charging TOYOTA PRIUS V 2012 (in English) User Guide

383
4-3. Do-it-yourself maintenance
PRIUS v_U (OM47674U)
4
Maintenance and care
■
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

384 4-3. Do-it-yourself maintenance
PRIUS v_U (OM47674U)
■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.
CAUTION
■ Chemicals in the 12-volt battery
The 12-volt battery contains poisonous and corrosive sulfuric acid and may
produce hydrogen gas which is flammable and explosive. To reduce the risk
of death or serious injury, take the following precautions while working on or
near the 12-volt battery:
● Do not cause sparks by touching the 12-volt battery terminals with tools.
● Do not smoke or light a match near the 12-volt battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the 12-volt battery.
● Keep children away from the 12-volt battery.

386 4-3. Do-it-yourself maintenance
PRIUS v_U (OM47674U)
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.

5
When trouble arises
443
5-2. Steps to take in an emergency
PRIUS v_U (OM47674U)
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
Low engine oil pressure warning light Indicates that the engine oil pressure is too low
High coolant temper ature warning light
Indicates that the coolant temperature is too high
Changes from a flashing to a solid light when the engine
coolant temperature increases.
Hybrid system warning light (warning buzzer) Indicates a malfunction in the hybrid system

5
When trouble arises
447
5-2. Steps to take in an emergency
PRIUS v_U (OM47674U)
Follow the correction procedures.
After taking the specified steps to correct the suspected problem,
check that the warning light goes off.
Warning lightWarning light/DetailsCorrection procedure

(Flashes) P position request indicator
light (warning buzzer)
The amount of charge remain-
ing in the hybrid battery (trac-
tion battery) has fallen because
the shift position has been left
in N for a long time Because recharging
is not possible when
the shift position is in
N, shift the shift posi-
tion to P when park-
ing the vehicle for a
long time.
The driver’s door has been
opened while the shift position
is in N, D or B Shift the shift posi-
tion to P.
An attempt has been made to
start the hybrid system while
the shift position is in anything
other than P
Hybrid system overheat warn-
ing light (warning buzzer)
The hybrid system has over-
heated Stop and check.
(
P. 485)

(Only outer
frame flashes) Low hybrid battery (traction
battery) warning light (warning
buzzer)
Hybrid battery (traction battery)
level becomes low because the
shift position is in N for long
time Because recharging
is not possible when
the shift position is in
N, shift the shift posi-
tion to P when park-
ing the vehicle for a
long time.

456 5-2. Steps to take in an emergency
PRIUS v_U (OM47674U)
CAUTION
TPMS (tire pressure warning system) malfunctions may occur for a vari-
ety of reasons, including the installation of replacement or alternate tires
or wheels on the vehicle that prevent the TPMS (tire pressure warning
system) from functioning properly. Always check the TPMS (tire pres-
sure warning system) malfunction te lltale after replacing one or more
tires or wheels on your vehicle to ensure that the replacement or alter-
nate tires and wheels allow the TPMS (tire pressure warning system) to
continue to function properly.
NOTICE
■If the charging system warning light often starts flashing
The 12-volt battery may have deterior ated. Because the 12-volt battery
could discharge if left in this state, have the 12-volt battery inspected by
your Toyota dealer.
■Precaution when installing a different tire
When a tire of a different specification or maker is installed, the tire pres-
sure warning system may not operate properly.

482 5-2. Steps to take in an emergency
PRIUS v_U (OM47674U)
■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. 384)
● 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. 435)
● 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.)

484 5-2. Steps to take in an emergency
PRIUS v_U (OM47674U)
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. 385
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.

500 6-1. Specifications
PRIUS v_U (OM47674U)
Ignition system
Electrical system
Spark plug
MakeDENSO SC20HR11
Gap 0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
12-volt battery
12.6  12.8 V Fully charged
12.2  12.4 V Half charged
11 . 8  12.0 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 4.2 A max.

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”.