2018 TOYOTA CAMRY HYBRID cooling

4506-3. Do-it-yourself maintenance
Remove the dust from the air
intake vent with a vacuum
cleaner, etc.
Make sure to only use a vacuum to
suck out dust and clogs. Attempt-
ing to blow out dust and clogs
using an airgun, etc. may push it
into the air intake vent. (→P. 454)
If dust and clogs cannot be comple tely removed with the air intake
vent cover installed, remove the cover and clean the filter.
Turn the power switch off.
Using a Phillips screwdriver,
remove the clip.
Cleaning the hybrid battery (traction bat-
tery) air intake vent and filter
To prevent an increase in fuel consumption, visually inspect the
hybrid battery (traction battery) air intake vent periodically for
dust and clogs. If it is dusty or clogged or if “Maintenance
Required for Traction Battery Cooling Parts See Owner’s Man-
ual” is displayed on the multi-in formation display, clean the air
intake vent using the following procedures:
Cleaning the air intake vent
If dust and clogs cannot be completely removed
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4536-3. Do-it-yourself maintenance
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Maintenance and care
■Scheduled maintenance of the air intake vent is necessary when
In some situations such as when the vehicle is used frequently or in heavy
traffic or dusty areas, the air intake vent may need to be cleaned more regu\
-
larly. For details, refer to “Schedule maintenance guide” or “Owner’s Manual
Supplement”.
■ Cleaning the air intake vent
●Dust in the air intake vent may interfere with the cooling of the hybrid battery
(traction battery). If the hybrid battery (traction battery) overheats, the dis-
tance that the vehicle can be driven using the electric motor (traction motor)
may be reduced and the fuel consumption may increase.
Inspect and clean the air intake vent periodically.
● Improper handling of the air intake vent cover and filter may result in dam-
age to them. If you have any concerns about cleaning the filter, contact your
Toyota dealer.
■ If “Maintenance Required for Tracti on Battery Cooling Parts See Owner’s
Manual” is displayed on the multi-information display
● If this warning message is displayed on the multi-information display,
remove the air intake vent cover and clean the filter. (→P. 450)
● After cleaning the air intake vent, start the hybrid system and check that the
warning message is no longer displayed.
After the hybrid system is started, it may be necessary to drive the vehicle
up to approximately 20 minutes befor e the warning message disappears. If
the warning message does not disappear after driving for appropriately 20
minutes, have the vehicle inspected by your Toyota dealer.
WARNING
■When cleaning the air intake vent
Do not use water or other liquids to clean the air intake vent. If water is
applied to the hybrid battery (traction battery) or other components, a mal-
function or fire may occur.
■
When removing the air intake vent cover
Do not touch the service plug located near the air intake vent. ( →P. 80)

4546-3. Do-it-yourself maintenance
NOTICE
■When cleaning the air intake vent
■ To prevent damage to the vehicle
● Do not allow water or foreign matter to enter the air intake vent when the
cover is removed.
● Carefully handle the removed filter so that it will not be damaged.
If the filter is damaged, have it replaced with a new filter by your Toyota
dealer.
● Make sure to reinstall the filter and cover to their original positions after
cleaning.
● Do not install anything to the air intake vent other than the exclusive filter
for this vehicle or use the vehicle without the filter installed.
■ If “Maintenance Required for Traction Battery Cooling Parts See
Owner’s Manual” is displayed on the multi-information display
If the vehicle is continuously driven with the warning message displayed,
the hybrid battery (traction battery) may overheat, possibly causing a mal-
function. If the warning message is displayed, clean the air intake vent
immediately.
When cleaning the air intake vent, make
sure to only use a vacuum to suck out
dust and clogs. If a compressed air blow
gun, etc. is used to blow out dust and
clogs, the dust or clogs may be pushed
into the air intake vent, which may affect
the performance of the hybrid battery
(traction battery) and cause a malfunc-
tion.

4927-2. Steps to take in an emergency
■Warning messages
The warning messages explained below may differ from the actual messages
according to operation conditions and vehicle specifications.
■ System warning lights
The master warning light does not come on or flash in the following cases.
Instead, a separate system warning light will come on along with a message
shown on the multi-information display.
●Malfunction in the ABS
The ABS warning light comes on. ( →P. 481)
● Malfunction in the brake system
The brake system warning light (yellow) comes on. ( →P. 480)
● Malfunction in the tire pressure warning system
The tire pressure warning light comes on. ( →P. 483)
● Remaining fuel level is low
The low fuel level warning light comes on. ( →P. 483)
■ If a message instructing to refer to the Owner’s Manual is displayed
● If the following messages are shown, there may be a malfunction.
Immediately stop the vehicle in a safe place and contact your Toyota dealer.
Continuing to drive the vehicle may be dangerous.
• “Low Braking Power Stop in a Safe Place See Owner’s Manual”
• “Oil Pressure Low Stop in a Safe Place See Owner’s Manual”
• “Charging System Malfunction Stop in a Safe Place See Owner’s Man-
ual”
● If the following message is shown, there may be a malfunction.
Immediately have the vehicle inspected by your Toyota dealer.
• “Hybrid System Malfunction”
• “Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
• “Smart Key System Malfunction See Owner’s Manual”
● If “Engine Coolant Temp High Stop in a Safe Place See Owner’s Manual” is
displayed, follow the instructions accordingly. ( →P. 519)
● If “Maintenance Required for Traction Battery Cooling Parts See Owner’s
Manual” is displayed, follow the instructions accordingly. ( →P. 493)

4937-2. Steps to take in an emergency
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When trouble arises
■If “Hybrid System Overheated Re duced Output Power” is shown
This message may be displayed when driving under severe operating condi-
tions. (For example, when driving up a long steep hill.)
Handling method: →P. 519
■ If “Maintenance Required for Tracti on Battery Cooling Parts See Owner’s
Manual” is shown
The filter may be clogged, the air intake vent may be blocked or there may be
a gap in the duct.
● If the air intake vent or filter is dirty, refer to P. 450 for cleaning the air intake
vent and filter.
● If the message is being displayed and the air intake vent and filter are not
dirty, have the vehicle inspected at your Toyota dealer.
■ If “Traction Battery Needs to be Protected Refrain From the Use of N
Position” is shown
This message may be displayed when the shift lever is in N.
As the hybrid battery (traction battery) cannot be charged when the sh\
ift lever
is in N, when the vehicle is to be stopped for a long period of time, shift the
shift lever to P.
■ If “Traction Battery Needs to be Pr otected Shift into P to Restart” is
shown
Message is displayed when the remaining charge for the hybrid battery (trac-
tion battery) is low, because vehicle has been shifted N for a long period of
time.
When operating the vehicle, shift the shift lever to P and restart the hybrid
system.
■ If “Shift to P Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without turning the
power switch off with the shift lever in any position other than P.
Shift the shift lever to P.
■ If “Shift Is in N Release Acceler ator Before Shifting” is shown
Message is displayed when the accelerator pedal has been depressed and
the shift lever is in N. Release the accelerator pedal and shift the shift lever to
D or R.
■ If “Press Brake When Vehicle Is Sto pped Hybrid System May Overheat”
is shown
Message is displayed when the accelerator pedal is depressed to maintain
the vehicle position when stopped on a upward slope, etc.
If this continues, the hybrid system may overheat.
Release the accelerator pedal and depress the brake pedal.

5187-2. Steps to take in an emergency
WARNING
■When replacing the 12-volt battery
After replacing, securely attach the exhaust hose and exhaust hole plug to
the exhaust hole of the replaced 12-volt battery. If not properly installed,
gases (hydrogen) may leak into the vehicle interior, and there is the possi-
ble danger of the gas igniting and exploding.
NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fan or engine drive belt.
■ To prevent damaging the vehicle
The exclusive jump starting terminal is to be used when charging the 12-volt
battery from another vehicle in an emergency. It cannot be used to jump
start another vehicle.

5197-2. Steps to take in an emergency
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When trouble arises
■If the needle of the engine coolant temperature gauge enters
the red zone or “Engine Coolant Temp High Stop in a Safe
Place See Owner’s Manual” is shown on the multiinformation
display
Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled down sufficiently,
inspect the hoses and radiator
core (radiator) for any leaks.Radiator
Cooling fan
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
● The needle of the engine c oolant temperature gauge (→P. 96)
enters the red zone or a loss of hybrid system power is experi-
enced. (For example, the vehi cle speed does not increase.)
● “Engine Coolant Temp High Stop in a Safe Place See Owner’s
Manual” or “Hybrid System Ov erheated Reduced Output Power”
is shown on the multi-information display
● Steam comes out from under the hood.
Correction procedures
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5207-2. Steps to take in an emergency
The coolant level is satisfactory
if it is between the “F” and “L”
lines on the reservoir.Reservoir
“F” line
“L” line
Radiator cap
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to
check that the radiator cooling fan operates and to check for cool-
ant leaks from the radiator or hoses.
The fan operates when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fan is operating by checking the fan
sound and air flow. If it is difficult to check these, turn the air conditioning
system on and off repeatedly. (The fan may not operate in freezing tem-
peratures.)
If the fan is not operating:
Stop the hybrid system immediately and contact your Toyota dealer.
If the fan is operating:
Have the vehicle in spected at the nearest Toyota dealer.
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