warning light TOYOTA PRIUS 2009 2.G User Guide

106 1-8. Safety information
PRIUS_U_(OM47614U)
CAUTION
■Front passenger occupant cl assification system precautions
● If an adult sits in the front passenger seat, the “AIR BAG ON” indicator
light is illuminated. If the “AIR BAG OFF” indicator light is illuminated, ask
the passenger to sit up straight, well back in the seat, feet on the floor, and
with the seat belt worn correctly. If the “AIR BAG OFF” indicator light still
remain illuminated, either ask the passenger to move to the rear seat, or if
that is not possible, move the front passenger seat fully rearward.
● When it is unavoidable to install the forward-facing child restraint system
on the front passenger seat, install the child restraint system on the front
passenger seat in the proper order. ( P. 1 1 1 )
● Do not modify or remove the front seats.
● Do not kick the front passenger seat or subject it to severe impact. Other-
wise, the SRS warning light may come on to indicate a malfunction on the
detection system. In this case, contact your Toyota dealer immediately.
● Child restraint systems installed on the rear seat should not contact the
front seatbacks.
● Do not use a seat accessory, such as a cushion or seat cover, that covers
the seat cushion surface.
● Do not modify or replace the upholstery of the front seat.

When driving2
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2-1. Driving proceduresDriving the vehicle............ 122
Power (ignition) switch ..... 132
Transmission.................... 138
Turn signal lever .............. 142
Parking brake ................... 143
Horn ................................. 144
2-2. Instrument cluster Gauges and meters ......... 145
Indicators and warning lights .............................. 148 2-3. Operating the lights and
windshield wipers
Headlight switch ............... 152
Fog light switch ................ 155
Windshield wipers and washer ........................... 156
Rear window wiper and washer ........................... 158
2-4. Using other driving systems
Cruise control ................... 159
Rear view monitor system ........................... 163
Driving assist systems ..... 166
2-5. Driving information Cargo and luggage .......... 169
Vehicle load limits ............ 172
Winter driving tips ............ 173
Trailer towing ................... 177
Dinghy towing .................. 178

148
2-2. Instrument cluster
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Indicators and warning lights
The indicator and warning lights on the instrument cluster and cen-
ter panel inform the driver of the status of the vehicle’s various sys-
tems.
Instrument cluster
Touch screen (Type A)
ITY22P006

151
2-2. Instrument cluster
2
When driving
PRIUS_U_(OM47614U)
CAUTION
■
If a safety system warning light does not come on
Should a safety system light such as ABS and the SRS airbag warning light
not come on when you start the hybrid system, this could mean that these
systems are not available to help protect you in an accident, which could
result in death or serious injury. Have the vehicle inspected by your Toyota
dealer immediately if this occurs.
■ Warning lights
Warning lights inform the driver of malfunctions in the indicated
vehicle’s systems. ( P. 423)
*: These lights turn on when the “POWER” switch is turned to ON mode
to indicate that a system check is being performed. They will turn off
after the hybrid system is started is on, or after a few seconds. There
may be a malfunction in a system if the lights do not come on, or turn
off. Have the vehicle inspected by your Toyota dealer.
(U.S.A.)(Canada) redyellow(if equipped)
(U.S.A.)(Canada)
(U.S.A.)
(if equipped)
******
****
*
*

168 2-4. Using other driving systems
PRIUS_U_(OM47614U)
CAUTION
■The ABS does not operate effectively when
● The limits of tire gripping performance have been exceeded.
● The vehicle hydroplanes while driving at high speed on the wet or slick
road.
■ Stopping distance when the ABS is ope rating on the wet or slick roads
The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain a sufficient distance from the vehicle in front of you in the following
situations.
● When driving on dirt, gravel or snow-covered roads
● When driving with tire chains
● When driving over bumps in the road
● When driving over roads with potholes or roads with uneven pavement
■ When the Enhanced VSC is activated
The slip indicator light flashes and a warning buzzer sounds. Always drive
carefully.
Reckless driving may cause an accident. Exercise particular care when the
indicator light flashes and a buzzer sounds.
■ Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total
load capacity. In addition, make sure that the tires are inflated to the speci-
fied tire pressure level.
The ABS and Enhanced VSC will not function correctly if different tires are
fitted on the vehicle.
Contact your Toyota dealer for further information when replacing tires or
wheels.

377
4-3. Do-it-yourself maintenance
4
Maintenance and care
PRIUS_U_(OM47614U)
■
How to initialize the tire pressure warning system
Park the vehicle in safe place and turn the “POWER” switch to
OFF mode.
While the vehicle is moving, in itialization is not performed.
Adjust the tire inflation pressure to the specified cold tire infla-
tion pressure level. ( P. 468)
Make sure to adjust the tire pressure to the specified cold tire
inflation pressure level. The ti re pressure warning system will
operate based on this pressure level.
Turn the “POWER” switch to ON mode.
Push and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly 3 times.
Wait for a few minutes with the ON mode, and then turn
“POWER” switch to OFF mode.
STEP1
STEP2
STEP3
SET
ITY43P018
STEP4
STEP5

378 4-3. Do-it-yourself maintenance
PRIUS_U_(OM47614U)
Registering ID codesThe 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 regi ster the ID code of tire pressure
warning valve and transmitter. Have the ID code registered by your
Toyota dealer.
■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 or bulges indicating internal damage
●A tire goes flat repeatedly or c annot 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 pre ssure warning system will not work properly. After
driving for about 20 minutes, the ti re pressure warning light comes on
after blinking for 1 minute to indicate a system malfunction.
■Tire life
Any tire over 6 years old must be checked by a qualified technician even
if they have seldom or never been used or damage is not obvious.
■If the tread wears down below 0.16 in. (4 mm) on snow tires
The effectiveness of snow tires is lost.
■Maximum load of tire
Check that the maximum load of the re placed 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.
As for the maximum load of the tire, see the load limit at maximum cold
tire inflation pressure mentioned on the sidewall of the tire, and as for the
Gross Axle Weight Ratings (GAWR) , see the Certification Label.
(
P. 384, 473).

380 4-3. Do-it-yourself maintenance
PRIUS_U_(OM47614U)
■If you push the tire pressure warning reset switch accidentally
If initialization is performed, adjust the tire in flation pressure to the speci-
fied level and initialize the tire pressure warning system again.
■When the 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 b een 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 flash 3 times.
●After carrying out the initialization procedure, the tire pressure warn-
ing light blinks for 1 minute then stays on after driving 20 minutes.
■Routine tire inflation pressure checks
The tire pressure warning system doe s not replace routine tire inflation
pressure checks. Make sure to check tire inflation pressure as part of
your routine of daily vehicle checks.

382 4-3. Do-it-yourself maintenance
PRIUS_U_(OM47614U)
CAUTION
■Tire pressure warning system operation
The tire pressure warning system may not provide warning immediately
if a tire bursts or if sudden air leakage occurs.
■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 han-
dling characteristics, which may le ad to fatal or injury accidents.
●Do not mix tires of different makes, models, tread patterns or tread-
wear.
●Do not use tire sizes other than those recommended by Toyota.
●Do not mix radial, bias-belted, or bias-ply tires.
●Do not mix summer, all season and winter 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 push the tire pressure warnin g reset switch without first adjusting
the tire inflation pressure to the spec ified level. Otherwise, the tire pres-
sure warning light may not come on ev en if the tire inflation pressure is
low, or it may come on when the tire inflation pressure is actually normal.

When trouble arises5
411
PRIUS_U_(OM47614U)
5-1. Essential informationEmergency flashers ......... 412
If your vehicle needs to be towed ........................ 413
If you think something is wrong ............................. 420
Event data recorder ......... 421
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds... ........................ 423
If you have a flat tire......... 436
If the hybrid system will not start ................................ 446
If you lose your keys ........ 447
If the electronic key does not operate properly....... 448
If the 12 volt battery is discharged ..................... 449
If your vehicle overheats .. 454
If the vehicle becomes stuck .............................. 457