2021 TOYOTA C-HR check engine

3656-3. Do-it-yourself maintenance
6
Maintenance and care
C-HR_OM_USA_OM10684U
The coolant level is satisfactory if it is between the “FULL” a nd “LOW”
lines on the reservoir wh en the engine is cold.
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line.
■ 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-bora te coolant with
long-life hybrid organic acid technology.
For the U.S.A.: “Toyota Super Long Life Coolant” is a mixture o f 50% cool-
ant and 50% deionized water. (Minimum temperature: -31 F
[-35 C])
For Canada: “Toyota Super Long Life Coolant” is a mixture of 55 % cool-
ant and 45% deionized water. (Minimum temperature: -44 F
[-42 C])
For more details about engine coolant, contact your Toyota deal er.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir ca ps, 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 system.
Engine coolant

3666-3. Do-it-yourself maintenance
C-HR_OM_USA_OM10684U
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehic le inspected by your Toyota dea ler.
WARNING
■When the engine is hot
Do not remove the engine coolant reservoir cap.
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 straight antifreeze. The cor rect 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 p arts or paint.
Radiator and condenser
WARNING
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and c ause seri-
ous injuries, such as burns.

4016-3. Do-it-yourself maintenance
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Maintenance and care
C-HR_OM_USA_OM10684U
Checking and replacing fuses
Turn the engine switch off.
Open the fuse box cover.
Engine compartment type A fuse box
While pushing the 2 claws, lift
up the cover.
When closing the cover, make sure
to attach the 2 claws.
Engine compartment type B fuse box
While pushing the 3 claws, lift
up the cover.
When closing the cover, make sure
to attach the 3 claws.
Engine compartment type C fuse box
While pushing the 2 claws, lift
up the cover.
When closing the cover, make sure
to attach the 2 claws.
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.
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4377-2. Steps to take in an emergency
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When trouble arises
C-HR_OM_USA_OM10684U
Low fuel level warning lightIndicates that remaining fuel is approximately 2.0 gal.
(7.5 L, 1.6 Imp.gal.) or less
 Refuel the vehicle.
*3
Driver’s and front passenger’ s seat belt reminder light
(warning buzzer) Warns the driver and/or front passenger to fasten their
seat belts.
 Fasten the seat belt.
If the front passenger seat is occupied, the front pas-
senger’s seat belt also needs to be fastened to make
the warning light (warning buzzer) off.
*3
(On the center panel)
Rear passengers’ seat belt reminder lights (warning
buzzer)
Warn the rear passengers to fasten their seat belts
 Fasten the seat belt.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( P. 4 4 0 )
• Flat tire ( P. 449)
 Adjust the tire inflation pressure to the specified
level.
The light will turn off after a few minutes. In case
the light does not turn off even if the tire inflation
pressure is adjusted, have the system checked by
your Toyota dealer.
When the light comes on after blinking for 1 minute:
Malfunction in t he tire pressure warning system
(  P. 4 4 0 )
 Have the system checked by your Toyota dealer.
*1High engine coolant temperature warning light (warning
buzzer)
Indicates that the engine coolant temperature is too high
 P. 470
Warning lightWarning light/Details/Actions

4407-2. Steps to take in an emergency
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When the tire pressure warning light comes on
Inspect the appearance of the ti
re to check that the tire is not punctured.
If the tire is punctured: P. 449
If the tire is not punctured:
Carry out the following procedure after the tire temperature has lowered
sufficiently.
●Check the tire inflation pressure and adjust to the appropriate level.
●If the warning light does not go out even after several minutes , check
that the tire inflation pressure is at the specified level and carry out ini-
tialization. ( P. 3 7 8 )
The warning light may come on again if the above operations are con-
ducted without first allowing t he tire temperature to lower suf ficiently.
■The tire pressure warning light may come on due to natural caus es
The tire pressure warning light may come on due to natural caus es such
as natural air leaks and tire inflation pressure changes caused by tem-
perature. In this case, adjusting the tire inflation pressure w ill turn off the
warning light (afte r a few minutes).
■When a tire is replace d with a spare tire
The compact spare tire is not equipped with a tire pressure war ning valve
and transmitter. If a tire goes flat, the tire pressure warning light will not
turn off even though the flat tire has been replaced with the s pare tire.
Replace the spare tire with the repaired tire and adjust the ti re inflation
pressure. The tire pressure war ning light will go off after a few minutes.
■Conditions that the tire pressure warning system may not functi on
properly
 P. 3 8 1
■If the tire pressure warning light frequently comes on after bl inking
for 1 minute
If the tire pressure warning light frequently comes on after bl inking for
1 minute when the engine switch is turned to the “ON” position (vehicles
without smart key system) or IGNITION ON mode (vehicles with sm art
key system), have it checked by your Toyota dealer.
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy pla ce or an
audio sound.

4477-2. Steps to take in an emergency
7
When trouble arises
C-HR_OM_USA_OM10684U■
If a message that indicates the need for referring to Owner’s M anual is
displayed
● If “Engine Coolant Temperature High.”is shown, follow the instructions
(P. 470).
● If the following messages are shown, there may be a malfunction . Immedi-
ately stop the vehicle in a safe place and contact your Toyota dealer. Con-
tinuing to drive the vehicle may be dangerous.
• “Braking Power Low.”
• “Charging System Malfunction.”
• “Engine Oil Pressure Low.”
● If the following messages are shown, there may be a malfunction . Immedi-
ately have the vehicle inspected by your Toyota dealer.
• “Smart Key System Malfunction.”
■ If “Engine Oil Level Low. Add or Replace Oil.” is displayed
The engine oil level is low. Check the level of the engine oil, and add if neces-
sary.
This message may appear if the vehicle is stopped on a slope. M ove the
vehicle to a level surface and check to see if the message disa ppears.
■ If “Engine Stopped. Steerin g Power Low.” is displayed
This message is displayed if the engine is stopped while drivin g.
When steering wheel operations are heavier than usual, grip the steering
wheel firmly and operate it using more force than usual.
■ If “Maintenance Required Soon.” is shown (U.S.A. only)
Indicates that all maintenance according to the driven distance on the mainte-
nance schedule
* should be performed soon.
Comes on approximately 4500 miles (7200 km) after the message has been
reset.
If necessary, perform maintenance. Please reset the message aft er the main-
tenance is performed. ( P. 348)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner ’s Manual
Supplement” for the maintenance interval applicable to your vehicle.
■ If “Maintenance Required. Visit Your Dealer.” is shown (U.S.A. only)
Indicates that all maintenance is required to correspond to the driven distance
on the maintenance schedule
*.
Comes on approximately 5000 miles (8000 km) after the message has been
reset. (The indicator will not work properly unless the message has been
reset.)
Perform the necessary maintenance. Please reset the message aft er the
maintenance is performed. ( P. 348)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner ’s Manual
Supplement” for the maintenance interval applicable to your vehicle.

4637-2. Steps to take in an emergency
7
When trouble arises
C-HR_OM_USA_OM10684U
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Toyota emblem side
of the electronic key to the
engine switch.
When the electronic key is
detected, a buzzer sounds and the
engine switch will turn to IGNITION
ON mode.
When the smart key system is
deactivated in customization set-
ting, the engine switch will turn to
ACCESSORY mode.
Firmly depress the brake pedal and check that and mes-
sages are shown on the multi-information display.
Press the engine switch.
In the event that the engine still cannot be started, contact your Toyota
dealer.
Starting the engine
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4647-2. Steps to take in an emergency
C-HR_OM_USA_OM10684U
■Stopping the engine
Set the parking brake, shift the shift lever to P and press the engine switch as
you normally do when stopping the engine.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommende d that the
electronic key battery be replaced immediately when the battery is depleted.
( P. 397)
■ Changing engine switch modes
Release the brake pedal and press the engine switch in step ab ove. The
engine does not start and modes will be changed each time the s witch is
pressed. ( P. 184)
■ When the electronic key does not work properly
●Make sure that the smart key system and push button start has n ot been
deactivated in the customization setting. If it is off, turn th e function on.
(Customizable features: P. 500)
● Check if battery-saving mode is set. If it is set, cancel the f unction.
( P. 135)
WARNING
■ When using the mechanical key and operating the power windows
Operate the power window after checking to make sure that there is no pos-
sibility of any passenger having any of their body parts caught in the side
window.
Also, do not allow children to operate the mechanical key. It is possible for
children and other passengers to get caught in the power window .
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