2012 Toyota Prius Owners Manual

30A

30A

30A 30A 5A

Headlight cleaner P position control system, trans- mission Audio system PCU, IGCT NO.2, IGCT NO.3
Inverter and converter P position control system, P posi- tion switch

459

12 P CON MAIN

7.5A

4-3. Do-it-yourself maintenance

FUSE

Ampere

Circuit

13 AM2
14 ECU-B2
15 MAYDAY 16 ECU-B3
17 TURN & HAZ

18 ETCS

19 ABS MAIN

NO.1

20 H-LP LH LO

21 P/I 2

22 ABS MTR 1
23 ABS MTR 2

24 H-LP HI MAIN

25 DRL 26 AMP NO.2
27 P/I 1
28 EPS 29 H-LP RH LO 30 PCU

7.5A 7.5A 10A 10A 10A

10A

20A

15A

40A

30A 30A

20A

7.5A 30A 60A 60A 15A 10A

31

IGCT NO.2

10A

460

Power management system Smart key system, hybrid system MAYDAY Air conditioning system Turn signal lights Multiport fuel injection system/ sequential multiport fuel injection system

Anti-lock brake system

Left-hand headlight (low beam) P position control system, horn, headlight low beams, back-up lights Anti-lock brake system Anti-lock brake system Headlight high beams, daytime running lights Daytime running lights Audio system, navigation system IG2, EFI MAIN, BATT FAN Electric power steering Right-hand headlight (low beam) Inverter and converter Hybrid system, P position control system, power management sys- tem, multiport fuel injection sys- tem/sequential multiport fuel injection system

4-3. Do-it-yourself maintenance

FUSE 32 MIR HTR 33 RAD NO.1

34 DOME

35 ECU-B

36 H-LP LH HI 37 H-LP RH HI

38 EFI NO.2

IGCT NO.3

39
40 SPARE 41 SPARE 42 SPARE

43 EFI MAIN

44 BATT FAN

45

IG2

Ampere

Circuit

10A 15A

10A

7.5A

10A 10A

10A

10A 30A 10A 7.5A

20A

10A

20A

Outside rear view mirror defoggers Audio system, navigation system Door courtesy lights, luggage compartment light, personal light, interior light, foot lights, vanity lights, inside rear view mirror, garage door opener Smart key system, personal lights, gauges and meters, emergency flashers Left-hand headlight (high beam) Right-hand headlight (high beam) Multiport fuel injection system/ sequential multiport fuel injection system Cooling system Spare fuse Spare fuse Spare fuse Multiport fuel injection system/ sequential multiport fuel injection system, cooling system, EFI NO.2
Battery cooling fan Multiport fuel injection system/ sequential multiport fuel injection system, MET, IGN, power man- agement system

461

4-3. Do-it-yourself maintenance

■ Left side instrument panel

2 3

5 6

9 10

11

12

13

14

15 16

17 18

19

20 21

22

23 24 25 26

27 28 29 30

FUSE

CIG

Ampere

15A

ECU-ACC

10A

PWR OUTLET SEAT HTR FR SEAT HTR FL DOOR NO.1
PSB PWR SEAT FR DBL LOCK

10 FR FOG 11 PWR SEAT FL 12 OBD 13 RR FOG

14 STOP

462

15A 10A 10A 25A 30A 30A 25A 7.5A 30A 7.5A 7.5A

10A

ITO43P133

Circuit

Power outlets Multiplex communication system, outside rear view mirrors, driver support system, audio system, navigation system, advanced parking guidance system, head-up display Power outlets Seat heater Seat heater Power door lock system Pre-Collision System Front passenger’s seat No circuit Front fog lights Driver’s seat On-board diagnosis system No circuit Stop lights, high mounted stop- light, brake system, driver support system, vehicle proximity notifica- tion system

4-3. Do-it-yourself maintenance

FUSE

Ampere

Circuit

15 P FR DOOR 16 D FR DOOR 17 DOOR RR 18 DOOR RL 19 S/ROOF

20 ECU-IG NO.1

25A 25A 25A 25A 30A

10A

21 ECU-IG NO.2

10A

22 GAUGE

23 A/C

24 WASHER

10A

10A

15A

Power windows Power windows Power windows Power windows Moon roof Electric cooling fans, multiplex communication system, vehicle proximity notification system Driver support system, Pre-Colli- sion System, LKA system, inside rear view mirror, garage door opener, yaw rate & G sensor, brake system, electric power steering, navigation system, moon roof, tire pressure warning system, seat belt pretensioners, audio sys- tem, emergency flashers, turn sig- nal lights, windshield wipers, headlight cleaner Headlight leveling system, gauges and meters, emergency flashers, turn signal lights Air conditioning system, Solar Ventilation System, Remote Air Conditioning System Windshield washer

463

4-3. Do-it-yourself maintenance

FUSE 25 RR WIP 26 WIP 27 MET

Ampere

20A 30A 7.5A

28

IGN

10A

29 PANEL

10A

30 TAIL

10A

Circuit

Rear window wiper and washer Windshield wipers Gauges and meters Brake system, driver support sys- tem, multiport fuel injection sys- tem/sequential multiport fuel injection system, SRS airbag sys- tem, front passenger occupant classification system (ECU and sensors), power management sys- tem, smart key system, front pas- senger’s seat belt reminder light Air conditioning system, personal light, transmission, P position switch, navigation system, Solar Ventilation System, Remote Air Conditioning System, advanced parking guidance system, head- light cleaner, front passenger’s seat belt reminder light, headlight leveling system, glove box light, clock, audio system, MPH or km/h switch Headlight leveling system, park- ing lights, tail lights, license plate lights, front fog lights, side marker lights

464

4-3. Do-it-yourself maintenance

■After a fuse is replaced

●If the lights do not turn on even after the fuse has been replaced, a bulb

may need replacement. (→P. 467)

●If the replaced fuse blows again, have the vehicle inspected by your

Toyota dealer.

■If there is an overload in a circuit

The fuses are designed to blow, protecting the wiring harness from damage.

■When replacing light bulbs

Toyota recommends that you use genuine Toyota products designed for this vehicle. Because certain bulbs are connected to circuits designed to prevent overload, non-genuine parts or parts not designed for this vehicle may be unusable.

CAUTION

■To prevent system breakdowns and vehicle fire

Observe the following precautions. Failure to do so may cause damage, and possibly a fire or injury. ●Never use a fuse of a higher amperage rating than that indicated, or use

any other object in place of a fuse.

●Always use a genuine Toyota fuse or equivalent.

Never replace a fuse with a wire, even as a temporary fix. This can cause extensive damage or even fire.

●Do not modify the fuses or fuse boxes. ■Fuse box near the power control unit

Never check or replace the fuses as there are high voltage parts and wiring near the fuse box. Doing so may cause electric shock, resulting in death or serious injury.

465

4-3. Do-it-yourself maintenance

NOTICE

■Before replacing fuses

Have the cause of electrical overload determined and repaired by your Toyota dealer as soon as possible.

466

4-3. Do-it-yourself maintenance Light bulbs

You may replace the following bulbs by yourself. The difficulty level of replacement varies depending on the bulb. As there is a danger that components may be damaged, we recommend that replacement is carried out by your Toyota dealer. ■ Preparing for light bulb replacement

Check the wattage of the light bulb to be replaced. (→P. 570)

■ Front bulb locations

Parking light (halogen headlights)

Headlight high beam (including daytime running lights for Canada)

Fog light

Headlight low beam (halogen headlights)

Front side marker light

Front turn signal light

467

4-3. Do-it-yourself maintenance

■ Rear bulb locations

Rear turn signal light

Back-up light

License plate lights

Replacing light bulbs

■ Headlight low beams (halogen headlights)

STEP 1

Turn the bulb base counterclock- wise.

468

STEP 2

STEP 3

STEP 4

4-3. Do-it-yourself maintenance

Unplug pressing the lock release.

the connector while

ITO43P163

Replace the light bulb, and install the bulb base.

Align the 3 tabs on the light bulb with the mounting, and insert.

Turn and secure the bulb base.

Shake the bulb base gently to check that it is not loose, turn the headlights on once and visually confirm that no light is leaking through the mounting.

469

4-3. Do-it-yourself maintenance

■ Headlight high beams (including daytime running lights for

Canada)

STEP 1

Turn the bulb base counterclockwise.

Vehicles with halogen headlights

Vehicles with LED headlights

STEP 2

Unplug pressing the lock release.

the connector while

ITO43P165

470

STEP 3

STEP 4

4-3. Do-it-yourself maintenance

Replace the light bulb, and install the bulb base.

Align the 3 tabs on the light bulb with the mounting, and insert.

Turn and secure the bulb base.

Shake the bulb base gently to check that it is not loose, turn the headlights on once and visually confirm that no light is leaking through the mounting.

471

4-3. Do-it-yourself maintenance

■ Parking lights (halogen headlights)

STEP 1

Turn the bulb base counterclock- wise.

STEP 2

Remove the light bulb.

STEP 3

When installing, reverse the steps listed.

ITO43P167

472

4-3. Do-it-yourself maintenance

■ Front side marker lights

STEP 1

Turn the bulb base counterclockwise.

Vehicles with halogen headlights

Vehicles with LED headlights

STEP 2

Remove the light bulb.

STEP 3

When installing, reverse the steps listed.

ITO43P167

473

4-3. Do-it-yourself maintenance

■ Fog lights (if equipped)

STEP 1

Remove the engine under cover bolt and clip and pull down the engine under cover.

Unplug pressing the lock release.

the connector while

Turn the bulb base counterclock- wise.

STEP 2

STEP 3

474

4-3. Do-it-yourself maintenance

STEP 4

When installing, reverse the steps listed. After installing the bulb base, shake the bulb base gently to check that it is not loose.

Insert the clip.

475

4-3. Do-it-yourself maintenance

■ Front turn signal lights

STEP 1

Remove the engine under cover bolt and clip and pull down the engine under cover. (→P. 474)

For the U.S.A.

STEP 2

Turn the bulb base counterclock- wise.

STEP 3

Remove the light bulb.

476

4-3. Do-it-yourself maintenance

For Canada

STEP 2

s Turn the bulb base counterclock-

wise.

STEP 3

Remove the light bulb.

STEP 4

When installing, reverse the steps listed.

ITO43P144

Insert the clip.

477

4-3. Do-it-yourself maintenance

■ Rear turn signal lights and back-up lights

STEP 1

STEP 2

STEP 3

Open the back door and remove the cover.

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

Turn the bulb base counterclock- wise.

Rear turn signal light Back-up light

Remove the light bulb. Rear turn signal light Back-up light

STEP 4

When installing, reverse the steps listed.

ITO43P147

478

■ License plate lights

STEP 1

4-3. Do-it-yourself maintenance

Open the back door and remove the cover.

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

STEP 2

Turn the bulb base counterclock- wise.

STEP 3

Remove the light bulb.

ITO43P149

STEP 4

When installing, reverse the steps listed.

ITO43P150

479

4-3. Do-it-yourself maintenance

■ Replacing the following bulbs

If any of the lights listed below has burnt out, have it replaced by your Toyota dealer. ● Headlight low beams (LED headlights) ● Parking lights (LED headlights) ● Stop lights ● Tail lights ● High mounted stoplight ● Daytime running lights (except for Canada)

■LED lights

The headlight low beams (LED headlights), parking lights (LED headlights), stop lights, tail lights, high mounted stoplight and daytime running lights (except for Canada) consist of a number of LEDs. If any of the LEDs burn out, take your vehicle to your Toyota dealer to have the light replaced.

■Condensation build-up on the inside of the lens

Contact your Toyota dealer for more information in the following situations. Temporary condensation build-up on the inside of the headlight lens does not indicate a malfunction. ●Large drops of water have built up on the inside of the lens. ●Water has built up inside the headlight.

■When replacing light bulbs

→P. 465

480

4-3. Do-it-yourself maintenance

CAUTION

■Replacing light bulbs

●Be sure to stop the hybrid system and turn off the lights. Do not attempt to

replace the bulb immediately after turning off the lights. The bulbs become very hot and may cause burns.

●Do not touch the glass portion of the light bulb with bare hands. Hold the

bulb by the plastic or metal portion. If the bulb is scratched or dropped, it may blow out or crack.

●Fully install light bulbs and any parts used to secure them. Failure to do so may result in heat damage, fire, or water entering the headlight unit. This may damage the headlights or cause condensation to build up on the lens.

■To prevent damage or fire

Make sure bulbs are fully seated and locked.

481

4-3. Do-it-yourself maintenance

482

5-1. Essential information Emergency flashers

The emergency flashers are used to warn other drivers when the vehicle has to be stopped in the road due to a breakdown, etc.

Press the switch.

All the turn signal lights will flash. To turn them off, press the switch once again.

■Emergency flashers

If the emergency flashers are used for a long time while the hybrid system is not operating (while the “READY” indicator is not illuminated), the 12-volt battery may discharge.

484

5-1. Essential information If your vehicle needs to be towed

If towing is necessary, we recommend having your vehicle towed by your Toyota dealer or a commercial towing service, using a lift-type truck or flat bed truck. Use a safety chain system for all towing, and abide by all state/pro- vincial and local laws.

Before towing

The following may indicate a problem with your hybrid transmission. Contact your Toyota dealer before towing. ● The hybrid system is operating but the vehicle will not move. ● The vehicle makes an abnormal sound. If there is a malfunction in the P position control system, the smart key system or the immobilizer system, or if the 12-volt battery is dis- charged, the vehicle cannot be towed with the front wheels on the ground, as the front wheels may be locked. In this case, transport the vehicle with both front wheels or all four wheels lifted.

485

If a tow truck is not available in an emergency, your vehicle may be temporarily towed using a cable or chain secured to the emergency towing eyelet(s). This should only be attempted on hard surfaced roads for short distances at under 18 mph (30 km/h). A driver must be in the vehicle to steer and operate the brakes. The vehicle’s wheels, drive train, axles, steering and brakes must be in good condition.

5-1. Essential information

Emergency towing

486

Installing towing eyelets

STEP 1

STEP 2

STEP 3

5-1. Essential information

Remove the eyelet cover using a flathead screwdriver.

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

Insert the towing eyelet into the hole and tighten partially by hand.

Tighten down the towing eyelet securely using a wheel nut wrench.

487

5-1. Essential information

Towing with a sling-type truck

Do not tow with a sling-type truck to prevent body damage.

ITO51P103

Towing with a wheel-lift type truck

From the front

Release the parking brake.

From the rear

ITO51P104

Use a towing dolly under the front wheels.

ITO51P105

488

5-1. Essential information

If you use chains or cables to tie down your vehicle, the angles shaded in black must be 45°. Do not overly tighten the tie downs or the vehicle may be damaged.

Using a flat bed truck

ITO51P106

■Before emergency towing

STEP 1

Turn the “POWER” switch to ON mode. Do not turn the “POWER” switch to ACCESSORY mode. Shift the shift position to N. Release the parking brake. ■Emergency towing eyelet location

STEP 2

STEP 3

→P. 523

489

5-1. Essential information

CAUTION

■Caution while towing

●Use extreme caution when towing the vehicle.

Avoid sudden starts or erratic driving maneuvers which place excessive stress on the emergency towing eyelets and the cables or chains. Always be cautious of the surroundings and other vehicles while towing.

●Do not turn the “POWER” switch off.

This may lead to an accident as the front wheels will be locked by the parking lock.

●If the hybrid system is off, the power assist for the brakes and steering will

not function, making steering and braking more difficult.

■Installing towing eyelets to the vehicle

Make sure that towing eyelets are installed securely. If not securely installed, towing eyelets may come loose during towing. This may lead to accidents that cause serious injury or even death.

490

5-1. Essential information

NOTICE

■To prevent damaging the vehicle

When raising the vehicle, ensure adequate ground clearance for towing at the opposite end of the raised vehicle. Without adequate clearance, the vehicle could be damaged while being towed.

■To prevent causing serious damage to the hybrid transmission when

towing using a wheel-lift type truck Never tow this vehicle from the front with the rear wheels on the ground.

■To prevent body damage when towing with a sling-type truck

Do not tow with a sling-type truck, either from the front or rear.

■To prevent causing serious damage to the hybrid transmission in

emergency towing Never tow a vehicle from the rear with four wheels on the ground. This may cause serious damage to the hybrid transmission.

491

5-1. Essential information If you think something is wrong

If you notice any of the following symptoms, your vehicle probably needs adjustment or repair. Contact your Toyota dealer as soon as possible. ■ Visible symptoms

● Fluid leaks under the vehicle

(Water dripping from the air conditioning after use is normal.)

● Flat-looking tires or uneven tire wear ● High engine coolant temperature warning light flashes or

comes on

■ Audible symptoms

● Changes in exhaust sound ● Excessive tire squeal when cornering ● Strange noises related to the suspension system ● Pinging or other noises related to the hybrid system

■ Operational symptoms

● Engine missing, stumbling or running roughly ● Appreciable loss of power ● Vehicle pulls heavily to one side when braking ● Vehicle pulls heavily to one side when driving on a level road ● Loss of brake effectiveness, spongy feeling, pedal almost

touches the floor

492

5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer sounds

Calmly perform the following actions if any of the warning lights comes on or flashes. If a light comes on or flashes, but then goes off, this does not necessarily indicate a malfunction in the system. However, if this continues to occur, have the vehicle inspected by your Toyota dealer.

Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.

The following warning indicates a possible problem in the brake sys- tem. Immediately stop the vehicle in a safe place and contact your Toyota dealer.

Warning light

Warning light/Details

(U.S.A.)

(Canada)

Brake system warning light and warning buzzer (red indicator)* • Low brake fluid • Malfunction in the brake system This light also comes on when the parking brake is not released. If the light turns off after the parking brake is fully released, the system is operating normally.

*: Parking brake engaged warning buzzer:

A buzzer will sound if the vehicle is driven at a speed of approximately 3 mph (5 km/h) or more.

493

5-2. Steps to take in an emergency

Stop the vehicle immediately.

The following warning indicates the possibility of damage to the vehi- cle that may lead to an accident. Immediately stop the vehicle in a safe place and contact your Toyota dealer.

Warning light

Warning light/Details

Charging system warning light Indicates a malfunction in the vehicle’s charging system

High coolant temperature warning light Indicates that the coolant temperature is too high Changes from a flashing to a solid light when the engine coolant temperature increases.

494

5-2. Steps to take in an emergency

Have the vehicle inspected by your Toyota dealer immediately.

Failure to investigate the cause of the following warnings may lead to the system operating abnormally and possibly cause an accident. Have the vehicle inspected by your Toyota dealer immediately.

Warning light

Warning light/Details

Malfunction indicator lamp Indicates a malfunction in: • The hybrid system; • The electronic engine control system; or • The electronic throttle control system

(U.S.A.)

(Canada)

SRS warning light Indicates a malfunction in: • The SRS airbag system; • The front passenger occupant classification system; or • The seat belt pretensioner system

ABS warning light Indicates a malfunction in: • The ABS; or • The brake assist system

(U.S.A.)

(Canada)

Electric power steering system warning light (warn- ing buzzer) Indicates a malfunction in the EPS system

495

5-2. Steps to take in an emergency

Warning light

Warning light/Details

Pre-collision system warning light Indicates a malfunction in the pre-collision system The warning light will operate as follows, even when the system is not malfunctioning: • The light will flash quickly when the system is operating. (→P. 303) • The light will turn on when the pre-collision braking is disabled. (→P. 304) • The light will turn on when the system cannot tempo- rarily be used. (→P. 512)

Slip indicator light Indicates a malfunction in: • VSC; • TRAC; or • Hill-start assist control Flashes when the above systems and/or ABS are oper- ating. (→P. 297)

LKA indicator light Indicates a malfunction in the LKA. (→P. 286)

Brake system warning light (yellow indicator) Indicates a malfunction in: • The regenerative braking system; or • The electronically controlled brake system

(Flashes)

(If equipped)

(Turns on)

(Flashes)

(If equipped)

496

5-2. Steps to take in an emergency

Warning light

Warning light/Details

(If equipped)

(Flashes)

(If equipped)

(Flashes)

(If equipped)

Automatic headlight leveling system warning light Indicates a malfunction in the automatic headlight level- ing system

Cruise control indicator Indicates a malfunction in the cruise control/dynamic radar cruise control

Radar cruise control indicator Indicates a malfunction in the dynamic radar cruise con- trol

497

5-2. Steps to take in an emergency

Follow the correction procedures.

After taking the specified steps to correct the suspected problem, check that the warning light goes off.

Correction procedure

Check that all the doors are closed.

Refuel the vehicle.

Fasten the seat belt.

Fasten the seat belt.

Warning light

Warning light/Details

Open door warning light (warning buzzer)*1
Indicates that a door is not fully closed Low fuel level warning light Indicates remaining fuel is approximately 1.6 gal. (6.0 L, 1.3 Imp.gal.) or less Driver’s seat belt reminder light (warning buzzer)*2
Warns the driver to fasten his/her seat belts. Front passenger’s seat belt reminder light (warning buzzer)*2
Warns the front passen- ger to fasten his/her seat belt.

(On the instrument panel)

498

5-2. Steps to take in an emergency

Warning light

Warning light/Details

Correction procedure

Tire pressure warning light

Adjust the tire inflation pressure to the specified level. The light will turn off after a few minutes. In case the light does not turn off even if the tire infla- tion pressure is adjusted, have the system checked by your Toyota dealer.

Have the system checked by your Toyota dealer.

→P. 507

When the light comes on: Low tire inflation pres- sure such as • Natural causes (→P. 501) • Flat tire (→P. 523)

When the light comes on after blinking for 1 minute: Malfunction in the tire pressure warning sys- tem (→P. 503) Master warning light The warning light comes on and flashes to indicate that the master warning system has detected a malfunction.

499

5-2. Steps to take in an emergency

*1: Open door warning buzzer:

The open door warning buzzer sounds to alert one or more of the doors is not fully closed (with the vehicle having reached a speed of 3 mph [5 km/h]).

*2: Seat belt warning buzzer:

The driver’s and front passenger’s seat belts reminder sounds to alert the driver and front passenger that his or her seat belt is not fastened. The buzzer sounds intermittently for 10 seconds after the vehicle has reached a speed of at least 12 mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will sound in a different tone for 20 more seconds.

■SRS warning light

This warning light system monitors the airbag sensor assembly, front impact sensors, side impact sensors (front), side impact sensors (rear), driver’s seat position sensor, driver’s seat belt buckle switch, front passenger occupant classification system (ECU and sensors), “AIR BAG ON” indicator light, “AIR BAG OFF” indicator light, front passenger’s seat belt buckle switch, seat belt pretensioner assemblies, airbags, interconnecting wiring and power sources. (→P. 140)

■Front passenger occupant classification system (ECU and sensors),

seat belt reminder and warning buzzer ●If luggage is placed on the front passenger seat, the front passenger occupant classification system (ECU and sensors) may cause the warn- ing light to flash and the warning buzzer to sound even if a passenger is not sitting in the seat.

●If a cushion is placed on the seat, the front passenger occupant classifi- cation system (ECU and sensors) may not detect a passenger, and the warning light may not operate properly.

500

5-2. Steps to take in an emergency

■Electric power steering system warning light

When the 12-volt battery charge becomes insufficient or the voltage tempo- rarily drops, the electric power steering system warning light may come on.

■If the malfunction indicator lamp comes on while driving

First check the following: ●Is the fuel tank cap loose?

If it is, tighten it securely.

The malfunction indicator lamp will go off after several driving trips. If the malfunction indicator lamp does not go off even after several trips, con- tact your Toyota dealer as soon as possible.

■When the tire pressure warning light comes on

Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire pressure warning reset switch will not turn off the tire pressure warning light.

■The tire pressure warning light may come on due to natural causes The tire pressure warning light may come on due to natural causes such as natural air leaks and tire inflation pressure changes caused by tem- perature. In this case, adjusting the tire inflation pressure will turn off the warning light (after a few minutes).

■When a tire is replaced with a spare tire

The compact spare tire is not equipped with a tire pressure warning valve and transmitter. If a tire goes flat, the tire pressure warning light will not turn off even though the flat tire has been replaced with the spare tire. Replace the spare tire with the repaired tire and adjust the tire infla- tion pressure. The tire pressure warning light will go off after a few min- utes.

501

5-2. Steps to take in an emergency

■If the tire pressure warning system is not functioning

The tire pressure warning system will be disabled in the following condi- tions: (When the condition becomes normal, the system will work properly.) ●If tires not equipped with tire pressure warning valves and transmit-

ters are used

●If the ID code on the tire pressure warning valves and transmitters is

not registered in the tire pressure warning computer

●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or

higher

The tire pressure warning system may be disabled in the following condi- tions: (When the condition becomes normal, the system will work properly.) ●If electronic devices or facilities using similar radio wave frequencies

are nearby

●If a radio set at a similar frequency is in use in the vehicle ●If a window tint that affects the radio wave signals is installed ●If there is a lot of snow or ice on the vehicle, particularly around the

wheels or wheel housings

●If non-genuine Toyota wheels are used (Even if you use Toyota wheels, the tire pressure warning system may not work properly with some types of tires.) ●If tire chains are used

502

5-2. Steps to take in an emergency

■If the tire pressure warning light frequently comes on after blinking

for 1 minute If the tire pressure warning light frequently comes on after blinking for 1
minute when the “POWER” switch is turned to ON mode, have it checked by your Toyota dealer.

■Customization

The vehicle speed linked seat belt reminder buzzer can be disabled. (Customizable features →P. 590) However, Toyota recommends that the seat belt reminder buzzer be operational to alert the driver and front passen- ger when seat belts are not fastened.

CAUTION

■If both the ABS and the brake system warning lights remain on

Stop your vehicle in a safe place immediately and contact your Toyota dealer. The vehicle will become extremely unstable during braking, and the ABS system may fail, which could cause an accident resulting in death or serious injury.

■When the electric power steering system warning light comes on

The steering wheel may become extremely heavy. If the steering wheel becomes heavier than usual when operating, hold firmly and operate using more force than usual.

503

5-2. Steps to take in an emergency

CAUTION

■If the tire pressure warning light comes on

Be sure to observe the following precautions. Failure to do so could cause a loss of vehicle control and result in death or serious injury. ●Stop your vehicle in a safe place as soon as possible. Adjust the tire

inflation pressure immediately.

●If the tire pressure warning light comes on even after tire inflation pres- sure adjustment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change it with the spare tire and have the flat tire repaired by the nearest Toyota dealer.

●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,

you could lose control of the steering wheel or the brakes.

■If a blowout or sudden air leakage should occur

The tire pressure warning system may not activate immediately.

■Maintenance of the tires

Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation pressure label (tire and load information label). (If your vehicle has tires of a differ- ent size than the size indicated on the vehicle placard or tire inflation pressure label [tire and load information label], you should determine the proper tire inflation pressure for those tires.)

504

5-2. Steps to take in an emergency

CAUTION

As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS-tire pressure warning system) that illuminates a low tire pressure telltale (tire pressure warning light) when one or more of your tires is significantly under-inflated. Accordingly, when the low tire pressure telltale (tire pressure warning light) illumi- nates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly under- inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping ability. Please note that the TPMS (tire pressure warning system) is not a sub- stitute for proper tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even if under-inflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale (tire pressure warning light). Your vehicle has also been equipped with a TPMS (tire pressure warning system) malfunction indicator to indicate when the system is not operat- ing properly. The TPMS (tire pressure warning system) malfunction indi- cator is combined with the low tire pressure telltale (tire pressure warning light). When the system detects a malfunction, the telltale will flash for approximately one minute and then remain continuously illumi- nated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illumi- nated, the system may not be able to detect or signal low tire pressure as intended.

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CAUTION

TPMS (tire pressure warning system) malfunctions may occur for a vari- ety of reasons, including the installation of replacement or alternate tires or wheels on the vehicle that prevent the TPMS (tire pressure warning system) from functioning properly. Always check the TPMS (tire pres- sure warning system) malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alter- nate tires and wheels allow the TPMS (tire pressure warning system) to continue to function properly.

NOTICE

■Precaution when installing a different tire

When a tire of a different specification or maker is installed, the tire pres- sure warning system may not operate properly.

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5-2. Steps to take in an emergency If a warning message is displayed

If a warning is shown on the multi-information display, stay calm and perform the following actions:

Master warning light Multi-information display The master warning light also comes on or flashes in order to indicate that a message is cur- rently being displayed on the multi-information display.

If any of the warning light turns on again after performing the fol- lowing actions, contact your Toyota dealer.

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Stop the vehicle immediately.

A buzzer sounds and a warning message is shown on the multi-infor- mation display. The following warnings indicate the possibility of dam- age to the vehicle that may lead to an accident. Immediately stop the vehicle in a safe place and contact your Toyota dealer.

Warning message

Details

Indicates an abnormal engine oil pressure. The warning light may turn on if the engine oil pres- sure is too low.

Indicates a malfunction in the hybrid system.

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5-2. Steps to take in an emergency

Have the vehicle inspected immediately.

Failure to investigate the cause of the following warnings may lead to the system operating abnormally and possibly cause an accident. Have the vehicle inspected by your Toyota dealer immediately.

Warning message

Details

Indicates a malfunction in the LED headlight system.

(If equipped)

Indicates a malfunction in the P position control sys- tem. In this situation, there is a possibility that the parking lock mechanism will not work. When parking, park the vehicle on a flat surface and apply the parking brake securely. Also, it may not be possible to turn the “POWER” switch off. If this hap- pens, applying the parking brake will enable the switch to be turned off.

(Flashes)

Indicates a malfunction in the pre-collision system. A buzzer also sounds.

(If equipped)

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5-2. Steps to take in an emergency

Warning message

Details

Indicates a malfunction in the radar cruise control sys- tem. A buzzer also sounds. Press the “ON-OFF” button once to deactivate the system, and then press the button again to reacti- vate the system.

(Flashes)

(If equipped)

(Flashes)

Indicates a malfunction in the LKA. A buzzer also sounds.

(If equipped)

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5-2. Steps to take in an emergency

Follow the correction procedures.

After taking the specified steps to correct the suspected problem, check that the warning message turns off.

Warning message

Details

Correction procedure

Indicates that all maintenance according to the driven dis- tance on the maintenance schedule* should be per- formed soon. Comes on approximately 4500 miles (7200 km) after the main- tenance data has been reset. Indicates that all maintenance is required to correspond to the driven distance on the maintenance schedule*. Comes on approximately 5000 miles (8000 km) after the main- tenance data has been reset. (The indicator will not work properly unless the mainte- nance data has been reset.)

If necessary, per- form maintenance.

Perform the neces- sary maintenance. Please reset the maintenance data after the mainte- nance is per- formed. (→P. 403)

(U.S.A. only)

(U.S.A. only)

*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual

Supplement” for the maintenance interval applicable to your vehicle.

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5-2. Steps to take in an emergency

Warning message

Details

• Indicates that the pre-collision system is not currently func- tional because the grille or the sensor is dirty. • This message also appears when the pre-collision system is not functional due to over- heating.

(If equipped)

Correction procedure

• Check the grille and the sensor and clean them if they are dirty. • In case of over- heating, the system will become func- tional once the sys- tem cools down.

(Flashes)

Indicates that the radar cruise control sensor is dirty or cov- ered with ice.

Clean the sensor.

(If equipped)

(Flashes)

Indicates that the radar cruise control system is unable to judge vehicle-to-vehicle dis- tance.

If the windshield wipers are on, turn them off or set them to either the intermittent or the slow mode.

(If equipped)

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Warning message

Details