check engine light TOYOTA PRIUS V 2012 Owners Manual (in English)

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PRIUS v_U (OM47674U)
4-1. Maintenance and careCleaning and protecting the vehicle exterior............ 346
Cleaning and protecting the vehicle interior............. 350
4-2. Maintenance Maintenance requirements ..................... 353
General maintenance.......... 356
Emission inspection and maintenance (I/M)
programs........................... 360
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ....................... 361
Hood ................................... 364
Positioning a floor jack ........ 367
Engine compartment ........... 370
12-volt battery ..................... 382
Tires .................................... 387
Tire inflation pressure ......... 396
Wheels ................................ 400
Air conditioning filter............ 403
Electronic key battery.......... 406
Checking and replacing fuses ................................. 408
Light bulbs........................... 419 5-1. Essential information
Emergency flashers............ 434
If your vehicle needs to be towed................................ 435
If you think something is wrong ............................... 441
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer sounds .... 442
If you have a flat tire ........... 460
If the hybrid system will not start .................................. 474
If you lose your keys........... 476
If the electronic key does not operate properly ......... 477
If the 12-volt battery is discharged........................ 479
If your vehicle overheats .... 485
If the vehicle becomes stuck ................................. 489
If your vehicle has to be stopped in an
emergency ....................... 491
4Maintenance and care5When trouble arises

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2-1. Driving procedures
PRIUS v_U (OM47674U)
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When driving
CAUTION
■
When driving the vehicle
● Do not drive if you are unfamiliar with the location of the brake and accel-
erator pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake
pedal will result in sudden acceleration that may lead to an accident
that could result in death or serious injury.
• When backing up, you may twist your body around, leading to a diffi- culty in operating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the vehicle only slightly. This allows you to depress the brake and acceler-
ator pedals properly.
• Depress the brake pedal using your right foot. Depressing the brake pedal using your left foot may delay response in an emergency, result-
ing in an accident.
● Because there is no engine noise when the vehicle is being driven using
the electric motor, pedestrians in the vicinity may not notice the vehicle.
Even though the vehicle is equipped with the vehicle proximity notification
system, drive with care as pedestrians in the vicinity may still not notice
the vehicle if the surrounding area is noisy.
● Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. These hot
parts may cause a fire if there is any flammable material nearby.
● Do not let the vehicle roll backward while a forward driving position is\
selected, or roll forward while the shift position is in R.
Doing so may result in an accident or damage to the vehicle.
● If the smell of exhaust is noticed inside the vehicle, open the windows and
check that the back door is closed. Large amounts of exhaust in the vehi-
cle can cause driver drowsiness and an accident, resulting in death or a
serious health hazard. Have the vehicle inspected by your Toyota dealer
immediately.

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2-1. Driving procedures
PRIUS v_U (OM47674U)
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When driving
CAUTION
●
Do not drive in excess of the speed limit. Even if the legal speed limit per-
mits it, do not drive over 85 mph (140 km/h) unless your vehicle has high-
speed capability tires. Driving over 85 mph (140 km/h) may result in tire
failure, loss of control and possible injury. Be sure to consult a tire dealer
to determine whether the tires on your vehicle are high-speed capability
tires or not before driving at such speeds.
■ When driving on slippery road surfaces
● Sudden braking, acceleration and steering may cause tire slippage and
reduce your ability to control the vehicle, resulting in an accident.
● Abrupt changes from shift position D to B and rapid changes in the engine
speed could cause the vehicle to skid, resulting in an accident.
● After driving through a puddle, lightly depress the brake pedal to make
sure that the brakes are functioning properly. Wet brake pads may prevent
the brakes from functioning properly. If the brakes on only one side are wet
and not functioning properly, steering control may be affected, resulting in
an accident.
■ When changing the shift position
Be careful not to change the shift position with the accelerator pedal
depressed.
Changing the shift position to any positions other than P or N may cause the
vehicle to accelerate abruptly, causing an accident and resulting in death or
serious injury.
After changing the shift position, make sure to confirm the current shift posi-
tion displayed on the shift position indicator inside the meter.
■ If you hear a squealing or scrapin g noise (brake pad wear limit indica-
tors)
Have your Toyota dealer check and replace the brake pads as soon as pos-
sible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads
and/or those of the brake discs are exceeded.

174 2-1. Driving procedures
PRIUS v_U (OM47674U)
Check that the “READY” indicator is on.
If the “READY” indicator changes from a flashing light to a solid
light and the buzzer sounds, the hybrid system is starting nor-
mally.
The vehicle will not move when the “READY” indicator is off.
The vehicle can move when the “READY” indicator is on even if
the engine is stopped. (The gasoline engine starts or stops auto-
matically in accordance with the state of the vehicle.)
■Stopping the hybrid system
Stop the vehicle completely.
Set the parking brake. ( P. 193)
Shift the shift position to P. ( P. 186)
Check that the shift position indicator shows P. ( P. 183)
Press the “POWER” switch.
The hybrid system will stop.
Slowly release the brake pedal and check that the indicator
on the “POWER” switch is off.
STEP 4
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5

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2-2. Instrument cluster
PRIUS v_U (OM47674U)
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When driving
■
Engine speed
On hybrid vehicles, engine speed is precisely controlled in order to help
improve fuel efficiency and reduce exhaust emissions etc.
There are times when the engine speed that is displayed may differ even
when vehicle operation and driving conditions are the same.
■ Brightness of the instrument panel light
If the headlight switch is turned to ON while the surrounding area is dark, the
instrument panel lights will dim.
■ When disconnecting and reconnect ing 12-volt battery terminals
The average fuel consumption and cruising range will be reset.
NOTICE
■ To prevent damage to the engine and its components
The engine may be overheating if the high coolant temperature warning light
comes on or flashes. In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. ( P. 485)
■ The trip information disp lay at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal
information display. At extremely low temperatures, the information display
monitor may respond slowly, and display changes may be delayed.

Maintenance and care4
345
PRIUS v_U (OM47674U)
4-1. Maintenance and careCleaning and protecting the vehicle exterior ......... 346
Cleaning and protecting the vehicle interior .......... 350
4-2. Maintenance Maintenance requirements .................. 353
General maintenance....... 356
Emission inspection and maintenance (I/M)
programs ........................ 360
4-3. Do-it-yourself maintenance Do-it-yourself service precautions .................... 361
Hood ................................ 364
Positioning a floor jack ..... 367
Engine compartment ........ 370
12-volt battery .................. 382
Tires ................................. 387
Tire inflation pressure ...... 396
Wheels ............................. 400
Air conditioning filter......... 403
Electronic key battery....... 406
Checking and replacing fuses .............................. 408
Light bulbs........................ 419

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When trouble arises
485
5-2. Steps to take in an emergency
PRIUS v_U (OM47674U)
If your vehicle overheats
Correction procedures■ If the high coolant temperature warning light flashes or comes
on
Stop the vehicle in a safe place and turn off the air condition-
ing system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the hybrid system. Carefully lift the hood after the
steam subsides and then restart the hybrid system.
If you do not see steam: Leave the hybrid system operating and carefully lift the
hood.
Check to see if the cooling fans are operating.
If the fans are operating: Wait until the high coolant temperature warning light goes
off and then stop the hybrid system.
If the fans are not operating: Stop the hybrid system immediately and call your Toyota
dealer.
The following may indicate that your vehicle is overheating:
●The high coolant temperature warn ing light flashes or comes on:
The engine may be overheating.
● The hybrid system overhe at warning light comes on:
The power control unit may be overheating.
Follow the correction procedure as described below.
STEP 1
STEP 2
STEP 3

486 5-2. Steps to take in an emergency
PRIUS v_U (OM47674U)
After the hybrid system has
cooled down sufficiently, check
the engine coolant level and
inspect the cooling system for
leaks.
If necessary, add engine coolant
up to the “FULL” line.
Water can be used in an emer-
gency measure if engine coolant
is unavailable. (P. 499)
Have the vehicle checked at nearest Toyota dealer as soon as possi-
ble.
■If the hybrid system overheat warning light comes on
Stop the vehicle in a safe place and turn off the air condition-
ing system.
Leave the hybrid system operating and carefully lift the hood.
Check if the cooling fans are operating.
If the fans are operating: Wait until the hybrid system overheat warning light turns off
and then stop the hybrid system.
If the warning light does not turn off, call your Toyota dealer.
If the fans are not operating: Stop the hybrid system immediately and call your Toyota
dealer.
STEP 4
STEP 5
STEP 1
STEP 2
STEP 3

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Alphabetical index
PRIUS v_U (OM47674U)
Engine
Accessory mode ................... 175
Compartment........................ 370
Hood ..................................... 364
How to start the hybrid system................................ 173
Identification number ............ 495
If the hybrid system will not start .................................... 474
Ignition switch ....................... 173
Overheating .......................... 485
“POWER” switch .................. 173
Engine coolant Capacity ............................... 499
Checking .............................. 375
Preparing and checking before winter ...................... 271
Engine/power control unit coolant
Capacity ............................... 499
Checking .............................. 375
Preparing and checking before winter ...................... 271
Engine oil Capacity ............................... 497
Checking .............................. 371
Preparing and checking before winter ...................... 271
Enhanced VSC......................... 250
EPS ........................................... 250
EV drive mode switch ............. 180
Event data recorder .................. 22 Floor mats.................................324
Fluid
Brake .....................................501
Washer ..................................380
Fog lights Replacing light bulbs .............419
Switch....................................219
Wattage .................................504
Foot lights.................................299
Front fog lights
Replacing light bulbs .............419
Switch....................................219
Wattage .................................504
Front passenger occupant classification system ............135
Front passenger’s seat belt reminder light.........................449
Front seats
Adjustment ..............................81
Flattening seatbacks ...............82
Front side marker light Replacing light bulbs .............419
Wattage .................................504
Front turn signal lights Replacing light bulbs .............419
Switch....................................192
Wattage .................................504
Fuel
Capacity ................................496
Fuel gauge ............................195
Information ............................505
Refueling ...............................112
Type ......................................505
Fuel door...................................112
Fuel filler door ..........................112
Fuses.........................................408F

559
Alphabetical index
PRIUS v_U (OM47674U)
Warning buzzers
Brake system........................ 442
Open door ........................... 448
Seat belt reminder ................ 449
Warning lights Anti-lock brake system
(ABS) ................................. 444
Automatic headlight leveling system................................ 446
Brake system................ 442, 445
Charging system .... .............. 443
Cruise control ....................... 446
Electric power steering
system................................ 444
High coolant temperature ..... 443
Hybrid system....................... 443
Hybrid system overheat........ 447
LED headlights ..................... 446
Low engine oil pressure ....... 443
Low fuel level........................ 449
Low hybrid battery (traction battery) ................. 447
Low tire pressure .................. 449
Malfunction indicator lamp.... 444
Open door ............................ 448
Parking lock system ............. 445
P position request... .............. 447
Pre-collision system ............. 445
Radar cruise control. ............ 446
Seat belt warning light .......... 449
Slip indicator ......................... 445
Smart key system ... .............. 457
SRS airbags ......................... 444
Tire pressure warning light ... 449 Warning message
Parking lock system ..............446
Washer
Checking ...............................380
Preparing and checking before winter .......................271
Switch....................................221
Washing and waxing ...............346
Weight Cargo capacity ......................270
Load limits .............................270
Weight ...................................494
Wheels ......................................400
Window glasses .......................109
Window lock switch .................109
Windows Power windows .....................109
Rear window defogger ..........293
Washer ..................................221
Windshield wipers ...................221
Winter driving tips ...................271
Wireless remote control key Locking/Unlocking ...................69
Replacing the battery ............406
WMA disc
*
W
*: Refer to “Display Audio System Owner’s Manual” or “Navigation System Owner’s Manual”.