2012 TOYOTA PRIUS warning

5
When trouble arises
549
5-2. Steps to take in an emergency
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.
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.
● “HYBRID SYSTEM OVERHEAT” is shown on the multi-informa-
tion display:
The power control unit may be overheating.
Follow the correction procedure as described below.
STEP 1
STEP 2

550 5-2. Steps to take in an emergency
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.
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. 566)
Have the vehicle checked at nearest Toyota dealer as soon as possi-
ble.
STEP 3
STEP 4
ITO52P130
STEP 5

5
When trouble arises
551
5-2. Steps to take in an emergency
■
If “HYBRID SYSTEM OVERHEAT” is shown on the multi-infor-
mation display
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 “HYBRID SYSTEM OVERHEAT” disappears 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.
After the hybrid system has
cooled down, check the power
control unit coolant level and
inspect the cooling system for
leaks.
STEP 1
STEP 2
STEP 3
STEP 4

581
6-1. Specifications
6
Vehicle specifications
■
Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C,
and they represent the tire’s ab ility to stop on wet pavement as
measured under controlled cond itions on specified government
test surfaces of asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking
(straight ahead) traction tests and does not include cornering (turn-
ing) traction.
■ Temperature A, B, C
The temperature grades are A (the highest), B, and C, represent-
ing the tire’s resistance to the generation of heat and its ability to
dissipate heat when tested under controlled conditions on a speci-
fied indoor laboratory test wheel.
Sustained high temperature can cause the material of the tire to
degenerate and reduce tire life, and excessive temperature can lead
to sudden tire failure.
Grade C corresponds to a level of performance which all passenger
car tires must meet under the Federal Motor Vehicle Safety Standard
No. 109.
Grades B and A represent higher levels of performance on the labo-
ratory test wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is properly
inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either sepa-
rately or in combination, can caus e heat buildup and possible tire fail-
ure.

596 6-2. Customization
Multi-information display (P. 223)
ItemFunctionDefault set-
tingCustom-ized
setting
Remote Air
Condition-
ing System
( P. 342) Operation using
the
“A/C” button on
the wireless
remote control
Push and
hold for 0.8 seconds Push once
––O
Push twice
Push and
hold for 2.4 seconds
OFF
Stopping the
operation using
the “A/C” button
on the wireless
remote control Push twicePush once
––O
Push and
hold for 0.8 seconds
Push and
hold for 2.4 seconds
OFF
Reverse
warning
buzzer
( P. 207) Operation sig-
nals (Buzzer)
when shifting
into R
Beeps
repeatedly Beeps
once ––O
Seat belt
reminder
( P. 500) Vehicle speed
linked seat belt
reminder buzzer
ON OFF – – O
Available languagesEnglish, French and Spanish

597
6
Vehicle specifications
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Maintenance data After the maintenance is performed P. 403
Tire pressure warning
system • When rotating the tires on vehicles
with differing front and rear tire infla-
tion pressures
• When changing the tire size P. 439
The following items must be initia
lized for normal system operation
after such cases as the 12-volt batt ery being reconnected, or mainte-
nance being performed on the vehicle.

617
Abbreviation list
OBDOn Board Diagnostics
PCSPre-Collision System
PWRPower
SRSSupplemental Restraint System
TINTire Identification Number
TPMSTire Pressure Monitoring (Warning) System
TRACTraction Control
TWITreadwear Indicator
VINVehicle Identification Number
VSCVehicle Stability Control
ABBREVIATIONSMEANING

618
Alphabetical index
Alphabetical index
A/CAutomatic air conditioning system ................................ 326
ABS ........................................... 296
Active head restraint ............... 100
Air conditioning system Automatic air conditioning
system ................................ 326
Remote Air Conditioning System ................................ 342
Steering wheel climate remote control switches ...... 337
Airbags
Airbag operating conditions............................ 144
Airbag precautions for your
child .................................... 148
Airbag warning light............... 495
Curtain shield airbag operating conditions............................ 144
Curtain shield airbag precautions ......................... 148
Front passenger occupant classification system ........... 154
General airbag precautions ... 148
Knee airbag ........................... 140
Locations of airbags .............. 140
Modification and disposal of
airbags ................................ 153
Proper driving posture ........... 138
Side airbag operating conditions............................ 144
Side airbag precautions ........ 148
Side and curtain shield airbags operating conditions............ 144
Side and curtain shield airbags precautions ......................... 148
SRS airbags .......................... 140
SRS airbag instructions for
Canadian owners. ............... 603 Antenna .................................... 398
Anti-lock brake system ........... 296
Armrest ..................................... 371
Audio input
*............................. 352
Audio remote control switches
*
Audio system*
Audio/video system*
Automatic air conditioning system
Air conditioning system ......... 326
Automatic air conditioning system ................................ 326
Remote Air Conditioning System................................ 342
Steering wheel climate
remote control switches ...... 337
Automatic headlight leveling system .................................... 255
Automatic light control system .................................... 250
AUX port
*................................. 352
Auxiliary box .................... 363, 376
A