2012 TOYOTA PRIUS C warning light

383
4-3. Do-it-yourself maintenance
4
Maintenance and care
■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 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 doe s not replace routine tire inflation
pressure checks. Make su re to check tire inflation pressure as part of
your routine of daily vehicle checks.
■Low profile tires (vehicles with P195/50R16 tires)
Generally, low profile tire s 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.
■Maximum load of tire
Check that the maximum load of the replacement tire is greater than 1/2
of the Gross Axle Weight Ratings (GAW R) 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. 503)

385
4-3. Do-it-yourself maintenance
4
Maintenance and care
■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 doe s not blink 3 times.
●After driving for a certain period of time since the initialization has
been completed, the wa rning light comes on after blinking for 1
minute.
■Tire pressure warning system certification
FCC ID: PAXPMVC010
U.S.A.
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 expre ssly approved by the party responsi-
ble for compliance could void the user's authority to operate the equip-
ment.
Canada
Operation is subject to the following two conditions: (1) this device may
not cause interference, and (2) this de vice must accept any interference,
including interference that may caus e undesired operation of the device.

386 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 ti res (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.
●Do not tow if your vehicle has a compact spare tire installed.
■When initializing the tire pressure warning system
Do not operate the tire pressure wa rning reset switch without first adjust-
ing the tire inflation pr essure 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.

408 4-3. Do-it-yourself maintenance
Under the driver’s side instrument panel
FuseAmpereCircuit
1 TAIL 10 A Parking lights, side marker lights,
tail lights, license plate lights, front
fog lights, gauge and meters
2 PANEL 5 A Instrument panel lights
3 DOOR R/R 20 A Rear power window (right side)
4 DOOR P 20 A Front power window (right side)
5 ECU-IG NO.1 5 A Rear window defogger, tire pres-
sure warning system, main body
ECU, brake system, vehicle stabil-
ity control system, power door lock
system, smart key system
6 ECU-IG NO.2 5 A Electric power steering system
7HTR-IG 7.5 A Air conditioning system, PTC
heater
8 GAUGE 10 A Back-up lights, audio system, shift
lock control system, moon roof,
vehicle control and operation data
recording, vehicle proximity notifi-
cation system
9 WASHER 15 A Windshield wipers and washer
10 WIPER 25 A Windshield wipers and washer
11 WIPER RR 15 A Windshield wipers and washer
12 P/W 30 A Power window

When trouble arises5
423
5-1. Essential informationEmergency flashers ......... 424
If your vehicle needs to be towed ............................. 425
If you think something is wrong ......................... 430 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds ........................... 431
If a warning message is displayed .................... 441
If you have a flat tire......... 457
If the hybrid system will not start .......................... 469
If the shift lever cannot be shifted from P............ 471
If you lose your keys ........ 472
If the electronic key does not operate properly....... 473
If the vehicle 12-volt battery is discharged ...... 475
If your vehicle overheats ....................... 480
If the vehicle becomes stuck .............................. 485
If your vehicle has to be stopped in an
emergency ..................... 486

5
When trouble arises
431
5-2. Steps to take in an emergency
If a war ning light turns on or a war ning buzzer sounds
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.
*: Brake system warning buzzer: When there is a possible problem that could affect braking performance, the
warning light will come on and a warning buzzer will sound.
Parking brake engaged warning buzzer:
P. 444
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Brake system warning light in red (warning buzzer)*
• 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.
Calmly perform the following actio ns 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 o ccur, have the vehicle inspected by
your Toyota dealer.

432 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.
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 lightWarning light/Details
Charging system warning light Indicates a malfunction in the vehicle's charging sys-
tem
Warning lightWarning light/Details
(U.S.A.)

(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system
SRS warning light Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
(U.S.A.)

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

5
When trouble arises
433
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.
Electric power steering syst em warning light (warn-
ing buzzer) Indicates a malfunction in the EPS (Electric Power
Steering) system
(Comes on) Slip indicator light
Indicates a malfunction in:
• Vehicle stability control;
• Traction control; or
• Hill-start assist control
Brake system warning light in yellow Indicates a malfunction in:
• The regenerative brake system; or
• The electronically controlled brake system
Warning lightWarning light/DetailsCorrection procedure
(Flashes) Low fuel level warning
light
Remaining fuel is low
When the remaining fuel
is approximately 1.2 gal.
(4.7 L, 1.0 Imp. gal.) or
less, a buzzer sounds
and the lowest segment
of the fuel gauge flashes Refuel the vehicle.
Warning lightWarning light/Details