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6-2. Maintenance

389

General maintenance

Listed below are the general maintenance items that should be performed at the intervals specified in the “Warranty and Service Guide” or “Owner’s

Manual Supplement”. It is recommended that any problem you notice should be brought to the attention of your Lexus dealer or qualified service shop for advice.

Engine compartment

Items

Battery

Brake fluid

Engine coolant

Engine oil

Exhaust system

Radiator/condenser

Washer fluid

Check points

Check the battery fluid level and connections.

(

→P. 412)

Is the brake fluid at the correct level? (

→P. 411)

Is the engine coolant at the correct level?

(

→P. 408)

Is the engine oil at the correct level? (

→P. 403)

There should not be any fumes or strange sounds.

The radiator and condenser should be free from foreign objects. (

→P. 410)

Is there sufficient washer fluid? (

→P. 414)

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6-2. Maintenance

Vehicle interior

Automatic transmission “Park” mechanism

Lights

Parking brake

Items

Accelerator pedal

Brake pedal

Brakes

Head restraints

Indicators/buzzers

Check points

• The accelerator pedal should move smoothly

(without uneven pedal effort or catching).

• When parked on a slope and the shift lever is in P, is the vehicle securely stopped?

• Does the brake pedal move smoothly?

• Does the brake pedal have appropriate clearance from the floor? (

→P. 551)

• Does the brake pedal have the correct amount of free play? (

→P. 551)

• The vehicle should not pull to one side when the brakes are applied.

• The brakes should work effectively.

• The brake pedal should not feel spongy.

• The brake pedal should not get too close to the floor when the brakes are applied.

• Do the head restraints move smoothly and lock securely?

• Do the indicators and buzzers function properly?

• Do all the lights come on?

• Are the headlights aimed correctly?

*

(

→P. 437)

• Moves smoothly?

• When parked on a slope and the parking brake is on, is the vehicle securely stopped?

Seat belts

• Do the seat belts operate smoothly?

• The seat belts should not be damaged.

• Do the seat controls operate properly?

Seats

Steering wheel

• Does the steering wheel rotate smoothly?

• Does the steering wheel have the correct amount of free play?

• There should not be any strange sounds coming from the steering wheel.

*

: Vehicles with single-beam headlights

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6-2. Maintenance

391

Vehicle exterior

Doors/trunk

Items

Engine hood

Fluid leaks

Tires

Windshield wipers

Check points

• Do the doors/trunk operate smoothly?

• Does the engine hood lock system work properly?

• There should not be any signs of fluid leakage after the vehicle has been parked.

• Is the tire inflation pressure correct?

• The tires should not be damaged or excessively worn.

• Have the tires been rotated according to the maintenance schedule?

• The wheel nuts should not be loose.

• The wiper blades should not show any signs of cracking, splitting, wear, contamination or deformation.

• The wiper blades should clear the windshield without streaking or skipping.

WARNING

■

If the engine is running

Turn the engine off and ensure that there is adequate ventilation before performing maintenance checks.

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6-2. Maintenance

Emission inspection and maintenance (I/M) programs

Some states have vehicle emission inspection programs which include OBD

(On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system.

If the malfunction indicator lamp comes on

The OBD system determines that a problem exists somewhere in the emission control system. Your vehicle may not pass the I/M test and may need to be repaired. Contact your Lexus dealer to service the vehicle.

Your vehicle may not pass the I/M test in the following situations:

●

When the battery is disconnected or discharged

●

Readiness codes that are set during ordinary driving are erased.

Also, depending on your driving habits, the readiness codes may not be completely set.

When the fuel tank cap is loose

The malfunction indicator lamp comes on indicating a temporary malfunction and your vehicle may not pass the I/M test.

When the malfunction indicator lamp still remains on after several driving trips

The error code in the OBD system will not be cleared unless the vehicle is driven

40 or more times.

If your vehicle does not pass the I/M test

Contact your Lexus dealer to prepare the vehicle for re-testing.

GS350_200t_GS F_OM_OM30F82U_(U)

6-3. Do-it-yourself maintenance

Do-it-yourself service precautions

393

If you perform maintenance by yourself, be sure to follow the correct procedure as given in these sections.

Items

Battery condition

(

→P. 412)

Brake fluid level

(

→P. 411)

Engine/intercooler coolant level

(

→P. 408)

Engine oil level

(

→P. 403)

• Warm water

Parts and tools

• Baking soda • Grease

• Conventional wrench (for terminal clamp bolts)

• FMVSS No.116 DOT 3 or SAE J1703 brake fluid

• Rag or paper towel

• Funnel (used only for adding brake fluid)

• “

Toyota

Super Long Life Coolant” or a similar high quality ethylene glycol-based non-silicate, non-amine, non-nitrite and non-borate coolant with long-life hybrid organic acid technology

For the U.S.A.:

“Toyota Super Long Life Coolant” is pre-mixed with 50% coolant and 50% deionized water.

For Canada:

“Toyota Super Long Life Coolant” is pre-mixed with 55% coolant and 45% deionized water.

• Funnel (used only for adding coolant)

• “Toyota Genuine Motor Oil” or equivalent

• Rag or paper towel

• Funnel (used only for adding engine oil)

• Fuse with same amperage rating as original Fuses (

→P. 433)

Headlight aim

(

→P. 437)

*

• Phillips-head screwdriver

Light bulbs

(

→P. 439)

• Bulb with same number and wattage rating as original

• Phillips-head screwdriver • Flathead screwdriver

• Wrench

Radiator and condenser (

→P. 410)

Tire inflation pressure (

→P. 424)

• Tire pressure gauge

⎯

• Compressed air source

Washer fluid

(

→P. 414)

• Water or washer fluid containing antifreeze (for winter use)

• Funnel (used only for adding water or washer fluid)

*

: Vehicles with single-beam headlights

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