2007 TOYOTA CAMRY HYBRID cooling

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If your hybrid system stalls while driving...1. Reduce your speed gradually, keeping a straight line. Move cautiously off the
road to a safe place.
2. Turn on your emergency flashers.
3. Set the “POWER” switch at ACC or off, and try starting the hybrid system
again.
If the hybrid system will not start, see “If
your vehicle will not start” on page 313 in
this Section.
CAUTION
If the hybrid system is not operat-
ing, the power assist for the brakes
and steering will not work so steer-
ing and braking will be much hard-
er than usual.
If the hybrid system stalls while
driving, do not open the driver’s
door until the vehicle comes to a
complete stop. Opening the driver’s
door locks the steering wheel, re-
sulting in loss of steering control.
Any of the following may indicate that
the hybrid system has overheated:
The engine coolant temperature
gauge indicates overheating.
The message “WATER TEMP” or
“HYBRID SYSTEM OVER HEAT” ap-
pears on the multiinformation dis-
play.
A loss of power is experienced.
A loud knocking or pinging noise is
heard.
If the hybrid system overheats, follow
the procedures below:
1. Pull safely off the road, stop the ve- hicle and turn on your emergency
flashers. Put the transmission in “P”
and apply the parking brake. Turn off
the air conditioning if it is being used.
2. If coolant or steam is boiling out of the radiator or reservoir, stop the hybrid
system. Wait until the steam subsides
before opening the hood. If there is no
coolant boiling over or steam, leave the
hybrid system turned on and make
sure the electric cooling fan is operat-
ing. If it is not, turn the hybrid system
off.
CAUTION
To help avoid personal injury, keep
the hood closed until there is no
steam. Escaping steam or coolant is
a sign of very high pressure.
3. Look for obvious coolant leaks from theradiator, hoses, and under the vehicle.
However, note that water draining from
the air conditioning is normal if it has
been used.
CAUTION
When the hybrid system is on, keep
hands and clothing away from the
moving fan.
4. If the coolant is leaking, stop the hy-
brid system immediately. Call a Toyota
dealer for assistance.
5. If there are no obvious leaks, check the coolant reservoir. If it is dry, add
coolant to the reservoir while the hy-
brid system is on. Fill it about half full.
For the coolant type, see “Coolant type
selection” on page 357 in Section 7 −2.
If your hybrid system stalls
while driving If your vehicle overheats

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1. Brake fluid reservoir
2. Engine oil filler cap
3. Engine oil level dipstick
4. Coolant reservoir (for inverter, tractionmotor and motor generator)
5. Radiator (for engine)
6. Fuse block
7. Condenser
8. Electric cooling fans
9. Radiator (for inverter, traction motor and motor generator)
10. Windshield washer fluid tank 11. Coolant reservoir (for engine)
Engine compartment overview

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CAUTION
Never touch, remove or disassemble
high voltage parts and cables.
Touching, removing or disassem-
bling those parts and cables can
cause severe burns or electric
shock that may result in death or
serious injury. For the locations of
high voltage parts and cables, see
“—High voltage components” on
page 7 in Section 11.
When the hybrid system is on, keep
hands, clothing, and tools away
from the moving fan. (Removing
rings, watches, and ties is advis-
able.)
Right after driving, the engine
compartment—the engine, radiator,
exhaust manifold and spark plug
boots, etc.—will be hot. So be care-
ful not to touch them. Oil, fluids
and spark plugs may also be hot.
If the radiator is hot, do not remove
the radiator cap or loosen the drain
plugs to prevent burning yourself.
Do not leave anything that may
burn easily, such as paper or rags,
in the engine compartment.
When the hybrid system is operat-
ing with the “READY” light on, the
engine may suddenly start in some
cases. When you inspect the engine
compartment, be sure to turn off
the hybrid system.
Do not get under your vehicle with
just the body jack supporting it. Al-
ways use automotive jack stands or
other solid supports.
Be sure that the POWER” switch is
off if you work near the electric
cooling fans or radiator grille. With
the “POWER” switch on, the elec-
tric cooling fans will automatically
start to run if the engine coolant
temperature is high and/or the air
conditioning is on.
Use eye protection whenever you
work on or under your vehicle
where you may be exposed to flying
or falling material, fluid spray, etc.
Brake fluid can harm your hands or
eyes and damage painted surfaces.
If fluid gets on your hands or in
your eyes, flush the affected area
with clean water immediately. If you
still feel uncomfortable with your
hands or eyes, go to the doctor.
Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as in-
flammation or skin cancer, so care
should be taken to avoid prolonged
and repeated contact with it. To re-
move used engine oil from your
skin, wash thoroughly with soap
and water.
Do not leave used oil within the
reach of children.
Dispose of used oil and filter only
in a safe and acceptable manner.
Do not dispose of used oil and fil-
ter in household trash, in sewers or
onto the ground. Call your dealer or
a service station for information
concerning recycling or disposal.
Be extremely cautious when work-
ing on the 12 volt battery. It con-
tains poisonous and corrosive
sulfuric acid.

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Coolant reservoir for engine
Look at the seethrough coolant reser-
voir when the hybrid system is cold.
The coolant level is satisfactory if it is
between the “F” and “L” lines on the
reservoir. If the level is low, add the
coolant. (For the coolant type, see
“Coolant type selection” described be-
low.)
The coolant level in the reservoir will vary
with the hybrid system temperature. How-
ever, if the level is on or below the “L”
line, add coolant. Bring the level up to the
“F” line.
Coolant reservoir for inverter, traction mo-
tor and motor generator
Look at the seethrough coolant reser-
voir when the hybrid system is cold.
The coolant level is satisfactory if it is
between the “FULL” and “LOW” lines
on the reservoir. If the level is low, add
coolant. (For the coolant type, see
“Coolant type selection” described be-
low.)
The coolant level in the reservoir will vary
with the hybrid system temperature. How-
ever, if the level is on or below the “LOW”
line, add coolant. Bring the level up to the
“FULL” line.If the coolant level drops within a short
time after replenishing, there may be a
leak in the system. Visually check the
radiator, hoses, coolant filler cap, radiator
cap and drain cock and water pump.
If you can find no leak, have your Toyota
dealer test the cap pressure and check
for leaks in the cooling system.
CAUTION
To prevent burning yourself, do not
remove the radiator cap when the hy-
brid system is hot.
Coolant type selection
Use of improper coolants may damage
your cooling system.
Only use “Toyota Super Long Life Coolant”
or similar high quality ethylene glycol
based non
−silicate, non −amine, non− nitrite,
and non− borate coolant with long −life
hybrid organic acid technology. (Coolant
with long −life hybrid organic acid
technology is a combination of low
phosphates and organic acids.)
Checking the coolant level

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For the U.S.A.—“Toyota Super Long Life
Coolant” is a mixture of 50% coolant and
50% deionized water. This coolant pro-
vides protection down to about −35 C
( − 31 F).
For Canada—“Toyota Super Long Life
Coolant” is a mixture of 55% coolant and
45% deionized water. This coolant pro-
vides protection down to about −42 C
( − 44 F).
NOTICE
Do not use plain water alone.
Toyota recommends “Toyota Super Long
Life Coolant”, which has been tested to
ensure that it will not cause corrosion nor
result in malfunction of your coolant
system with pr oper usage. “Toyota Super
Long Life Coolant” is formulated with
long− life hybrid organic acid technology
and has been specifically designed to
avoid cooling system malfunction on
Toyota vehicles.
Please contact your Toyota dealer for
further details. If any of the above parts are extremely
dirty or you are not sure of their condi-
tion, take your vehicle to a Toyota dealer.
CAUTION
To prevent burning yourself, be care-
ful not to touch the radiator or con-
denser when they may be hot after
driving.
NOTICE
To prevent damage to the radiator
and condenser, do not perform the
work by yourself.
Checking the radiator and
condenser

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WHEN TO REPLACE YOUR WHEELS
If you have wheel damage such as
bending, cracks or heavy corrosion, the
wheel should be replaced.
If you fail to replace a damaged wheel,
the tire may slip off the wheel or cause
loss of handling control.
WHEEL SELECTION
When replacing wheels, care should be
taken to ensure that the wheels are re-
placed by ones with the same load ca-
pacity, diameter, rim width, and offset.
Correct replacement wheels are available
at your Toyota dealer.
A wheel of a different size or type may
adversely affect handling, wheel and bear-
ing life, brake cooling, speedometer/odom-
eter calibration, stopping ability, headlight
aim, bumper height, vehicle ground clear-
ance, and tire or snow chain clearance to
the body and chassis.Replacement with used wheels is not rec-
ommended as they may have been sub-
jected to rough treatment or high mileage
and could fail without warning. Also, bent
wheels which have been straightened may
have structural damage and therefore
should not be used. Never use an inner
tube in a leaking wheel which is designed
for a tubeless tire.
CAUTION
Do not use wheels other than the
manufacturer ’s recommended size, as
this may cause dangerous handling
characteristics resulting in loss of
control. Otherwise, an accident may
occur resulting in death or serious
injuries.
Initial adjustment of the tire pressure
warning system is necessary after you
have replaced your wheels. See “Tire
pressure warning system” on page 168
in Section 17.
When installing aluminum wheels,
check that the wheel nuts are tight
after driving your vehicle the first 1600
km (1000 miles).
If you have rotated, repaired, or
changed your tires, check that the
wheel nuts are still tight after driving
1600 km (1000 miles).
When using tire chains, be careful not
to damage the aluminum wheels.
Use only Toyota wheel nuts and
wrench designed for your aluminum
wheels.
When balancing your wheels, use only
Toyota balance weights or equivalent
and a plastic or rubber hammer.
As with any wheel, periodically check
your aluminum wheels for damage. If
damaged, replace immediately.
Replacing wheels
Aluminum wheel precautions

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ENGINE
Valve clearance (engine cold), mm (in.):Intake 0.19—0.29 (0.007—0.011)
Exhaust 0.38—0.48 (0.015—0.019)
Spark plug type:
DENSO SK20R11
NGK IFR6A11
Spark plug gap, mm(in.): 1.1 (0.043)
NOTICE
Use only above spark plugs. Do not
adjust gaps for engine performance or
smooth driveab ility.
ENGINE LUBRICATION
Oil capacity (drain and refill), L (qt., Imp.
qt.):
With filter 4.3 (4.5, 3.8)
Without filter 4.1 (4.3, 3.6)
“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 multigrade engine oil
Recommended oil viscosity: SAE 5W −20 or 0W −20
Outside temperature
Please contact your Toyota dealer for fur-
ther details. COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):
Engine6.2 (6.6, 5.5)
Inverter, traction motor and motor gener-
ator 2.9 (3.1, 2.6)
Coolant type: “Toyota Super Long Life Coolant” is
used in your Toyota vehicle at factory
fill. In order to avoid technical problems,
only use “Toyota Super Long Life
Coolant” or similar high quality ethylene
glycol based non −silicate, non −amine,
non− nitrite, and non− borate coolant with
long− life hybrid organic acid technology.
(Coolant with long −life hybrid organic
acid technology is a combination of low
phosphates and organic acids.)
Do not use plain water alone.
Please contact your Toyota dealer for
further details.
Service specifications

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26. HLP(LL) 15 A: Left−hand headlight
(low beam)
27. HLP(RH) 15 A: Right−hand headlight
(high beam)
28. HLP(LH) 15 A: Left−hand headlight
(high beam)
29. HTR 50 A: Air conditioning system
30. HTR SUB2 50 A: PTC heater
31. HTR SUB1 50 A: PTC heater
32. RR DEF 50 A: Rear window defogger,
“MIR HTR” fuse
33. CDS FAN 40 A: Electric cooling fans
34. RDI FAN 40 A: Electric cooling fans
35. DC/DC 120 A: “ABS MTR2”, “EPS”,
“ABS MTR”, “AM2”, DOOR NO.1”,
“ETCS”, “IG2”, “HAZ”, “AMP”, “ABS
MAIN1”, “ABS MAIN2”, “STR LOCK”,
“ABS MAIN3”, “BTT FAN”, “EFI MAIN”,
“EFI NO.1” and “IGCT” fuses
36. EPS 80 A: Electric power steering sys-
tem
37. ABS MTR2 40 A: Electronically con-
trolled brake system
38. ABS MTR1 50 A: Electronically con-
trolled brake system
INSTRUMENT PANEL
1. RR DOOR RH 25 A: Rear right power
window
2. RR DOOR LH 25 A: Rear left power
window
3. FUEL OPN 7.5 A: Fuel fillter door
opening system
4. FR FOG 15 A: No circuit
5. OBD 7.5 A: On−board diagnosis sys-
tem
6. ECUB NO.2 7.5 A: No circuit7. STOP 10 A:
Stop lights, high mounted
stoplight, shift lock control system,
multiport fuel injection system/sequen-
tial multiport fuel injection system, main
body ECU, electronically controlled
brake system, electronic throttle control
system
8. TI&TE 30 A: No circuit
9. AM1 7.5 A: Starting system, multiport
fuel injection system/sequential multi-
port fuel injection system
10. A/C 7.5 A: Air conditioning system
11. PWR 25 A: Power windows
12. DOOR NO.2 25 A: Main body ECU
13. S/ROOF 30 A: Electric moon roof
14. TAIL 15 A: Front side marker lights,
tail lights, rear side marker lights, li-
cense plate lights
15. PANEL 7.5 A: Navigation system, seat
heaters, emergency flashers, air condi-
tioning system, audio system, glove
box light, instrument panel lights, steer-
ing switches, clock
16. ECU IG NO.1 10 A: Main body ECU,
push start system, electric moon roof,
auto anti −glare inside rear view mirror,
tire pressure warning system, naviga-
tion system