2012 TOYOTA CAMRY HV engine

357
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Coolant selection
Only use “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.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Minimum temperature: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44 F [-42 C])
For more details about coolant, contact your Toyota dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiators, hoses, engine/power control unit coolant reser-
voir caps, drain cock and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling systems.
CAUTION
■When the hybrid system is hot
Do not remove the engine/power control unit coolant reservoir caps.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor stra ight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.

360 4-3. Do-it-yourself maintenance
CAUTION
■When adding washer fluid
Do not add washer fluid when the hybrid system is hot or operating as
washer fluid contains alcohol and may catch fire if spilled on the hybrid sys-
tem etc.
NOTICE
■Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces.
■ Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.

384
4-3. Do-it-yourself maintenance
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
Turn the “POWER” switch off.
Open the fuse box cover.
Engine compartment (type A fuse box) Push the tabs in and lift the lid
off.
Engine compartment (type B fuse box) Push the tabs in and lift the lid
off.
Under the instrument panel Remove the lid.STEP1
STEP2

386 4-3. Do-it-yourself maintenance
Fuse layout and amperage ratings■ Engine compartment (type A fuse box)
Fuse block
Ty p e C Normal fuse
Blown fuse
Contact your Toyota dealer.

390 4-3. Do-it-yourself maintenance
■Engine compartment (type B fuse box)
FuseAmpereCircuit
1 PM IGCT 7.5 A Hybrid system, electronic con-
trolled transmission
2 BATT VL SSR 10 A Hybrid system
3 INV 7.5 A Hybrid system
4 DC/DC IGCT 10 A Hybrid system
5 INV W/PMP
RLY 7.5 A Hybrid system
6 BATT FAN 7.5 A Battery cooling fan
7 INV W/PMP 15 A Hybrid system
8 IGCT-MAIN 25 A DC/DC IGCT, INV, BATT VL SSR,
PM IGCT, INV W/PMP RLY, BATT
FA N

412
5-1. Essential information
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your Toyota dealer as soon as
possible.
■ Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air cond itioning after use is normal.)
● Flat-looking tires or uneven tire wear
● The rightmost segment of the engine coolant temperature dis-
play flashes
■ Audible symptoms
●Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the hybrid system
■ Operational symptoms
●Engine missing, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, s pongy feeling, pedal almost
touches the floor

414 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.
Have the vehicle inspected by your Toyota dealer immediately.Failing to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.
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 engine coolant temper ature warning light (the
rightmost segment of the engine coolant temperature
display flashes) Indicates that the engine is almost overheating. ( P. 465)
Warning lightWarning light/Details
(U.S.A.)
(Canada) Malfunction indicator lamp
Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system; or
• The hybrid transmission control system.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The front passenger occupant classification system; or
• The seat belt pretensioner system.

5
When trouble arises
439
5-2. Steps to take in an emergency

Power was
turned off due to
the automatic
power off func-
tion.Next time when
starting the
hybrid system,
increase the
engine speed
slightly and
maintain that
level for approx-
imately 5 min-
utes to recharge
the 12-volt-bat-
tery.
Once
The electronic
key has a low
battery.Replace the
electronic key
battery.
(
P. 382)
Interior
buzzerExterior
buzzerWarning messageDetailsCorrection
procedure