2012 Toyota Prius Owners Manual

405

4-2. Maintenance

Luggage compartment

Items

Check points

12-volt battery

Check the connections. (→P. 431)

Vehicle interior

Items

Check points

• The accelerator pedal should move smoothly (without uneven pedal effort or catching). • When parked on a slope and the shift position is in P, is the vehicle securely stopped? • Does the brake pedal move smoothly? • Does the brake pedal have appro- priate clearance from the floor? (→P. 568) • Does the brake pedal have the correct amount of free play? (→P. 568) • The vehicle should not pull to one side when the brakes are applied. • The brakes should work effec- tively. • The brake pedal should not feel spongy. • The brake pedal should not get too close to the floor when the brakes are applied.

Accelerator pedal

Hybrid transmission “Park” mech- anism

Brake pedal

Brakes

406

4-2. Maintenance

Items

Check points

Head restraints

Indicators/buzzers

Lights

Parking brake

Seat belts

Seats

Steering wheel

• Do the head restraints move smoothly and lock securely? • Do the indicators and buzzers function properly? • Do all the lights come on? • Does the parking brake pedal move smoothly? • When parked on a slope and the parking brake is on, is the vehicle securely stopped? • Do the seat belts operate smoothly? • The seat belts should not be dam- aged. • Do the seat controls operate properly? • 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.

407

4-2. Maintenance

Vehicle exterior

Items

Check points

Doors

Engine hood

Fluid leaks

Tires

• Do the doors operate smoothly? • Does the engine hood lock sys- tem work properly? • There should not be any signs of fluid leakage after the vehicle has been parked. • Is the tire inflation pressure cor- rect? • The tires should not be dam- aged or excessively worn. • Have the tires been rotated according to the maintenance schedule? • The wheel nuts should not be loose.

CAUTION

■If the hybrid system is operating

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

408

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 moni- tors 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 in the following situa-

tions: ● When the 12-volt 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 tempo- rary 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 Toyota dealer to prepare the vehicle for re-testing.

409

4-3. Do-it-yourself maintenance Do-it-yourself service precautions

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

Items

Parts and tools

12-volt battery condition

(→P. 431)

Brake fluid level

(→P. 427)

Engine/power control unit coolant level (→P. 424)

• 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 Cool- ant” is pre-mixed with 50% cool- ant and 50% deionized water. For Canada: “Toyota Super Long Life Cool- ant” is pre-mixed with 55% cool- ant and 45% deionized water. • Funnel (used only for adding cool- ant)

410

4-3. Do-it-yourself maintenance

Items

Parts and tools

Engine oil level

(→P. 420)

Fuses

(→P. 456)

Light bulbs

(→P. 467)

Radiator and condenser

(→P. 426)

Tire inflation pressure (→P. 447)

Washer fluid

(→P. 429)

• “Toyota Genuine Motor Oil” or equivalent • Rag or paper towel • Funnel (used only for adding engine oil) • Fuse with same amperage rating as original • Bulb with same number and watt- age rating as original • Phillips-head screwdriver • Flathead screwdriver • Wrench

⎯

• Tire pressure gauge • Compressed air source • Water or washer fluid containing antifreeze (for winter use) • Funnel (used only for adding water or washer fluid)

411

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

●Make sure that the indicator on the “POWER” switch and the “READY”

indicator are both off.

●Keep hands, clothing and tools away from the moving fan. ●Be careful not to touch the engine, power control unit, 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 and rags, in the

engine compartment.

●Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes

are flammable.

■When working near the electric cooling fans or radiator grille

Be sure the “POWER” switch is off. With the “POWER” switch in ON mode, the electric cooling fans may auto- matically start to run if the air conditioning is on and/or the coolant tempera- ture is high. (→P. 426)

■Safety glasses

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

NOTICE

■If you remove the air cleaner filter

Driving with the air cleaner filter removed may cause excessive engine wear due to dirt in the air. Also, a backfire could cause a fire in the engine com- partment.

412

4-3. Do-it-yourself maintenance Hood

Release the lock from the inside of the vehicle to open the hood.

STEP 1

STEP 2

Pull the hood lock release lever.

The hood will pop up slightly.

Pull up the auxiliary catch lever and lift the hood.

413

4-3. Do-it-yourself maintenance

STEP 3

Hold the hood open by insert- ing the supporting rod into either of the slots.

Use the forward slot to open the hood normally, or use the rearward slot when the hood needs to be opened wide.

CAUTION

■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.

■After installing the support rod into the slot

Make sure the rod supports the hood securely from falling down on to your head or body.

414

4-3. Do-it-yourself maintenance

NOTICE

■When closing the hood

Be sure to return the support rod to its clip before closing the hood. Closing the hood without returning the support rod properly could cause the hood to bend.

415

4-3. Do-it-yourself maintenance Positioning a floor jack

When raising your vehicle with a floor jack, position the jack cor- rectly. Improper placement (such as under rear suspension etc.) may damage your vehicle or cause injury. ■ Front

■ Rear

416

ITO43P106

4-3. Do-it-yourself maintenance

CAUTION

■When raising your vehicle

Make sure to observe the following precautions to reduce the possibility of death or serious injury:

●Lift up the vehicle using a floor jack such as the one shown in the illustra- tion.

●When using a floor jack, follow the instructions of the manual provided with

the jack.

●Do not use the jack that was supplied with your vehicle. ●Do not put any part of your body underneath the vehicle when it is sup-

ported only by the floor jack.

●Always use floor jack and/or automotive jack stands on a solid, flat, level

surface.

●Do not start the hybrid system while the vehicle is supported by the floor

jack.

●Stop the vehicle on level, firm ground, firmly set the parking brake and shift

the shift position to P.

●Make sure to set the floor jack properly at the jack point.

Raising the vehicle with an improperly positioned floor jack will damage the vehicle and may cause the vehicle to fall off the floor jack.

417

4-3. Do-it-yourself maintenance

CAUTION

●Do not raise the vehicle while someone is in the vehicle. ●When raising the vehicle, do not place any object on top of or underneath

the floor jack.

Rear suspension

●When raising the vehicle, do not set the

floor jack under the rear suspension.

Front

ITO43P206

418

4-3. Do-it-yourself maintenance Engine compartment

Engine coolant reservoir

(→P. 424)

Engine oil level dipstick

(→P. 420)

Engine oil filler cap

(→P. 420) Power control unit coolant reservoir (→P. 424)

Brake fluid reservoir

(→P. 427) (→P. 456) (→P. 426) (→P. 426)

Fuse box Radiator Condenser Electric cooling fans Washer fluid tank (→P. 429)

■12-volt battery

→P. 431

419

4-3. Do-it-yourself maintenance

Engine oil

With the engine at operating temperature and turned off, check the oil level on the dipstick. ■ Checking the engine oil

STEP 1

Park the vehicle on level ground. After warming up the engine and turning off the hybrid system, wait more than 5 minutes for the oil to drain back into the bottom of the engine.

STEP 2

Holding a rag under the end, pull the dipstick out.

STEP 3

STEP 4

STEP 5

STEP 6

Wipe the dipstick clean. Reinsert the dipstick fully. Holding a rag under the end, pull the dipstick out and check the oil level. Wipe the dipstick and reinsert it fully. Low Full

ITO43P108

420

■ Adding engine oil

4-3. Do-it-yourself maintenance

If the oil level is below or near the low level mark, add engine oil of the same type as that already in the engine.

Make sure to check the oil type and prepare the items needed before adding oil.

Engine oil selection →P. 564

Oil quantity (Low → Full)

1.6 qt. (1.5 L, 1.3 Imp.qt.)

Items

Clean funnel

STEP 1

STEP 2

STEP 3

Remove the oil filler cap by turning it counterclockwise. Add engine oil slowly, checking the dipstick. Install the oil filler cap by turning it clockwise.

421

4-3. Do-it-yourself maintenance

■Engine oil consumption

●The amount of engine oil consumed depends on the oil viscosity, the

quality of the oil and the way the vehicle is driven.

●More oil is consumed under driving conditions such as high speeds and

frequent acceleration and deceleration.

●A new engine consumes more oil. ●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 accu- rately.

●Oil consumption: Max. 1.1 qt./600 miles (1.0 L/1000 km, 0.9 Imp.qt./

600 miles)

●If your vehicle consumes more than 1.1 qt. (1.0 L, 0.9 Imp.qt.) every

600 miles (1000 km), contact your Toyota dealer.

422

4-3. Do-it-yourself maintenance

CAUTION

■Used engine oil

●Used engine oil contains potentially harmful contaminants which may cause skin disorders such as inflammation and skin cancer, so care should be taken to avoid prolonged and repeated contact. To remove used engine oil from your skin, wash thoroughly with soap and water.

●Dispose of used oil and filters only in a safe and acceptable manner. Do not dispose of used oil and filters in household trash, in sewers or onto the ground. Call your Toyota dealer, service station or auto parts store for information concerning recycling or disposal.

●Do not leave used engine oil within the reach of children.

NOTICE

■To prevent serious engine damage Check the oil level on a regular basis.

■When replacing the engine oil

●Be careful not to spill engine oil on the vehicle components. ●Avoid overfilling, or the engine could be damaged. ●Check the oil level on the dipstick every time you refill the vehicle. ●Be sure the engine oil filler cap is properly tightened.

423

4-3. Do-it-yourself maintenance

Coolant

The coolant level is satisfactory if it is between the full (“FULL” or “F”) and low (“LOW” or “L”) lines on the reservoir when the hybrid system is cold. Engine coolant reservoir

Reservoir cap “FULL” line “LOW” line If the level is on or below the “LOW” line, add coolant up to the “FULL” line. (→P. 566)

Power control unit coolant reservoir

ITO43P111

Reservoir cap “F” line “L” line If the level is on or below the “L” line, add coolant up to the “F” line. (→P. 566)

424

4-3. Do-it-yourself maintenance

■Coolant selection

Only use “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.

U.S.A.:

“Toyota Super Long Life Coolant” is a mixture of 50% cool- ant and 50% deionized water. (Minimum temperature: -31 °F [-35 °C])

Canada: “Toyota Super Long Life Coolant” is a mixture of 55% cool- ant and 45% deionized water. (Minimum temperature: -44 °F [-42 °C])

For more details about coolant, contact your Toyota dealer.

■If the coolant level drops within a short time of replenishing

Visually check the radiator, hoses, engine/power control unit coolant reser- voir caps, drain cock and water pump. If you cannot find a leak, have your Toyota dealer test the cap and check for leaks in the cooling system.

CAUTION

■When the hybrid system is hot

Do not remove the engine/power control unit coolant reservoir caps. The cooling system may be under pressure and may spray hot coolant if the cap is removed, causing serious injuries, such as burns.

425

4-3. Do-it-yourself maintenance

NOTICE

■When adding coolant

Coolant is neither plain water nor straight antifreeze. The correct mixture of water and antifreeze must be used to provide proper lubrication, corrosion protection and cooling. Be sure to read the antifreeze or coolant label.

■If you spill coolant

Be sure to wash it off with water to prevent it from damaging parts or paint.

Radiator and condenser

Check the radiator and condenser and clear away any foreign objects. If either of the above parts is extremely dirty or you are not sure of their condition, have your vehicle inspected by your Toyota dealer.

CAUTION

■When the hybrid system is hot

Do not touch the radiator or condenser as they may be hot and cause seri- ous injuries, such as burns.

426

Brake fluid

■ Checking fluid level

4-3. Do-it-yourself maintenance

The brake fluid level should be between the “MAX” and “MIN” lines on the tank.

■ Adding fluid

ITO43P151

Push the tab in and lift the cover off.

Make sure to check the fluid type and prepare the necessary item.

ITO43P152

Fluid type

Items

FMVSS No.116 DOT 3 or SAE J1703 brake fluid Clean funnel

427

4-3. Do-it-yourself maintenance

■Brake fluid can absorb moisture from the air

Excess moisture in the brake fluid can cause a dangerous loss of braking efficiency. Use only newly opened brake fluid.

CAUTION

■When filling the reservoir

Take care as brake fluid can harm your hands and 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.

NOTICE

■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 out or when the fluid level in the accumulator is high. If the reservoir needs frequent refilling, there may be a serious problem.

428

4-3. Do-it-yourself maintenance

Washer fluid

STEP 1

Open the lid.

STEP 2

STEP 3

Check the washer fluid level on the level gauge.

“NORMAL” “LOW”

If the washer fluid level is at “LOW”, add washer fluid.

429

4-3. Do-it-yourself maintenance

CAUTION

■When adding washer fluid

Do not add washer fluid when the hybrid system is hot or operating as washer fluid contains alcohol and may catch fire if spilled on the engine etc.

NOTICE

■Do not use any fluid other than washer fluid

Do not use soapy water or engine antifreeze instead of washer fluid. Doing so may cause streaking on the vehicle’s painted surfaces.

■Diluting washer fluid

Dilute washer fluid with water as necessary. Refer to the freezing temperatures listed on the label of the washer fluid bot- tle.

430

4-3. Do-it-yourself maintenance 12-volt battery

■ Location

The 12-volt battery is located in the right-hand side of lug- gage compartment.

■ Removing the 12-volt battery cover

STEP 1

STEP 2

Open the center deck board. (→P. 374) Remove the center auxiliary box. (→P. 376)

STEP 3

STEP 4

Remove the side deck board and 12-volt battery cover.

Remove the 12-volt battery maintenance cover.

431

4-3. Do-it-yourself maintenance

■ Exterior

Make sure that the 12-volt battery terminals are not corroded and that there are no loose connections, cracks, or loose clamps.

Terminals Hold-down clamp

■Before recharging

When recharging, the 12-volt battery produces hydrogen gas which is flam- mable and explosive. Therefore, observe the following precautions before recharging: ●If recharging with the 12-volt battery installed on the vehicle, be sure to

disconnect the ground cable.

●Make sure the power switch on the charger is off when connecting and

disconnecting the charger cables to the 12-volt battery.

432

4-3. Do-it-yourself maintenance

■After recharging/reconnecting the 12-volt battery

●Unlocking the doors using the smart key system may not be possible immediately after reconnecting the 12-volt battery. If this happens, use the wireless remote control or the mechanical key to lock/unlock the doors.

●Start the hybrid system with the “POWER” switch in ACCESSORY mode. The hybrid system may not start with the “POWER” switch turned off. However, the hybrid system will operate normally from the second attempt.

●The “POWER” switch mode is recorded by the vehicle. If the 12-volt bat- tery is reconnected, the vehicle will return the “POWER” switch mode to the status it was in before the 12-volt battery was disconnected. Make sure to turn off the power before disconnect the 12-volt battery. Take extra care when connecting the 12-volt battery if the “POWER” switch mode prior to discharge is unknown.

●Restart the hybrid system, depress the brake pedal, and confirm that it is

possible to shift into each shift position.

If the system will not start even after multiple attempts at all methods above, contact your Toyota dealer.

433

4-3. Do-it-yourself maintenance

CAUTION

■Chemicals in the 12-volt battery

The 12-volt 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 the 12-volt battery: ●Do not cause sparks by touching the 12-volt battery terminals with tools. ●Do not smoke or light a match near the 12-volt battery. ●Avoid contact with eyes, skin and clothes. ●Never inhale or swallow electrolyte. ●Wear protective safety glasses when working near the 12-volt battery. ●Keep children away from the 12-volt battery. ■Where to safely charge the 12-volt battery

Always charge the 12-volt battery in an open area. Do not charge the 12-volt battery in a garage or closed room where there is insufficient ventilation.

■How to recharge the 12-volt battery

Only perform a slow charge (5 A or less). The 12-volt battery may explode if charged at a quicker rate.

434

4-3. Do-it-yourself maintenance

CAUTION

■Emergency measures regarding electrolyte

●If electrolyte gets in your eyes

Flush your eyes with clean water for at least 15 minutes and get immedi- ate medical attention. If possible, continue to apply water with a sponge or cloth while traveling to the nearest medical facility.

●If electrolyte gets on your skin

Wash the affected area thoroughly. If you feel pain or burning, get medical attention immediately.

●If electrolyte gets on your clothes

It can soak through clothing on to your skin. Immediately take off the cloth- ing and follow the procedure above if necessary.

●If you accidentally swallow electrolyte

Drink a large quantity of water or milk. Get emergency medical attention immediately.

■When replacing the 12-volt battery

Use a 12-volt battery designed for this vehicle. Failure to do so may cause gas (hydrogen) to enter the passenger compartment, causing a fire or explo- sion. For replacement of the 12-volt battery, contact your Toyota dealer.

435

4-3. Do-it-yourself maintenance

CAUTION

■When disconnecting the 12-volt battery

Do not disconnect the negative (-) termi- nal on the body side as shown. The dis- connected negative (-) terminal may touch the positive (+) terminal, which may cause a short and result in death or seri- ous injury.

NOTICE

■When recharging the 12-volt battery

Never recharge the 12-volt battery while the hybrid system is operating. Also, be sure all accessories are turned off.

436

4-3. Do-it-yourself maintenance Tires

Replace or rotate tires in accordance with maintenance sched- ules and treadwear. ■ Checking tires

location of

New tread Treadwear indicator Worn tread The treadwear indicators is shown by the “TWI” or “∆” marks, etc., molded on the sidewall of each tire. Check spare tire condition and pressure if not rotated.

ITO43P115

Rotate the tires in the order shown.

To equalize tire wear and extend tire life, Toyota recom- mends that tire rotation is carried out at the same inter- val as tire inspection. Do not fail to initialize the tire pressure warning system after tire rotation.

■ Tire rotation

Front

437

4-3. Do-it-yourself maintenance

■ Tire pressure warning system

Your vehicle is equipped with a tire pressure warning system that uses tire pressure warning valves and transmitters to detect low tire inflation pressure before serious problems arise. (→P. 499) The compact spare tire is not equipped with a tire pressure warning valve and transmitter.

Installing tire pressure warning valves and transmitters

When replacing tires or wheels, tire pressure warning valves and transmitters must also be installed. When new tire pressure warning valves and transmitters are installed, new ID codes must be registered in the tire pressure warn- ing computer and the tire pressure warning system must be initial- ized. Have tire pressure warning valve and transmitter ID codes registered by your Toyota dealer. (→P. 440)

438

4-3. Do-it-yourself maintenance

Initializing the tire pressure warning system

■ The tire pressure warning system must be initialized in the fol-

lowing circumstances: ● When rotating front and rear tires which have different tire infla-

tion pressures

● When changing the tire size When the tire pressure warning system is initialized, the current tire inflation pressure is set as the benchmark pressure.

■ How to initialize the tire pressure warning system

STEP 1

STEP 2

STEP 3

Park the vehicle in a safe place and turn the “POWER” switch off. Initialization cannot be performed while the vehicle is moving. Adjust the tire inflation pressure to the specified cold tire infla- tion pressure level. (→P. 569) 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. Turn the “POWER” switch to ON mode.

439

4-3. Do-it-yourself maintenance

STEP 4

Press and hold the tire pressure warning reset switch until the tire pressure warning light blinks slowly 3 times.

STEP 5

Wait for a few minutes with the “POWER” switch in ON mode and then turn the “POWER” switch off.

Registering ID codes

The tire pressure warning valve and transmitter is equipped with a unique ID code. When replacing a tire pressure warning valve and transmitter, it is necessary to register the ID code. Have the ID code registered by your Toyota dealer.

440

4-3. Do-it-yourself maintenance

■When to replace your vehicle’s tires

Tires should be replaced if: ●You have tire damage such as cuts, splits, cracks deep enough to

expose the fabric, and bulges indicating internal damage.

●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 Toyota dealer.

■Replacing tires and wheels

If the ID code of the tire pressure warning valve and transmitter is not registered, the tire pressure warning system will not work properly. After driving for about 20 minutes, the tire pressure warning light blinks for 1 minute and stays on to indicate a system malfunction.

■Tire life

Any tire over 6 years old must be checked by a qualified technician even if it has seldom or never been used or damage is not obvious.

■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.

■Low profile tires (vehicles with 17-inch tires)

Generally, low profile tires will wear more rapidly and tire grip perfor- mance will be reduced on snowy and/or icy roads when compared to standard tires. Be sure to use snow tires or tire chains on snowy and/or icy roads and drive carefully at a speed appropriate for road and weather conditions.

441

4-3. Do-it-yourself maintenance

■Maximum load of tire

Check that the maximum load of the replacement 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.

For the GAWR, see the Certification Label. For the maximum load of the tire, see the load limit at maximum cold tire inflation pressure mentioned on the sidewall of the tire. (→P. 575)

■Tire types

●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.

●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.

●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, con- struction 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 restrictions. Snow tires should be installed on all wheels. (→P. 317)

442

4-3. Do-it-yourself maintenance

■Initializing the tire pressure warning system

Initialize the system with the tire inflation pressure adjusted to the speci- fied level.

■If the tread on snow tires wears down below 0.16 in. (4 mm)

The effectiveness of the tires as snow tires is lost.

■If you press the tire pressure warning reset switch accidentally

If initialization is performed, adjust the tire inflation pressure to the speci- fied level and initialize the tire pressure warning system again.

■When initialization of the tire pressure warning system has failed

Initialization can be completed in a few minutes. However, in the follow- ing 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 Toyota dealer. ●When operating the tire pressure warning reset switch, the tire pres-

sure warning light does not blink 3 times.

●After carrying out the initialization procedure, the tire pressure warn- ing light blinks for 1 minute then stays on after driving for 20 minutes.

443

4-3. Do-it-yourself maintenance

■Tire pressure warning system certification

For vehicles sold in the U.S.A. MODEL/FCC IDs: Transmitter: PAXPMV107J Receiver: HYQ13BDE 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. FCC WARNING: Changes or modifications not expressly approved by the party responsi- ble for compliance could void the user’s authority to operate the equip- ment. For vehicles sold in Canada 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.

444

4-3. Do-it-yourself maintenance

CAUTION

■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 an accident resulting in death or serious injury. ●Do not mix tires of different makes, models or tread patterns.

Also, do not mix tires of remarkably different treadwear.

●Do not use tire sizes other than those recommended by Toyota. ●Do not mix differently constructed tires (radial, bias-belted or bias-ply

tires).

●Do not mix summer, all season and snow tires. ●Do not use tires that have been used on another vehicle.

Do not use tires if you do not know how they were used previously.

■When initializing the tire pressure warning system

Do not operate the tire pressure warning reset switch without first adjust- ing 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 nor- mal.

445

4-3. Do-it-yourself maintenance

NOTICE

■Repairing or replacing tires, wheels, tire pressure warning valves,

transmitters and tire valve caps ●When removing or fitting the wheels, tires or the tire pressure warning valves and transmitters, contact your Toyota dealer as the tire pres- sure warning valves and transmitters may be damaged if not handled correctly.

●When replacing tire valve caps, do not use tire valve caps other than

those specified. The cap may become stuck.

■To avoid damage to the tire pressure warning valves and transmit-

ters When a tire is repaired with liquid sealants, the tire pressure warning valve and transmitter may not operate properly. If a liquid sealant is used, contact your Toyota dealer or other qualified service shop as soon as possible. Make sure to replace the tire pressure warning valve and transmitter when replacing the tire. (→P. 438)

■Driving on rough roads

Take particular care when driving on roads with loose surfaces or pot- holes. 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.

■Low profile tires (vehicles with 17-inch tires)

Low profile tires may cause greater damage than usual to the wheel when receiving impact from the road surface. Therefore pay attention to the following: ●Be sure to use proper tire inflation pressure. If tires are under-inflated,

they may be damaged more severely.

●Avoid pot holes, uneven pavement, curbs and other road hazards.

Failure to do so can lead to severe tire and wheel damage.

■If tire inflation pressure of each tire becomes low while driving Do not continue driving, or your tires and/or wheels may be ruined.

446

4-3. Do-it-yourself maintenance Tire inflation pressure

■ Tire inflation pressure

The recommended cold tire inflation pressure and tire size are displayed on the tire and loading information label. (→P. 569)

447

4-3. Do-it-yourself maintenance

■ Inspection and adjustment procedure

Tire valve Tire pressure gauge

ITO43P117

STEP 1

STEP 2

STEP 3

STEP 4

STEP 5

STEP 6

Remove the tire valve cap. Press the tip of the tire pressure gauge onto the tire valve. Read the pressure using the gauge gradations. If the tire inflation pressure is not at the recommended level, adjust the pressure. If you add too much air, press the center of the valve to deflate. After completing the tire inflation pressure measurement and adjustment, apply soapy water to the valve and check for leakage. Put the tire valve cap back on.

448

4-3. Do-it-yourself maintenance

■Tire inflation pressure check interval

You should check tire inflation pressure every two weeks, or at least once a month. Do not forget to check the spare.

■Effects of incorrect tire inflation pressure

Driving with incorrect tire inflation pressure may result in the following: ●Reduced fuel efficiency ●Reduced driving comfort and tire life ●Reduced safety ●Damage to the drive train If a tire needs frequent inflating, have it checked by your Toyota dealer.

■Instructions for checking tire inflation pressure

When checking tire inflation pressure, observe the following: ●Check only when the tires are cold.

If your vehicle has been parked for at least 3 hours or has not been driven for more than 1 mile or 1.5 km, you will get an accurate cold tire inflation pressure reading.

●Always use a tire pressure gauge.

The appearance of the tire can be misleading. In addition, tire infla- tion pressure that is even just a few pounds off can affect ride quality and handling.

●Do not reduce tire inflation pressure after driving. It is normal for tire

inflation pressure to be higher after driving. ●Never exceed the vehicle capacity weight.

Passengers and luggage weight should be placed so that the vehicle is balanced.

449

4-3. Do-it-yourself maintenance

CAUTION

■Proper inflation is critical to save tire performance

Keep your tires properly inflated. Otherwise, the following conditions may occur and result in an accident causing death or serious injury: ●Excessive wear ●Uneven wear ●Poor handling ●Possibility of blowouts resulting from overheated tires ●Poor sealing of the tire bead ●Wheel deformation and/or tire separation ●A greater possibility of tire damage from road hazards

NOTICE

■When inspecting and adjusting tire inflation pressure

Be sure to put the tire valve caps back on. 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 are lost, replace them as soon as possible.

450

4-3. Do-it-yourself maintenance Wheels

If a wheel is bent, cracked or heavily corroded, it should be replaced. Otherwise, the tire may separate from the wheel or cause a loss of handling control. ■ 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 inset*. Replacement wheels are available at your Toyota dealer. *: Conventionally referred to as “offset”. Toyota does not recommend using the following: ● Wheels of different sizes or types ● Used wheels ● Bent wheels that have been straightened

■ Aluminum wheel precautions

● Use only Toyota wheel nuts and wrenches designed for use

with your aluminum wheels.

● 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 Toyota genuine balance weights or equivalent and a

plastic or rubber hammer when balancing your wheels.

451

4-3. Do-it-yourself maintenance

■When replacing wheels

The wheels of your vehicle are equipped with tire pressure warning valves and transmitters that allow the tire pressure warning system to provide advance warning in the event of a loss in tire inflation pressure. Whenever wheels are replaced, tire pressure warning valves and trans- mitters must be installed. (→P. 438)

CAUTION

■When replacing wheels

●Do not use wheels that are a different size from those recommended in

the Owner’s Manual, as this may result in a loss of handling control.

●Never use an inner tube in a leaking wheel which is designed for a tubeless tire. Doing so may result in an accident, causing death or seri- ous injury.

■When installing the wheel nuts

facing

tapered ends

●Be sure to install the wheel nuts with the inward. Installing the nuts with the tapered ends facing outward can cause the wheel to break and eventually cause the wheel to come off while driving, which could lead to an accident resulting in death or serious injury.

Tapered portion

ITI41P007

●Never use oil or grease on the wheel bolts or wheel nuts.

Oil and grease may cause the wheel nuts to be excessively tightened, leading to bolt or disc wheel damage. In addition, the oil or grease can cause the wheel nuts to loosen and the wheel may fall off, causing an accident and resulting in death or serious injury. Remove any oil or grease from the wheel bolts or wheel nuts.

452

4-3. Do-it-yourself maintenance

CAUTION

■Use of defective wheels prohibited

Do not use cracked or deformed wheels. Doing so could cause the tire to leak air during driving, possibly causing an accident.

NOTICE

■Replacing tire pressure warning valves and transmitters

●Because tire repair or replacement may affect the tire pressure warn- ing valves and transmitters, make sure to have tires serviced by your Toyota dealer or other qualified service shop. In addition, make sure to purchase your tire pressure warning valves and transmitters at your Toyota dealer.

●Ensure that only genuine Toyota wheels are used on your vehicle.

Tire pressure warning valves and transmitters may not work properly with non-genuine wheels.

453

4-3. Do-it-yourself maintenance Electronic key battery

Replace the battery with a new one if it is depleted. ■ You will need the following items:

● Flathead screwdriver ● Lithium battery CR1632

■ Replacing the battery

STEP 1

Take out the mechanical key.

STEP 2

STEP 3

Remove the cover.

To prevent damage, cover the tip of the screwdriver with a rag.

Remove the depleted battery. Insert a new battery with the “+” terminal facing up.

STEP 4

When installing, reverse the steps listed.

ITO43P194

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4-3. Do-it-yourself maintenance

■Use a CR1632 lithium battery

●Batteries can be purchased at your Toyota dealer, local electrical appli-

ance shops or camera stores.

●Replace only with the same or equivalent type recommended by the

manufacturer.

●Dispose of used batteries according to local laws.

■If the electronic key battery is depleted

The following symptoms may occur: ●The smart key system and wireless remote control will not function prop-

erly.

●The operational range will be reduced.

CAUTION

■Removed battery and other parts

Keep away from children. These parts are small and if swallowed by a child, they can cause choking. Failure to do so could result in death or serious injury.

NOTICE

■For normal operation after replacing the battery

Observe the following precautions to prevent accidents: ●Always work with dry hands.

Moisture may cause the battery to rust.

●Do not touch or move any other component inside the remote control. ●Do not bend either of the battery terminals.

455

4-3. Do-it-yourself maintenance Checking and replacing fuses

If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary.

STEP 1

STEP 2

Turn the “POWER” switch off. Vehicles with Solar Ventilation System: Turn the Solar Ventilation System off and make sure not to operate the Remote Air Condi- tioning System. Open the fuse box cover.

Engine compartment

Push the tab in and lift the lid off.

When closing, first hook the lid onto the two rear tabs.

Left side instrument panel

ITO43P127

Remove the lid.

STEP 3

After a system failure, see “Fuse layout and amperage rat- ings” (→P. 459) for details about which fuse to check.

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4-3. Do-it-yourself maintenance

STEP 4

Remove the fuse.

type A

Only removed using tool.

fuse can be the pullout

STEP 5

Check if the fuse is blown.

Type A

ITY42C012

Normal fuse Blown fuse Replace the blown fuse with a new fuse of an appropriate amperage rating. The amper- age rating can be found on the fuse box lid.

457

Normal fuse Blown fuse Replace the blown fuse with a new fuse of an appropriate amperage rating. The amper- age rating can be found on the fuse box lid.

Normal fuse Blown fuse Replace the blown fuse with a new fuse of an appropriate amperage rating. The amper- age rating can be found on the fuse box lid.

ITO43P161

4-3. Do-it-yourself maintenance

Type B

Type C

458

4-3. Do-it-yourself maintenance

Fuse layout and amperage ratings

■ Engine compartment

FUSE

HTR RDI CDS S-HORN ENG W/P ABS MAIN NO.2
H-LP CLN

P-CON MTR

AMP NO.1
IGCT

10
11 DC/DC-S

Ampere

Circuit

50A 30A 30A 10A 30A

Air conditioning system Electric cooling fans Electric cooling fans No circuit Cooling system

7.5A

Anti-lock brake system