Do-it-yourself service precautions

4-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance yourself, be sure to follow the correct procedure
given in these sections.
Do-it-yourself
maintenance
Parts and tools
Battery condition
(→P.213)
• Warm water
• Baking soda
• Grease
• Conventional wrench
(for terminal clamp bolts)
Blade type fuses
(→P.238)
• Fuse with same amperage rating as original
Brake fluid level
(→P.210)
• FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding fluid)
Cartridge type fuses
(→P.246)
• Genuine Lexus fuse or equivalent with same amperage rating as original
Engine air filter
• Genuine Lexus engine air filter or equivalent
Engine coolant level
(→P.208)
• “Toyota Super Long Life Coolant” or similar high
quality ethylene glycol based non-silicate, non-amine,
non-nitrite and non-borate coolant with long-life
hybrid organic acid technology. “Toyota Super Long
Life Coolant” is pre-mixed with 50% coolant and
50% de-ionized water (for the U.S.A.) or 55% coolant and 45% de-ionized water (for Canada).
• Funnel (used only for adding coolant)
Engine oil level
(→P.204)
• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding oil)
Headlight aim
(→P.248)
• Phillips-head screwdriver
196
4-3. Do-it-yourself maintenance
Do-it-yourself
maintenance
Power steering fluid level
(→P.212)
Parts and tools
• Automatic transmission fluid DEXRON® ll or lll
• Rag or paper towel
• Funnel (used only for adding fluid)
Radiator and condenser
(→P.210)
Tire inflation pressure
(→P.227)
Washer fluid
(→P.217)
⎯
• Tire pressure gauge
• Compressed air source
• Washer fluid containing antifreeze
(for winter use)
• Funnel (used only for adding washer fluid)
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Maintenance and care
197
4-3. Do-it-yourself maintenance
CAUTION
The engine compartment contains many mechanisms and fluids that many move suddenly, become hot, or become electrically energized. To avoid death or serious injury:
n When working on the engine compartment:
l Keep hands, clothing, and tools away from the moving fan and engine drive belt.
l Be careful not to touch the engine, radiator, exhaust manifold and power steering
fluid reservoir, etc. right after driving as they may be hot. Oil and other fluids may
also be hot.
l Do not leave anything that may burn easily, such as paper or rags, in the engine
compartment.
l Do not smoke, cause sparks or expose an open flame to fuel or the battery.
Fuel and battery fumes are flammable.
l Be extremely cautious when working on the battery.
It contains poisonous and corrosive sulfuric acid.
n When the engine is running
Perform maintenance checks with adequate ventilation.
n When working near the electric cooling fan or radiator grill:
Be sure the ignition is off. With the ignition on, the electric cooling fan may automatically start to run if the air conditioning is on and/or if the coolant temperature is
high. (→P.203)
n When working on or under the vehicle:
l Do not get under the vehicle with just the jack supporting it.
Always use automotive jack stands or other solid supports.
l Use eye protection to prevent flying or falling material, fluid spray, etc. from get-
ting in your eyes.
198
4-3. Do-it-yourself maintenance
NOTICE
n If you remove the engine air filter:
Driving with the engine air filter removed may cause excessive engine wear due to
dirt in the air.
Also, a backfire could cause a fire in the engine compartment.
4
Maintenance and care
199
4-3. Do-it-yourself maintenance
Hood
Lift the hood to inspect engine components and fluid levels.
Pull the hood release lever.
The hood will pop up slightly.
Lift the hood catch and lift the
hood.
CAUTION
n Pre-driving check
Check that the hood is fully closed and locked.
If the hood is not locked properly it may open while the vehicle is in motion and
cause an accident, which may result in death or serious injury.
200
4-3. Do-it-yourself maintenance
Positioning the jack
When raising your vehicle, position the jack correctly. Improper placement
may damage your vehicle or cause injury.
FRONT
REAR
4
Maintenance and care
201
4-3. Do-it-yourself maintenance
CAUTION
n When raising your vehicle:
Make sure to observe the following to reduce the possibility of death or serious
injury.
l Do not put any part of your body or get underneath the vehicle supported only by
the jack.
Always use automotive jack stands or a solid, level, surface.
l Do not start or run the engine while your vehicle is supported by the jack.
l Stop the vehicle on level firm ground, firmly set the parking brake and put the
selector lever in “P” position.
l Make sure to set the jack properly at the jack point.
Raising the vehicle with an improperly positioned jack will damage the vehicle or
may allow the vehicle to fall off the jack.
l Do not raise the vehicle with someone in the vehicle.
l When raising the vehicle, do not place any objects on top of or underneath the
jack.
202
4-3. Do-it-yourself maintenance
Engine compartment
1
2
3
4
6
Radiator
(→P.210)
8 Condenser
(→P.210)
9 Engine coolant reservoir
(→P.208)
10 Electric cooling fans
11 Power steering fluid
reservoir
(→P.212)
7
203
4
Maintenance and care
5
Battery
(→P.213)
Fuse box (→P.238, P.246)
Engine oil filler cap
(→P.204)
Engine oil level dipstick
(→P.204)
Brake fluid reservoir
(→P.210)
Washer fluid tank (→P.217)
4-3. Do-it-yourself maintenance
Engine oil
With the engine at operating temperature and turned off, check the oil
level on the dipstick.
n Checking the engine oil
Park the vehicle on level ground.
After turning off the engine, wait a few minutes for the oil to drain
back into the bottom of the engine.
Hold a rag under the end and pull
the dipstick out.
Wipe it clean.
Standing up on the left side of the vehicle, reinsert the dipstick in
the direction so that the “ENGINE OIL” on top should be read
correctly.
Holding a rag under the end, pull the dipstick out and check the
oil level.
1 Low
2 Full
Wipe dipstick and reinsert until fully seated.
204
4-3. Do-it-yourself maintenance
n Adding engine oil
If the oil level is below or near the
low line, add engine oil of the same
type as already in the engine.
Make sure to check the oil type and prepare the items needed before
adding.
Oil grade
Items
ILSAC multigrade engine oil.
Clean funnel (only for adding oil)
n Recommended viscosity
Temperature range anticipated before next oil change.
SAE 5W-30 is the best choice for
good fuel economy, and good
starting in cold weather.
If SAE 5W-30 is not available, SAE
10W-30 may be used. However, it
should be replaced with 5W-30 at
the next oil change.
205
4
Maintenance and care
Remove the oil filler cap.
Add engine oil slowly, checking the dipstick.
Return the filler cap and turn the cap clockwise until you hear a
click.
It takes about 1.6 qt. (1.5 L, 1.3 lmp.qt.) to raise the oil level from low to full
on the dipstick.
4-3. Do-it-yourself maintenance
n How to read oil container labels
The ILSAC (International Lubricant Standardization and Approval
Committee) Certification Mark is added to some oil containers to help
you select the oil you should use.
ILSAC Certification Mark
n Resetting the engine oil replacement reminder (U.S.A. only)
Turn the ignition key to the “OFF” position with the odometer reading
shown. (→P.98)
Turn the ignition key to the “ON” position while holding down the
“RESET” button.
Hold down the button more than 5 seconds.
If the system fails to reset, the light will continue flashing.
n Engine oil consumption
l The amount of engine oil consumed depends on the oil viscosity, the quality of
the oil and the way the vehicle is driven.
l More oil is consumed under driving conditions such as high speeds and fre-
quent acceleration and deceleration.
l A new engine consumes more oil, since its pistons, piston rings and cylinder
walls have not become conditioned.
l When judging the amount of oil consumption, keep in mind that the oil may
have become diluted, making it difficult to judge the true level accurately.
l Oil consumption: Max. 1.1 qt. per 600 miles (1.0 L/1000 Km, 0.9 lmp.qt/600
miles).
l If you consume more than 1.1 qt. (1.0 L, 0.9 lmp.qt.) every 600 miles (1000 km),
contact your Lexus dealer.
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4-3. Do-it-yourself maintenance
CAUTION
n Used engine oil
l Used engine oil contains potentially harmful contaminants which may cause skin
disorders such as inflammation or skin cancer, so care should be taken to avoid
prolonged and repeated contact with it. To remove used engine oil from your
skin, wash thoroughly with soap and water.
l Dispose of used oil and filters only in a safe and acceptable manner. Do not dis-
pose of used oil and filters in household trash, in sewers or onto the ground. Call
your Lexus dealer, service station or auto parts store for information concerning
recycling or disposal.
l Do not leave used engine oil within the reach of children.
NOTICE
n To prevent serious engine damage
4
Check the oil level regularly.
n When replacing the engine oil
Maintenance and care
l Be careful not to spill engine oil on the vehicle components.
l Avoid overfilling, or the engine could be damaged.
l Check the oil level on the dipstick every time you refill the vehicle.
l Be sure the engine oil filler cap is properly retightened.
207
4-3. Do-it-yourself maintenance
Engine coolant
The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold.
1
2
3
Reservoir cap
Full line
Low line
If the level is on or below the
“LOW” line, add coolant to the reservoir up to the “FULL” line.
n If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, engine coolant filler cap, radiator cap and drain
cock and water pump. If you can not find a leak, have your Lexus dealer test the cap
pressure and check for leaks in the cooling system.
n Coolant type selection
Use of improper coolants may damage your engine cooling system.
Only use “Toyota Super Long Life Coolant” or similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life
hybrid organic acid technology. (Coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids.)
For the U.S.A. :“Toyota Super Long Life Coolant” is a mixture of 50% coolant
and 50% deionized water. (Enabled: -31°F (-35°C))
For Canada
:“Toyota Super Long Life Coolant” is a mixture of 55% coolant
and 45% deionized water. (Enabled: -44°F (-42°C))
Please contact your Lexus dealer for further details.
208
4-3. Do-it-yourself maintenance
CAUTION
n When the engine is hot
Do not remove the radiator cap. The cooling system may be under pressure and
may spray hot coolant if the cap is removed, causing burns or other injuries.
Do not touch the radiator or condenser, as they may be not and may cause burns.
NOTICE
n When adding engine coolant
Do not use plain water alone.
n If you spill coolant:
Be sure to wash it off with water to prevent damage to parts or paint.
4
Maintenance and care
209
4-3. Do-it-yourself maintenance
Radiator and condenser
Check the radiator and condenser and clear any foreign objects. If the
parts are extremely dirty or you are not sure of their condition, have your
vehicle checked by your Lexus dealer.
Brake fluid
n Fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
Make sure to check the fluid type and prepare the necessary items.
Fluid type
Items
210
FMVSS No.116 DOT 3 or SAE J1703 brake fluid
Funnel (for adding brake fluid only)
4-3. Do-it-yourself maintenance
n Adding fluid
Turn the ignition switch off.
Depress the brake pedal 40 times or more.
Remove the reservoir cap.
Add newly opened brake fluid up to the “MAX” line.
n Brake fluid absorbs moisture from the air
Excess moisture in the fluid can cause a dangerous loss of braking efficiency. Use
only newly opened brake fluid.
CAUTION
n When filling the reservoir
NOTICE
n If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or
when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious mechanical problem.
Have the system checked by your Lexus dealer.
211
4
Maintenance and care
Be careful because brake fluid can harm your hands or eyes and damage painted
surfaces.
If fluid gets in your eyes, flush your eyes with clean water immediately.
If you still experience discomfort, seek medical attention.
4-3. Do-it-yourself maintenance
Power steering fluid
n Fluid level
The fluid level should be within the
appropriate range.
1
2
3
4
Full line when hot.
Add fluid if at or below line
when hot.
Full line when cold
Add fluid if at or below line
when cold.
Hot : If the vehicle has been driven around 50 mph (80 km/h) for 20 minutes (slightly longer in frigid temperatures), the fluid is hot (140°F 175°F or 60°C - 80°C).
Cold: If the engine has not been run for about five hours, the fluid is cold.
(about room temperature, 50°F - 85°F or 10°C - 30°C).
n Checking the fluid level
Make sure to check the fluid type and prepare the necessary items
before checking.
Fluid type
Items
Automatic transmission fluid DEXRON® II or III
Rag or paper towel and funnel (only for adding fluid)
Clean all dirt off the reservoir.
Remove the reservoir cap by turning it counterclockwise and
wipe the dipstick clean.
Reinstall the reservoir cap.
Remove the reservoir cap again and look at the fluid level.
212
4-3. Do-it-yourself maintenance
CAUTION
n When checking the reservoir
Take care, as the reservoir may be hot.
NOTICE
n When adding fluid
Avoid overfilling, or the power steering may be damaged.
n After replacing the reservoir cap
Check the steering box case, vane pump and hose connections for leaks or damage.
Battery
Check the battery as follows:
1
2
Terminals
Hold-down clamp
213
4
Maintenance and care
n Battery exterior
Make sure that the battery terminals are not corroded and that there
are no loose connections, cracks, or loose clamps.
4-3. Do-it-yourself maintenance
n Before recharging
Recharging, the battery produces hydrogen gas which is flammable and explosive.
Before recharging:
l If recharging with the battery installed in the vehicle, be sure to disconnect the
ground cable.
l Make sure the power switch on the recharger is off when connecting and dis-
connecting the charger cables to the battery.
214
4-3. Do-it-yourself maintenance
CAUTION
n Emergency measures regarding electrolyte
l If electrolyte gets in your eyes
Flush them with clean water for at least 15 minutes and get immediate medical
attention. If possible, continue to apply water with a sponge or cloth while traveling to the medical office.
l If electrolyte gets on your skin
Thoroughly wash the affected area. If you feel pain or burning, get medical attention immediately.
l If electrolyte gets on your clothes
It can soak through clothing onto your skin. Immediately take off the clothing and
follow the procedure above if necessary.
l If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Follow with milk of magnesia, beaten raw
egg or vegetable oil. Get emergency medical attention immediately.
n Chemicals in the battery:
l Do not cause sparks by touching the battery terminals with tools.
l Do not smoke or light a match near the battery.
l Avoid contact with eyes, skin and clothes.
l Never inhale or swallow electrolyte.
l Wear protective safety glasses when working near the battery.
l Keep children away from the battery.
n Where to safety recharge the battery
Always charge the battery in an open area. Do not charge the battery in a garage or
closed room where there is not sufficient ventilation.
215
4
Maintenance and care
A battery contains poisonous and corrosive sulfuric acid and may produce hydrogen gas which is flammable and explosive. To reduce the risk of death or serious
injury, take the following precautions while working on or near battery:
4-3. Do-it-yourself maintenance
CAUTION
n How to recharge the battery
Only perform a slow charge (5 A or less). The battery may explode if charged at a
quicker rate.
NOTICE
n When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all accessories are turned off.
216
4-3. Do-it-yourself maintenance
Washer fluid
n Adding fluid
If any washer does not work, the
washer tank may be empty. Add
washer fluid.
NOTICE
n Use washer fluid only
4
n Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the washer fluid tank when diluting
washer fluid.
217
Maintenance and care
Do not use soapy water or engine anti-freeze instead of washer fluid.
Doing so may result in streaking the vehicle’s painted surface.
4-3. Do-it-yourself maintenance
Tires
Replace the tires when the tread wear indicators show.
n Checking tires
1
2
3
New tread
Tread wear indicator
Worn tread
The location of tread wear indicators is shown by the “TWI” or “∆”
marks, etc., molded on the sidewall
of each tire.
n Tire rotation
Front
The wheel assemblies must be
rotated as shown.
Lexus recommends tire rotation
per the maintenance schedule to
equalize tire wear and extend tire
life.
n The tire pressure warning system
Your Lexus is equipped with a tire pressure warning system that uses
tire pressure warning valve & transmitters to detect low tire inflation
pressure before serious problems arise. (→P. 270)
218
4-3. Do-it-yourself maintenance
Installing tire pressure warning valve & transmitters
When replacing tires or wheels, tire pressure warning valve & transmitters must also be installed.
When new tire pressure warning valve & transmitters are installed, new
tire pressure warning valve & transmitter ID codes must be registered in
the tire pressure warning ECU and tire pressure warning system must be
initialized. Have tire pressure warning valve & transmitter ID codes registered by your Lexus dealer. (→P. 219, 220)
Initializing the tire pressure warning system
n The tire pressure warning system must be initialized in the following
circumstances:
l When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
n How to initialize the tire pressure warning system
STEP 1 Park the vehicle in safe place and turn off the engine.
STEP 2 Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. (→P. 227)
Make sure to adjust the tire pressure to the specified cold tire
inflation pressure level. The tire pressure warning system will
operate based on this pressure level.
STEP 3 Turn the ignition switch to “ON” position.
219
4
Maintenance and care
When the tire pressure warning system is initialized, the current tire
inflation pressure is set as the pressure benchmark.
4-3. Do-it-yourself maintenance
STEP 4
Press the tire pressure warning
reset button for more than 3 seconds. At this time, the tire inflation
pressure warning indicator flashes
3 times.
STEP 5
Wait for a few minutes with the ignition switch “ON”, and then
turn the ignition switch to “OFF” position.
Registering and selecting ID codes
n Registering ID codes
2 sets of tire pressure warning valve and transmitter ID codes can be
registered. Once a second set of tires is registered at “2nd”, you can
switch between tire set settings simply by pressing the tire pressure
warning select switch.
There are 2 settings:
“MAIN” position: The ID code of the tire pressure warning valve &
transmitter on the tires originally installed on the vehicle is registered.
“2nd” position: The code is not registered. When you replace a new set
of tires, purchase tire pressure warning valve & transmitters from your
Lexus dealer and have the new ID code registered by your Lexus
dealer.
220
4-3. Do-it-yourself maintenance
n Selecting ID codes
When replacing tires, make sure to select the ID code set that matches
the new tire set. If the tire pressure select switch is set to the wrong tire
setting, the system will not work properly. After about 1 hour, the tire
pressure warning light comes on after blinking for 1 minute to indicate
a system malfunction.
“MAIN”
“2nd”
n When to replace your vehicle’s tires
4
Tires should be replaced if:
fabric or bulges indicating internal damage
l A tire goes flat repeatedly or cannot be properly repaired due to the size or
location of a cut or other damage
If you are not sure, consult with your Lexus dealer.
n Tire life
Any tire over 6 years old must be checked by a qualified technician even if they
have seldom or never been used or damage is not obvious.
n If the tread wears down below 0.16 in. (4 mm) on snow tires
The effectiveness of snow tires is lost.
221
Maintenance and care
l You have tire damage such as cuts, splits, cracks deep enough to expose the
4-3. Do-it-yourself maintenance
n Low profile tires (245/40R18, P245/40R18 and 245/40ZR18 tires)
Generally, low profile tires will wear more rapidly and tire grip performance will be
reduced on snowy and/or icy roads when compared to standard tires. Be sure to
use snow tires or snow chains on snowy and/or icy roads and drive carefully at a
speed appropriate for road and weather conditions.
n Maximum load of tire
Check that the maximum load of the replaced tire is greater than 1/2 of the Gross
Axle Weight Ratings (GAWR) of either the front axle or the rear axle, whichever is
greater.
As for the maximum load of the tire, see the load limit at maximum cold tire inflation
pressure mentioned on the sidewall of the tire, and as for the Gross Axle Weight
Ratings (GAWR), see the Certification Label. (→P. 227, 311).
n Tire types
1 Summer tires
Summer tires are high-speed performance tires best suited to highway driving
under dry conditions. Since summer tires do not have the same traction performance as snow tires, summer tires are inadequate for driving on snow-covered or
icy roads. For driving on snow-covered roads or icy roads, the use of snow tires is
recommended. When installing snow tires, be sure to replace all four tires.
2 All season tires
All season tires are designed to provide better traction in snow and to be adequate
for driving in most winter conditions, as well as for use year round. All season tires,
however, do not have adequate traction performance compared with snow tires in
heavy or loose snow. Also, all season tires fall short in acceleration and handling
performance compared with summer tires in highway driving.
3 Snow tires
For driving on snow-covered roads or icy roads, we recommend using snow tires. If
you need snow tires, select tires of the same size, construction and load capacity as
the originally installed tires. Since your vehicle has radial tires as original equipment,
make sure your snow tires also have radial construction. Do not install studded tires
without first checking local regulations for possible restriction. Snow tires should be
installed on all wheels. (→P. 122)
n Initializing the tire pressure warning system
Initialize the tires with the tire inflation pressure adjusted to the specified level.
222
4-3. Do-it-yourself maintenance
n If you push the tire pressure reset switch accidentally
If initialization is performed, adjust the tire inflation pressure to the specified level
and initialize the system again.
n When the initialization of the tire pressure warning system has failed
Initialization can be completed in a few minutes. However, in the following cases,
the settings have not been recorded and the system will not operate properly. If
repeated attempts to record tire inflation pressure settings are unsuccessful, have
the vehicle inspected by your Lexus dealer.
l When operating the tire pressure warning reset switch, the warning light does
not flash 3 times.
l After driving for a certain period of time since the initialization has been com-
pleted, the warning light comes on after blinking for 1 minute.
n Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation pressure
checks. Make sure to check tire inflation pressure as part of your routine of daily
vehicle checks.
4
Maintenance and care
223
4-3. Do-it-yourself maintenance
n Tire pressure warning system certification
For vehicles sold in the U.S.A.
NOTE:
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
NOTICE:
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
l Reorient or relocate the receiving antenna.
l Increase the separation between the equipment and receiver.
l Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
l Consult the dealer or an experienced radio/TV technician for help.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
For vehicles sold in Canada
NOTE:
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
224
4-3. Do-it-yourself maintenance
CAUTION
n When inspecting or replacing tires
Observe the following precautions to prevent accidents. Failure to do so may cause
damage to parts of the drive train, as well as dangerous handling characteristics,
which may lead to fatal or injury accidents.
l Do not mix tires of different makes, models, tread patterns or tread wear.
l Do not use tire sizes other than those recommended by Lexus.
l Do not mix radial, bias-belted, or bias-ply tires.
l Do not mix summer, all season and winter tires.
n When initializing the tire pressure warning system
Do not push the tire pressure warning reset switch without first adjusting the tire
inflation pressure to the specified level. Otherwise, the tire pressure warning light
may not come on even if the tire inflation pressure is low, or it may come on when
the tire inflation pressure is actually normal.
4
Maintenance and care
225
4-3. Do-it-yourself maintenance
NOTICE
n Repairing or replacing tires, wheels and tire pressure warning valve & transmit-
ters
l When removing or fitting the wheels, tires or the tire pressure warning valve &
transmitter, contact your Lexus dealer as the tire pressure warning valve & transmitter may be damaged if not handled correctly.
l When replacing tires, make sure also to replace the tire pressure warning valve &
transmitter grommets.
n Do not use puncture sealant sprays to repair flats
Puncture sealant sprays may damage tire pressure tire pressure warning valve &
transmitters.
n Driving on rough roads
Take particular care when driving on roads with loose surfaces or potholes.
These conditions may cause losses in tire inflation pressure, reducing the cushioning ability of the tires. In addition driving on rough roads may cause damage to the
tires themselves, as well as the vehicle’s wheels and body.
n Low profile tires (245/40R18, P245/40R18 and 245/40ZR18 tires)
Low profile tires may cause greater damage than usual to the tire wheel when
receiving impact from the road surface. Therefore pay attention to the following:
l Be sure to use proper tire inflation pressure. If tires are under-inflated, they may
be damaged more severely.
l Avoid hot holes, uneven pavement, curbs and other road hazards. Failure to do so
can lead to severe tire and wheel damage.
n If tire inflation pressures become low while driving
Do not continue driving, or your tires and/or wheels may be ruined.
226
4-3. Do-it-yourself maintenance
Tire inflation pressure
n Tire inflation pressure
The recommended cold tire inflation pressure and tire size is displayed
on the tire and loading information label.
Type A&B
4
Maintenance and care
Type C
227
4-3. Do-it-yourself maintenance
Recommended cold tire inflation pressure
Tire size
245/40R18 93Y
P245/40R18 93V
245/40ZR18
Inflation pressure psi (kPa, kgf/cm2 or bar)
Front
33 (230, 2.3)
Rear
33 (230, 2.3)
Front
33 (230, 2.3)
Rear
33 (230, 2.3)
Front
33 (230, 2.3)
Rear
33 (230, 2.3)
For sustained high speeds above 112 mph (180 km/h), in countries where such
speeds are permitted by law, add the below pressure to the front tires and rear
tires, but never exceed the maximum cold tire inflation pressure molded on the
tire sidewall.
• 12 psi (80 kPa, 0.8 kgf/cm2 or bar)
228
4-3. Do-it-yourself maintenance
n Inspection and adjustment procedure
1 Tire valve
2 Tire pressure gauge
Remove the tire valve cap.
Press the tip of the tire pressure gauge to the tire valve.
Read the pressure using the graduations on the gauge.
If the tire inflation pressure is not within recommended levels,
inflate the tire.
If you add too much air, press the center of the valve to lower.
4
229
Maintenance and care
After completing tire inflation pressure measurement and adjustment, apply soapy water to the valve and check for leakage.
Reinstall the tire valve cap.
4-3. Do-it-yourself maintenance
n Tire inflation pressure check interval
You should check the tire inflation pressure every two weeks, or at least once a
month.
Do not forget to check the air pressure of the spare tire, if so equipped. The inflation
pressure for the compact spare tire should be 60 psi (420 kPa, 4.3 kgf/cm2, 4.2
bar). (→P.317)
n Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
l Wasting fuel
l Reducing driving comfort and tire life
l Making your vehicle less safe to drive
If a tire needs frequent refilling, have it checked by your Lexus dealer.
n Instructions for checking tire inflation pressure
When checking tire inflation pressure, observing the following:
l Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours and has not been driven for
more than 1 mile or 1.5 km since, you will get an accurate cold tire inflation pressure reading.
l Always use a tire pressure gauge.
The appearance of the tire can be misleading. In addition, tire inflation pressures
that are even just a few pounds off can degrade ride and handling.
l Do not bleed or reduce tire inflation pressure after driving.
It is normal for the tire inflation pressure to be higher after driving.
l Never exceed the vehicle weight capacity.
Passengers and luggage weight should be placed so that the vehicle is balanced.
230
4-3. Do-it-yourself maintenance
CAUTION
n When inspecting and adjusting tire pressure
Be sure to reinstall the tire valve caps.
Without the valve caps, dirt or moisture could get into the valve and cause air leakage, which could result in an accident. If the caps have been lost, have new ones put
on as soon as possible.
n Proper inflation is critical to safe tire performance
Keep your tires properly inflated. Otherwise, the following conditions may occur
and result in an accident causing in death or serious injury.
l Excessive wear
l Uneven wear
l Poor handling
l Possibility of blowouts from overheated tires
4
l Poor sealing of the tire bead
l Wheel deformation and/or tire separation
Prior to operating your vehicle, visually inspect the tires, check for abnormal tread
wear, bulging, low ride, cracking, and other damage. If you suspect something is
wrong with a tire, have it checked by a qualified technician.
NOTICE
n When inspecting and adjusting tire inflation pressure
Be sure to reinstall the tire valve caps.
Without the valve caps, dirt or moisture could get into the valve and cause air leakage, which could result in an accident. If the caps have been lost, replace them as
soon as possible.
231
Maintenance and care
l A greater possibility of tire damage from road hazards
4-3. Do-it-yourself maintenance
Wheels
If your wheel is bent, cracked or heavily corroded, the wheel should be
replaced. Otherwise, the tire may separate from the wheel or cause loss of
handling control.
n Wheel selection
When replacing wheels, care should be taken to ensure that they are
equivalent to those removed in load capacity, diameter, rim width, and
offset.
Replacement wheels are available at your Lexus dealer.
Lexus does not recommend using:
l
Wheels of different sizes or types
l
Used wheels
l
Bent wheels that have been straightened
l
Lexus wheels with after market chrome plating
n Aluminum wheel precautions
l Use only Lexus wheel nuts and a wrench designed for your aluminum wheels.
l
l
l
232
When rotating, repairing or changing your tires, check that the
wheel nuts are still tight after driving 1000 miles (1600 km).
Be careful not to damage the aluminum wheels when using tire
chains.
Use only Lexus balance weights or equivalent and a plastic or rubber hammer when balancing your wheels.
4-3. Do-it-yourself maintenance
n When replacing wheels
The wheels of your Lexus are equipped with tire pressure warning valve & transmitters that allow the tire pressure warning system to provide advanced warning in the
event of a loss in tire inflation pressure. Whenever wheels are replaced, the tire
pressure warning valve & transmitters must be switched over from the old wheels.
(→P. 219)
CAUTION
n When replacing wheels
l Do not use wheels that are a different size from those recommended in the
Owner's Manual, as this may result in loss of handling control.
l Never using an inner tube in a leaking wheel which is designed for a tubeless tire.
Doing so may result in an accident, causing death or serious injury.
NOTICE
4
n Replacing tire pressure warning valve & transmitters
transmitters, make sure to have tires serviced by your Lexus dealer or other qualified service shop. In addition, make sure to purchase your tire pressure warning
valve & transmitters at your Lexus dealer.
l Ensure that only Genuine Lexus wheels are used on your vehicle.
Tire pressure warning valve & transmitters may not work properly with non-genuine wheels.
n Wheel ornaments
Do not remove the wheel ornaments. Doing
so may cause damage to the clips inside the
ornaments.
233
Maintenance and care
l Because tire repair or replacement may affect the tire pressure warning valve &
4-3. Do-it-yourself maintenance
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air conditioning efficiency.
n How to replace the air conditioning filter
Turn the ignition switch to LOCK.
Open the glove box.
Pull the cover.
Remove the filter cover and take
out the filter.
234
4-3. Do-it-yourself maintenance
Filter
2 Filter case
Remove the air conditioning filter
from the filter case and replace it
with a new one.
1
The ↑ UP marks shown on the filter
and the filter case should be pointing up.
n Changing interval
Inspect and replace the air conditioning filter according to the maintenance schedule. In dusty areas or areas with heavy traffic flow, such as inner city or desert areas,
early replacement may be required. (For scheduled maintenance information,
please refer to the “Warranty and Services Guide/Owner’s Manual Supplement/
Scheduled Maintenance”.)
4
Maintenance and care
n If air flow decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
n When using the air conditioning system
Use of the system with the air filter removed or improperly installed could result in a
malfunction.
Make sure that a filter is always installed.
n Do not wash or air-blow the filter
Do not wash or air-blow the filter or it may cause the system to malfunction. Always
replace dirty filters.
235
4-3. Do-it-yourself maintenance
Wireless remote control battery
Replace the battery with a new one if it discharges.
n You will need the following items:
l Small Phillips-head screwdriver
l
Lithium battery (CR1616)
Screw
Cover
Module
Screw
Battery
Remove the screws.
Push the cover in the
direction of the arrow and
remove it.
Remove the module.
Remove the two screws
and the module cover.
Insert a new battery with
the + terminal facing up.
n If the wireless remote control key battery is discharged
The following symptoms may occur:
l The wireless remote control does not function properly.
l The operation distance becomes shorter.
l The brightness of the LED on the remote control decreases or does not light up.
236
4-3. Do-it-yourself maintenance
n Use specified lithium battery
l Batteries can be purchased at your Lexus dealer, jeweler, or camera store.
l Replace only with the same or equivalent type recommended by a Lexus dealer.
l Dispose of used batteries according to the local laws.
n Checking remote control operation after replacing the battery
Push any of the buttons on the remote control and check that the LED lights up.
CAUTION
n Removed battery and other parts
Keep away from children.
These parts are small and if swallowed by a child they can cause choking.
NOTICE
4
n For normal operation after replacing the battery
l Always replace the battery with clean hands.
Moisture may cause the battery to rust.
l Do not touch or move any other components inside the remote control.
l Do not bend either of the battery terminals.
l Do not let foreign objects, oils, etc. enter the module.
l Do not to lose the screws or O-ring.
l Do not to bend or damage the O-ring when replacing the module cover.
237
Maintenance and care
Observe the following precautions when replacing the wireless remote control’s
battery.
4-3. Do-it-yourself maintenance
Blade fuses
If a light does not turn on or if any of the electrical components do not operate, a
fuse may have blown. If this happens check and replace the fuses as necessary.
If after replacing the fuse the light still does not illuminate, the bulb may need
replacing.
Turn the key to LOCK.
Open the fuse box cover.
Fuse box inside the engine compartment
Push the tabs in and lift the lid
off.
Fuse box inside the engine compartment
Pull the tab and remove the lid.
238
4-3. Do-it-yourself maintenance
Fuse box inside the driver’s side
kick panel
Pull the knob and remove the
lid.
Fuse box inside the passenger’s
side kick panel
Pull the knob and remove the
lid.
4
Fuse box inside the trunk
Inspect the suspected fuse and refer to “Fuse layout and amperage rating”. (→P.241)
239
Maintenance and care
Pull the tab and remove the lid.
4-3. Do-it-yourself maintenance
Remove the fuse with the pull-out
tool and check if it has blown.
1
2
Spare fuses
Pull-out tool
Determining if a fuse has blown.
1
Normal fuse
If the lights do not turn on even
after the fuse has been replaced, a
bulb may need replacement.
(→P.250)
2
Blown fuse
Replace it with one of an appropriate amperage rating. The amperage rating can be found on the fuse
box lid.
If the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.
240
4-3. Do-it-yourself maintenance
Fuse layout and amperage rating
n Engine compartment fuse box
Pull-out tool
Spare fuses
4
Maintenance and care
241
4-3. Do-it-yourself maintenance
Fuse
242
Ampere
Circuit
1
IG2 MAIN
20
2
P-DOOR
25
3
D-DOOR
25
4
D/C CUT
15
Multiport fuel injection system/sequential
multiport fuel injection system
Power windows, Power door lock system,
Power rear view mirror control system, Outside rear view mirror defogger, Door courtesy lights
Power windows, Power door lock system,
Power rear view mirror control system, Outside rear view mirror defogger, Door courtesy lights
All components in “DOME”, “MPX-B1”,
“MPX-B2” and “MPX-B3” fuses
5
TURN-HAZ
15
Turn signal lights, Emergency flashers
6
ETCS
15
Multiport fuel injection system/sequential
multiport fuel injection system
7
HORN
10
Horn, Headlight switch
8
RADIO NO.1
30
Audio system
9
ALT-S
5
Charging system
10
EFI
25
Multiport fuel injection system/sequential
multiport fuel injection system
11
H-LP R LWR
15
Right-hand headlight (low beam)
12
H-LP L LWR
15
Left-hand headlight (low beam)
13
H-LP UPR
20
Headlight (high beam), Headlight switch
14
STARTER
7.5
Starting system
15
EFI NO.2
10
16
IGN
5
17
INJ
10
Multiport fuel injection system/sequential
multiport fuel injection system, Emission control system
Multiport fuel injection system/sequential
multiport fuel injection system, Anti-lock
brake system, Traction control system, Vehicle
stability control system, Cruise control system
Multiport fuel injection system/sequential
multiport fuel injection system
4-3. Do-it-yourself maintenance
n Fuse box in the driver’s side kick panel
Fuse
Ampere
Circuit
1
TI & TE
15
Tilt and telescopic steering
2
PANEL
5
Air conditioning system, Audio system, Glove
box light, Trip-information display, Cigarette
lighter, Electronic throttle control system
3
FR FOG
15
Fog lights, Headlight switch
4
D P/SEAT
30
Power seat system
5
D-IG
10
6
MPX-IG
7.5
Gauges and meters, Headlight cleaner,
Charging system, Seat belt pretensioner system
Tilt and telescopic steering, Power door lock
system, SRS, Power seat system
7
WIPER
30
Windshield wiper
8
PWR OUTLET
15
Power outlet
9
OBD
7.5
On-board diagnosis system
10
AM1
5
11
ABS-IG
7.5
Vehicle stability control system
12
SECURITY
7.5
Theft deterrent system
13
TAIL
7.5
Tail lights, Side marker lights, Parking lights,
Headlight switch
14
STOP
5
Stop lights
15
HEATER
10
Air conditioning system
4
243
Maintenance and care
Power source
4-3. Do-it-yourself maintenance
n Fuse box in the front passenger’s side kick panel
Fuse
244
Ampere
Circuit
1
IG2
7.5
SRS
2
MPX-B1
7.5
3
MPX-B3
7.5
4
DOME
7.5
5
MPX-B2
7.5
Power door lock, Steering lock, Engine immobilizer, Power seat system, Retractable hardtop
Tilt and telescopic steering, Headlight switch,
Windshield wiper and washer switch, Turn
signal switch
Interior light, Personal lights, Vanity lights, Foot
lights, Ignition switch light, Trunk light, Antenna,
Garage door opener system, Audio system
Gauges and meters, Vehicle stability control
system, tire pressure warning system
6
H-LP LVL
10
Headlight leveling system
7
P-IG
10
Shift lock system, Seat heater, Trip-information display, Antenna, Inside rear view mirror,
Theft deterrent system
8
SEAT HTR
20
Seat heater
9
RADIO NO.2
10
Audio system, Trip-information display, Seat
belt warning light, Shift lock system
10
CIG
15
Cigarette lighter
11
WASHER
20
Windshield washer
12
A/C
13
P P/SEAT
14
TV
5
30
5
Air conditioning system
Power seat system
TV, Navigation system
4-3. Do-it-yourself maintenance
n Fuse box in the trunk
Fuse
Ampere
Circuit
LCE LP
7.5
License plate lights
2
ROOF RH
20
Retractable hardtop lock system
3
FUEL OPN
10
Fuel filler door opener
4
ROOF LH
20
Retractable hardtop lock system
5
P-TRAY
20
Quarter windows
6
LGG LH
20
Luggage lock system
7
LGG RH
20
Luggage lock system
4
Maintenance and care
1
CAUTION
n When replacing a fuse
Observe the following precautions:
Failing to do so may cause damage, possibly a fire or injury.
l Never use a fuse of higher amperage rating, or use any other object in place of a
fuse.
l Always use genuine Lexus fuses, or equivalent. Do not use copper wire or other
objects, even as a temporary measure.
l Do not modify the fuse or the fuse box.
245
4-3. Do-it-yourself maintenance
Cartridge fuses
If the headlights or other electrical components do not work and the blade
fuses are O.K., check the cartridge fuses.
n Fuse location
Fuse box inside the engine compartment
Fuse box inside the engine compartment
n Checking whether fuses are good or blown
1 Good
2 Blown
If replacement is necessary, replace
with a genuine Lexus fuse or equivalent with same amperage rating as
original.
246
4-3. Do-it-yourself maintenance
n If there is an overload in the circuits from the battery
The fuses are designed to blow before the wiring harness is damaged.
CAUTION
n When replacing fuses
Always use a genuine Lexus fuse or equivalent.
Never install an ordinary wire - even as a temporary fix.
This may cause extensive damage and possibly a fire.
NOTICE
n Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer.
4
Maintenance and care
247
4-3. Do-it-yourself maintenance
Headlight aim
n Adjusting bolts
1
2
Adjusting bolt A
Adjusting bolt B
n Before checking the headlight aim
Make sure the vehicle has a full tank of gas and the body around
the headlight is not damaged.
Park the vehicle on a level spot.
Sit in the driver’s seat.
Bounce the vehicle several times.
Check the headlight aim.
248
4-3. Do-it-yourself maintenance
Adjusting the headlight aim
1
2
For adjusting bolt A
For adjusting bolt B
Turn bolt A in either direction using
a Phillips-head screwdriver.
Remember the turning direction
and the number of turns in mind.
4
If you cannot properly aim the headlights, take the vehicle to your Lexus dealer
to adjust the headlight aim.
After adjusting the headlight in the vertical direction, check if the light has been
shifted from the adjusted position in the horizontal direction.
249
Maintenance and care
Turn bolt B the same number of
turns and in the same direction as
step 1 using a Phillips-head screwdriver.
4-3. Do-it-yourself maintenance
Light bulbs
You can replace following bulbs. Contact your Lexus dealer for more information about replacing other light bulbs.
n Prepare a replacement light bulb.
Check the wattage of the light bulb being replaced. (→P.318)
Rear turn signal light
Back-up light
250
4-3. Do-it-yourself maintenance
Replacing light bulbs
n Rear turn signal lights
Use a wrench.
Turn counterclockwise.
4
Maintenance and care
Remove the bulb.
251
4-3. Do-it-yourself maintenance
n Back-up light
Turn counterclockwise.
Remove the bulb.
252
4-3. Do-it-yourself maintenance
n Installing light bulbs
Fully install light bulbs and any parts used to secure them. Failing to do so may result
in heat damage or fire, or water entering the headlight unit. This may damage the
headlights or cause condensation to build up on the lens.
n Condensation build up on the inside of the lens
Contact your Lexus dealer for more information in the following situations. Temporary condensation build up on the inside of the headlight lens does not indicate a
malfunction.
l Large drops of water are built up on the inside of the lens.
l Water has built up inside the headlight.
n LED light bulbs
The stop lights, high mounted stoplight and tail lights consist of a number of LEDs.
Although your vehicle is designed to conform to local laws (SAE) even if one LED in
a stop light, high mounted stoplight or tail light burn out, if any of the LEDs burn out,
take your vehicle to your Lexus dealer to have the light replaced.
The headlights may turn off or may not turn on for a short time. If they turn on after a
short period of time, this does not indicate a malfunction.
CAUTION
n Replacing light bulbs
l Turn off the headlight. Do not attempt to replace the bulb immediately after turn-
ing off the headlight.
The bulb becomes very hot and may cause burns.
l Do not touch the glass portion of the light bulb. Hold the bulb by the plastic or
metal portion.
If the bulb is scratched or dropped it may blow out or crack.
l Do not attempt to repair or disassemble light bulbs, connectors, electric circuits
or component parts.
Doing so may result in serious injury due to electric shock.
253
Maintenance and care
n Discharge headlights
4
4-3. Do-it-yourself maintenance
CAUTION
n Discharge headlights
l Always have your Lexus dealer change the
discharged head lights.
(Including light bulbs.)
l Do not touch the high-intensity discharge headlight’s high voltage socket when
the headlights are turned on. An extremely high voltage of 20,000 V will be discharged and could result in serious injury or death by electric shock.
l Do not attempt to take apart or repair the low beam headlight bulbs, connectors
power supply circuits, or related components. Doing so could result in electric
shock and serious injury or death. Call your Lexus dealer for headlight repair or
servicing, including replacement of bulbs and bulb disposal.
NOTICE
n To prevent damage or fire
l Make sure the bulb is fully seated and locked to prevent damage or fire.
l If your hands touch the glass portion of the bulb, wipe the bulb with alcohol
before use.
254
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