precautions. Toyota 2011, Sequoia, 2011 Sequoia

4-2. 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 Toyota dealer to service the vehicle.

■

Your vehicle may not pass the I/M test:

●

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 as a temporary malfunction and your vehicle may not pass the I/M test.

■

When the malfunction indicator lamp goes off 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 Toyota dealer to prepare the vehicle for re-testing.

508

4-3. Do-it-yourself maintenance

Do-it-yourself service precautions

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

Fuses

Items

Battery condition

Brake fluid level

Engine oil level

(



P. 524)

(



P. 521)

Engine coolant level (



P. 519)



P. 515)

(



P. 547)

Parts and tools

• Warm water

• Baking soda

• Grease

• Conventional wrench

(for terminal clamp bolts)

• FMVSS No.116 DOT 3 or SAE

J1703 brake fluid

• Rag or paper towel

• “Toyota Super Long Life Coolant” or similar high quality ethylene glycol based non-silicate, nonamine, non-nitrite and non-borate coolant with long-life hybrid organic acid technology.

U.S.A.:

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

Canada:

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

• Toyota Genuine Motor Oil or equivalent

• Rag or paper towel

• Funnel (used only for adding oil)

• Fuse with same amperage rating as original

4

509

4-3. Do-it-yourself maintenance

Light bulbs

Items

(

Power steering fluid level

(





P. 558)

P. 523)

Parts and tools

• Bulb with same number and wattage rating as original

• Phillips-head screwdriver

• Flathead screwdriver

• Automatic transmission fluid

DEXRON

®

II or III

• Rag or paper towel

• Funnel (used only for adding power steering fluid)



Radiator and condenser

(



P. 521)

Tire inflation pressure (

Washer fluid



P. 536)

(



P. 527)

• Tire pressure gauge

• Compressed air source

• Water

• Washer fluid containing antifreeze

(for winter use)

• Funnel (used only for adding washer fluid)

510

4-3. Do-it-yourself maintenance

CAUTION

The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or become electrically energized. To avoid death or serious injury observe the following precautions.

■

When working on the engine compartment

●

Keep hands, clothing, and tools away from the moving fan and engine drive belt.

●

Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driving as they may be hot. Oil and other fluids may also be hot.

●

Do not leave anything that may burn easily, such as paper or rags, in the engine compartment.

●

Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel and battery fumes are flammable.

●

Be extremely cautious when working on the battery. It contains poisonous and corrosive sulfuric acid.

●

Take care because brake fluid can harm your hands or eyes and damage painted surfaces.

If fluid gets on your hands or in your eyes, flush the affected area with clean water immediately.

If you still experience discomfort, see a doctor.

■

When working near the cooling fan or radiator grille

Be sure the engine switch is off.

With the engine switch on, the cooling fan may automatically start to run if the air conditioning is on and/or the coolant temperature is high.

■

Safety glasses

Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting in the eyes.

4

511

4-3. Do-it-yourself maintenance

NOTICE

■

If you remove the air cleaner

Driving with the air cleaner removed may cause excessive engine wear due to dirt in the air. Also a backfire could cause a fire in the engine compartment.

■

If the brake 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 brake fluid level in the accumulator is high.

If the reservoir needs frequent refilling, it may indicate a serious problem.

512