2012 TOYOTA PRIUS PLUG-IN battery

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4-1. Maintenance and care
PRIUS PHV_OM_OM47818U_(U)
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Maintenance and care
■Caring for leather areas
To y o t a r e c o m m e n d s c l e a n i n g t h e i n t e r i o r o f t h e v e h i c l e a t l e a s t t w i c e a y e a r
to maintain the quality of the vehicle’s interior.
■Shampooing the carpets
There are several commercial foaming-type cleaners available. Use a
sponge or brush to apply the foam. Rub in overlapping circles. Do not use
water. Wipe dirty surfaces and let them dry. Excellent results are obtained by
keeping the carpet as dry as possible.
■Seat belts
Clean with mild soap and lukewarm water using a cloth or sponge. Also
check the belts periodically for excessive wear, fraying or cuts.
CAUTION
■Water in the vehicle
●Do not splash or spill liquid in the vehicle, such as on the floor, in the
hybrid battery (traction battery) air vents, and in the luggage compartment.
Doing so may cause the hybrid battery (traction battery), electrical compo-
nents, etc. to malfunction or catch fire.
●Do not get any of the SRS components or wiring in the vehicle interior wet.
(→P. 1 8 6 )
An electrical malfunction may cause the airbags to deploy or not function
properly, resulting in death or serious injury.
■Cleaning the interior (especially instrument panel)
Do not use polish wax or polish cleaner. The instrument panel may reflect off
the windshield, obstructing the driver’s view and leading to an accident,
resulting in death or serious injury.

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4-2. Maintenance
PRIUS PHV_OM_OM47818U_(U)
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Maintenance and care
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 Califor-
nia 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. 4 7 1 )

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4-2. Maintenance
PRIUS PHV_OM_OM47818U_(U)
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Maintenance and care
Luggage compartment
Ve h i c l e i n t e r i o r
ItemsCheck points
12-volt battery Check the connections. (→P. 4 7 1 )
ItemsCheck points
Accelerator pedal
•The accelerator pedal should
move smoothly (without uneven
pedal effort or catching).
Hybrid transmission “Park” mech-
anism
•When parked on a slope and the
shift position is in P, is the vehicle
securely stopped?
Brake pedal
•Does the brake pedal move
smoothly?
•Does the brake pedal have appro-
priate clearance from the floor?
(→P. 6 1 9 )
•Does the brake pedal have the
correct amount of free play?
(→P. 6 1 9 )
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.

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4-2. Maintenance
PRIUS PHV_OM_OM47818U_(U)
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 the emission control system.
■If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere
in the emission control system. Yo u r v e h i c l e m a y n o t p a s s t h e I /
M test and may need to be repaired. Contact your Toyota dealer
to service the vehicle.
■Yo u r v e h i c l e m a y n o t pa s s t h e I / M t e s t i n t h e f o l l o w i n g s i t u a -
tions:
●When the 12-volt battery is disconnected or discharged
Readiness codes that are set 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 vehicle 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.

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PRIUS PHV_OM_OM47818U_(U)
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Maintenance and care
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. 4 7 1 )
•Grease
•Conventional wrench
(for terminal clamp bolts)
Brake fluid level (→P. 4 6 7 )
•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. 4 6 4 )
•“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 Cool-
ant” is pre-mixed with 50% cool-
ant and 50% deionized water.
For Canada:
“Toyota Super Long Life Cool-
ant” is pre-mixed with 55% cool-
ant and 45% deionized water.
•Funnel (used only for adding cool-
ant)

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4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47818U_(U)
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Maintenance and care
Engine compar tment
■12-volt battery
→P. 4 7 1
Engine coolant reservoir
(→P. 4 6 4 )
Engine oil level dipstick
(→P. 4 6 0 )
Engine oil filler cap
(→P. 4 6 1 )
Power control unit coolant
reservoir (→P. 4 6 4 )
Brake fluid reservoir
(→P. 4 6 7 )
Fuse box (→P. 4 9 5 )
Radiator (→P. 4 6 6 )
Condenser (→P. 4 6 6 )
Electric cooling fans
Washer fluid tank (→P. 4 6 9 )

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4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47818U_(U)
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Maintenance and care
12-volt batter y
■Location
The 12-volt battery is located
in the right-hand side of lug-
gage compartment.
■Removing the 12-volt battery cover
Open the center deck board. (→P. 4 0 3 )
Remove the side deck board.
Remove the auxiliary box.
STEP 1
STEP 2
STEP 3

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4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47818U_(U)
■Before charging
When charging, the 12-volt battery produces hydrogen gas which is flamma-
ble and explosive. Therefore, observe the following precautions before
charging:
●If charging with the 12-volt battery installed on the vehicle, be sure to dis-
connect 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.
Remove the 12-volt battery
maintenance cover.
■Exterior
Make sure that the 12-volt battery terminals are not corroded
and that there are no loose connections, cracks, or loose
clamps.
Te r m i n a l s
Hold-down clamp
STEP 4