2012 TOYOTA PRIUS C 12-volt battery

Maintenance and care4
341
4-1. Maintenance and careCleaning and protecting the vehicle exterior......... 342
Cleaning and protecting the vehicle interior.......... 345
4-2. Maintenance Maintenance requirements .................. 348
General maintenance....... 351
Emission inspection and maintenance (I/M)
programs........................ 355 4-3. Do-it-yourself maintenance
Do-it-yourself service precautions .................... 356
Hood ................................ 360
Positioning a floor jack ..... 362
Engine compartment ........ 364
12-volt battery .................. 375
Tires ................................. 380
Tire inflation pressure ...... 388
Wheels ............................. 392
Air conditioning filter......... 395
Wireless remote control/ electronic key battery ..... 397
Checking and replacing fuses .............................. 400
Light bulbs........................ 411

350 4-2. Maintenance
CAUTION
■If your vehicle is not properly maintained
Improper maintenance could result in serious damage to the vehicle and
possible serious injury or death.
■ Handling of the 12-volt battery
●Engine exhaust, some of its constituents, and a wide variety of automobile
components contain or emit chemicals known to the State of California to
cause cancer and birth defects and other reproductive harm. Work in a
well ventilated area.
● Oils, fuels and fluids contained in vehicles as well as waste produced by
component wear contain or emit chemicals known to the State of
California to cause cancer and birth defects or other reproductive harm.
Avoid exposure and wash any affected area immediately.
● 12-volt battery posts, terminals and related accessories contain lead and
lead compounds which are known to cause brain damage. Wash your
hands after handling. ( P. 375)

352 4-2. Maintenance
Vehicle interior
ItemsCheck points
12-volt battery Check the connections. ( P. 375)
Accelerator pedal • The accelerator pedal should
move smoothly (without uneven
pedal effort or catching).
Brake pedal • Does the brake pedal move
smoothly?
• Does the brake pedal have appro- priate clearance from the floor?
(P. 497)
• Does the brake pedal have the correct amount of free play?
(P. 497)
Brakes • The vehicle should not pull to one
side when the brakes are applied.
• The brakes should work effec- tively.
• The brake pedal should not feel spongy.
• The brake pedal should not get too close to the floor when the
brakes are applied.
Head restraints
(Adjustable type) • Do the head restraints move
smoothly and lock securely?
Hybrid transmission “Park” mech-
anism • When parked on a slope and the
parking brake is on, is the vehicle
securely stopped?
Indicators/buzzers • Do the indicators and buzzers
function properly?
Lights • Do all the lights come on?

355
4-2. Maintenance
4
Maintenance and care
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which
include OBD (On Board Diagnostics) checks. The OBD system moni-
tors the operation of th e emission control system.
■If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere
in the emission control system. Your vehicle may not pass the I/
M test and may need to be repaired. Contact your Toyota dealer
to service the vehicle.
■ Your vehicle may not pass the I/M test in the following situa-
tions:
●When the 12-volt battery is disconnected or discharged
Readiness codes that are se t during ordinary driving are
erased.
Also, depending on your driving habits, the readiness codes
may not be completely set.
● When the fuel tank cap is loose
The malfunction indicator lamp comes on indicating a tempo-
rary malfunction and your vehi cle may not pass the I/M test.
■ When the malfunction indicator lamp still remains on after
several driving trips
The error code in the OBD system will not be cleared unless the
vehicle is driven 40 or more times.
■ If your vehicle does not pass the I/M test
Contact your Toyota dealer to prepare the vehicle for re-testing.

356
4-3. Do-it-yourself maintenance
Do-it-yourself ser vice precautions
If you perform maintenance by yourself, be sure to follow the correct
procedure as given in these sections.
ItemsParts and tools
12-volt battery condition( P. 375) • Grease
• Conventional wrench
(for terminal clamp bolts)
Brake fluid level ( P. 371)• FMVSS No.116 DOT 3 or SAE
J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power control unit coolant
level ( P. 369)• “Toyota Super Long Life Coolant”
or a similar high quality ethylene
glycol based non-silicate,
non-amine, non-nitrite and
non-borate coolant with long-life
hybrid organic acid technology
For the U.S.A.:
“Toyota Super Long Life
Coolant” is pre-mixed with 50%
coolant and 50% deionized
water.
For Canada:
“Toyota Super Long Life
Coolant” is pre-mixed with 55%
coolant and 45% deionized
water.
• Funnel (used only for adding coolant)

375
4-3. Do-it-yourself maintenance
4
Maintenance and care
12-volt batter y
■Location
The 12-volt battery is located
under the rear right seat.
■ Removing the 12-volt battery cover
Remove the 12-volt battery
cover after removing the clips.

376 4-3. Do-it-yourself maintenance
■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
■ Installing the 12-volt battery cover
Install the 12-volt battery cover
with the clips.

377
4-3. Do-it-yourself maintenance
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.
■ When disconnecting the 12- volt battery terminals
Always disconnect the negative (-) terminal first.
■ After recharging/reconn ecting the 12-volt battery (vehicles with a
smart key system)
● 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.
If the system will not start even after multiple attempts, contact your Toyota
dealer.