2012 TOYOTA CAMRY HV engine

462 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. 362)
Start the engine of the second vehicle. Increase the gaso-
line engine speed slightly and maintain at that level for
approximately 5 minutes to recharge the 12-volt battery of
your vehicle.
Open and close any of the doors with the “POWER” switch
OFF.
Maintain the engine speed of the second vehicle and turn
the “POWER” switch to ON mode, then start the hybrid sys-
tem.
Make sure the “READY” indicator comes on. If the indicator
does not come on, contact your Toyota dealer.
Once the hybrid system has started, remove the jumper
cables in the exact reverse or der from which they were con-
nected.
Once the hybrid system starts, have the vehicle checked at your
Toyota dealer as soon as possible.STEP3
STEP4
STEP5
STEP6
STEP7

5
When trouble arises
465
5-2. Steps to take in an emergency
If your vehicle overheats
Correction procedures■ If the rightmost segment of th e engine coolant temperature
display are flashing
Stop the vehicle in a safe place and turn off the air condition-
ing system.
Check to see if steam is coming out from the engine area.
If you see steam: Stop the hybrid system. Carefully lift the hood after the
steam subsides and then restart the hybrid system.
If you do not see steam: Leave the hybrid system operating and carefully lift the
hood.
Check to see if the cooling fans are operating.
If the fans are operating: Wait until the rightmost segm ent of the engine coolant tem-
perature display stops flashing and returns to normal dis-
play. Then stop the hybrid system.
If the fans are not operating: Stop the hybrid system immediately and call your Toyota
dealer.
The following may indicate that your vehicle is overheating:
●The rightmost segment of the engine coolant temperature dis-
play is flashing:
The engine may be overheating.
● “HYBRID SYSTEM OVERHEAT” is shown on the multi-informa-
tion display:
The electric motor or power control unit may be overheating.
Follow the correction procedure as described below.
STEP1
STEP2
STEP3

466 5-2. Steps to take in an emergency
After the hybrid system has
cooled down sufficiently, check
the engine coolant level and
inspect the radiator core (radia-
tor) for any leaks.
Add engine coolant if necessary.
Water can be used in an emer-
gency if engine coolant is unavail-
able.
( P. 477)
Have the vehicle inspected at the nearest Toyota dealer as soon as
possible.
■ If “HYBRID SYSTEM OVERHEAT” is shown on the multi-infor-
mation display
Stop the vehicle in a safe place and turn off the air condition-
ing system.
Leave the hybrid system operating and carefully lift the hood.
Check if the cooling fans are operating.
If the fans are operating: Wait until the “HYBRID SYSTEM OVERHEAT” message
disappears and then stop the hybrid system.
If the message does not disapp ear, call your Toyota dealer.
If the fans are not operating: Stop the hybrid system immediately and call your Toyota
dealer.
STEP4
STEP5
STEP1
STEP2
STEP3

5
When trouble arises
467
5-2. Steps to take in an emergency
After the hybrid system has
cooled down, check the power
control unit coolant level and
inspect the cooling system for
leaks.
Add power control unit coolant if
necessary.
Water can be used in an emer-
gency if power control unit cool-
ant is unavailable. (

P. 477)
Have the vehicle inspected at the nearest Toyota dealer as soon as
possible.
STEP4
STEP5
■Overheating
The following symptoms may occur when your vehicle is overheating:
●Hybrid system output decreases.
● Steam comes out from the engine area.
● “HYBRID SYSTEM OVERHEAT” is shown on the multi-information dis-
play.

468 5-2. Steps to take in an emergency
CAUTION
■To prevent an accident or injury when inspecting under the hood of
your vehicle
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injury such as burns.
● Check that on the multi-information display and the “READY” indi-
cator are off.
● For vehicle with a hybrid system, there are times when the gasoline
engine automatically starts to run or the cooling fans suddenly start to
operate. Do not touch or approach the rotating parts of the belt or fans.
Doing so may lead to fingers, clothes or tools getting caught, resulting\
in
injury.
● Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
■When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem too quickly can cause damage to the hybrid system.
■ To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.)
● Do not use commercially available coolant additives.

473
6-1. Specifications
6
Vehicle specifications
This number is also on the Certi-
fication Label.
■ Engine number
The engine number is stamped on the engine bl ock as shown.

474 6-1. Specifications
Engine
Fuel
Electric motor (Traction motor)
Hybrid battery (Traction battery)
Model2AR-FXE
Type4-cylinder in line, 4-cycle, gasoline
Bore and stroke 3.54  3.86 in. (90.0  98.0 mm)
Displacement 152.2 cu.in. (2494 cm3)
Valve clearance
(engine cold) Automatic adjustment
Fuel type
Unleaded gasoline only
Octane rating 87 (Research Octane Number 91) or higher
Fuel tank capacity
(Reference) 17.0 gal. (64.35 L, 14.2 Imp. gal.)
Type
Permanent magnet synchronous motor
Maximum output 105 kW
Maximum torque 199 ft•lbf (270 N•m, 27.5 kgf•m)
TypeNickel-metal hydride battery
Voltage7.2 V/module
Capacity6.5 Ah (3HR)
Quantity 34 modules
Overall voltage 244.8 V

475
6-1. Specifications
6
Vehicle specifications
Lubrication system
*: The engine oil capacity is a reference quantity to be used when changing the
engine oil. Warm up the engine and turn off the hybrid system, wait more
than 5 minutes, and check the oil level on the dipstick.
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to satisfy
the following grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the best choice for
good fuel economy and good
starting in cold weather.
If SAE 0W-20 is not available,
SAE 5W-20 oil may be used.
However, it must be replaced
with SAE 0W-20 at the next oil
change.
Oil capacity
(Drain and refill
 refer-
ence*) With filter
Without filter 4.6 qt. (4.4 L, 3.9 Imp. qt.)
4.2 qt. (4.0 L, 3.5 Imp. qt.)
Outside temperature