charging TOYOTA PRIUS 2012 3.G User Guide

432 4-3. Do-it-yourself maintenance
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, observe the following precautions before
recharging:
●If recharging with the 12-volt battery installed on the vehicle, be sure to
disconnect the ground cable.
● Make sure the power switch on the charger is off when connecting and
disconnecting the charger cables to the 12-volt battery.
■ Exterior
Make sure that the 12-volt battery terminals are not corroded
and that there are no loose c onnections, cracks, or loose
clamps.
Terminals
Hold-down clamp

433
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
After recharging/reconnecting the 12-volt battery
●Unlocking the doors using the smart key system may not be possible
immediately after reconnecting the 12-volt battery. If this happens, use
the wireless remote control or the mechanical key to lock/unlock the
doors.
● Start the hybrid system with the “POWER” switch in ACCESSORY mode.
The hybrid system may not start with the “POWER” switch turned off.
However, the hybrid system will operate normally from the second
attempt.
● The “POWER” switch mode is recorded by the vehicle. If the 12-volt bat-
tery is reconnected, the vehicle will return the “POWER” switch mode to
the status it was in before the 12-volt battery was disconnected. Make
sure to turn off the power before disconnect the 12-volt battery. Take
extra care when connecting the 12-volt battery if the “POWER” switch
mode prior to discharge is unknown.
● Restart the hybrid system, depress the brake pedal, and confirm that it is
possible to shift into each shift position.
If the system will not start even after multiple attempts at all methods above,
contact your Toyota dealer.

436 4-3. Do-it-yourself maintenance
CAUTION
■When disconnecting the 12-volt battery
NOTICE
■When recharging the 12-volt battery
Never recharge the 12-volt battery while the hybrid system is operating.
Also, be sure all accessories are turned off.
Do not disconnect the negative (-) termi-
nal on the body side as shown. The dis-
connected negative (-) terminal may
touch the positive (+) terminal, which may
cause a short and result in death or seri-
ous injury.

494 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 lightWarning 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.

546 5-2. Steps to take in an emergency
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■ To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is
off.
● Turn off any unnecessary electrical components when the vehicle is run-
ning at a low speed for an extended period, such as in heavy traffic.
■ When the 12-volt battery is removed or discharged
●The hybrid system may not start. ( P. 433)
● If the 12-volt battery is depleted with the shift position in P, it will not be
possible to shift the shift position other than P. In this case, the vehicle
cannot be towed without lifting both front wheels because the front
wheels are locked by the parking lock. ( P. 485)
● When the 12-volt battery is reconnected, start the hybrid system, depress
the brake pedal, and confirm that it is possible to shift into each shift posi-
tion.
■ Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even
when the vehicle is not in use, due to natural discharge and the draining
effects of certain electrical appliances. If the vehicle is left for a long time, the
12-volt battery may discharge, and the hybrid system may be unable to start.
(The 12-volt battery recharges automatically while the hybrid system is oper-
ating.)

548 5-2. Steps to take in an emergency
CAUTION
■After recharging the 12-volt battery
Have the 12-volt battery inspected at your Toyota dealer as soon as possi-
ble.
If the 12-volt battery is deteriorating, continued use may cause the 12-volt
battery to emit a malodorous gas, which may be detrimental to the health of
passengers.
■ When replacing the 12-volt battery
P. 435
NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fans, etc.
■ Exclusive jump starting terminal
The exclusive jump starting terminal is to be used when charging the 12-volt
battery from another vehicle in an emergency. It cannot be used to jump start
another vehicle.

567
6-1. Specifications
6
Vehicle specifications
Electrical system
Transmission
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact your Toyota dealer.
12-volt battery
12.6  12.8 V Fully charged
12.2  12.4 V Half charged
11 . 5  11.9 V Discharged
(Voltage is checked 20 minutes after the hybrid
system and all lights are turned off.)Open voltage
at 68  F (20 C):
Charging rates 5 A max.
Fluid capacity*3.6 qt. (3.4 L, 3.0 Imp.qt.)
Fluid type Toyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause
deterioration in shift quality, locking up of your transmission accompanied by
vibration, and ultimately damage the transmission of your vehicle.

627
Alphabetical index
Tonneau cover......................... 377
Tools......................................... 523
Touch tracer display ............... 215
Total load capacity .................. 316
Towing
Dinghy towing ....................... 323
Emergency towing ................ 486
Trailer towing ........................ 322
TRAC ........................................ 296
Traction control ....................... 296
Trailer towing........................... 322
Transmission Hybrid transmission .............. 202
P position switch................... 205
Trip information....................... 229
Trip meter................................. 214
Turn signal lights Replacing light bulbs ............ 467
Switch ................................... 211
Wattage ................................ 570
USB port
*................................ 352
Vanity lights Vanity lights .......................... 365
Wattage ................................ 570
Vanity mirrors .......................... 365
Vehicle control and operation
data recording ......................... 24
Vehicle identification
number................................... 561
Vehicle proximity notification system ..................................... 32
Vehicle stability control .......... 296
VSC ........................................... 296 Warning buzzers
Brake system ........................493
Open door ............................498
Seat belt reminder .................498
Warning lights
Anti-lock brake system (ABS) ..................................495
Automatic headlight leveling
system ................................497
Brake system ................493, 496
Charging system .... ...............494
Cruise control ........................497
Electric power steering system ................................495
High coolant temperature ......494
Hybrid system .......................495
Low fuel level ........................498
Low tire pressure...................499
Malfunction indicator lamp ....495
Open door .............................498
Pre-collision system ..............496
Radar cruise control. .............497
Seat belt warning light ...........498
Slip indicator..........................496
SRS airbags ..........................495
Tire pressure warning light ....499U
V
W
GW Refer to

631
What to do if...
■
Warning lights
P. 499
or
P. 495
or
P. 493P. 495
P. 494P. 496
P. 494P. 496
P. 496
or
P. 495P. 497
P. 495P. 497
Master warning light ABS warning light
Brake system warning
light (red indicatorF
Electric power steering
system warning light
Charging system
warning lightPre-collision system
warning light
G
High coolant
temperature warning
lightSlip indicator light
Brake system warning
light (yellow indicator)Malfunction indicator
lamp
Automatic headlight
leveling system
warning light
SRS warning lightCruise control indicator
light
G