engine TOYOTA C-HR 2023 Manual PDF

6026-3. Do-it-yourself maintenance
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The coolant level is satisfactory if it is between the “FULL” or “F” and
“LOW” or “L” lines on the reservoir when the hybrid system is c old.
■Engine coolant reservoir
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line. ( P. 755)
■Power control unit coolant reservoir
Reservoir
“FULL” or “F” line
“LOW” or “L” line
If the level is on or below the “LOW” or “L” line, add coolant up to the
“FULL” or “F” line. ( P. 755)
Coolant
2ZR-FXE engineM20A-FXS engine

6036-3. Do-it-yourself maintenance
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6
Maintenance and care
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high qua lity ethylene
glycol based non-silicate, non-am ine, non-nitrite, and non-borate coolant with
long-life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant an d 50% deion-
ized water. (Minimum temperature: -35 C [-31F])
For more details about coolant, contact any authorized Toyota r etailer or
Toyota authorized repairer, or any reliable repairer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine/power control unit c oolant reservoir
caps, drain cock and water pump.
If you cannot find a leak, have any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer test the cap and check for leaks in the
cooling system.
WARNING
■ When the hybrid system is hot
Do not remove the engine/power control unit coolant reservoir c aps.
The cooling system may be under pressure and may spray hot cool ant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■ When adding coolant
Coolant is neither plain water nor straight 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 coola nt label.
■ If you spill coolant
Be sure to wash it off with water to prevent it from damaging p arts or paint.

6046-3. Do-it-yourself maintenance
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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 vehicle inspected by any authorized To y o t a
retailer or Toyota authorized repairer, or any reliable repaire r.
Check the 12-volt battery as follows.
■12-volt battery exterior
Make sure that the 12-volt battery terminals are not corroded a nd
that there are no loose connections, cracks, or loose clamps.
Te r m i n a l s
Hold-down clamp
Radiator and condenser
WARNING
■ When the hybrid system is hot
Do not touch the radiator or condenser as they may be hot and c ause seri-
ous injuries, such as burns.
12-volt battery (2ZR-FXE engine)

6096-3. Do-it-yourself maintenance
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6
Maintenance and care
Add washer fluid in the following situations:
● A washer does not work.
● The warning message appears
on the multi- information dis-
play. (if equipped)
Washer fluid
WARNING
■ When adding washer fluid
Do not add washer fluid when the hybrid system is hot or operat ing as
washer fluid contains alcohol and may catch fire if spilled on the engine, etc.
NOTICE
■Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer f luid.
Doing so may cause streaking on the vehicle’s painted surfaces, as well as
damaging the pump leading to problems of the washer fluid not s praying.
■ Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the w asher fluid bot-
tle.

6106-3. Do-it-yourself maintenance
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12-volt batter y (M20A-FXS engine)
The 12-volt battery is located in
the luggage compartment under
the deck board.
Removing the deck board:
 P. 5 6 5
Make sure that the 12-volt battery terminals are not corroded a nd that
there are no loose connections, cracks, or loose clamps.
Te r m i n a l s
Hold-down clamp
Location
Exterior

6466-3. Do-it-yourself maintenance
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Checking and replacing fuses
Turn the power 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 (2ZR-FXE engine)
While pushing the 3 claws, lift up
the cover.
When closing the cover, make sure
to attach the 3 claws.
Engine compartment type B fuse box (M20A-FXS engine)
While pushing the 3 claws, lift up
the cover.
When closing the cover, make sure
to attach the 3 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.
1
2

6476-3. Do-it-yourself maintenance
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6
Maintenance and care
Engine compartment type C fuse box (2ZR-FXE engine)
Remove the cover.
When installing the cover, make
sure to attach the claw.
Luggage compartment (M20A-FXS engine)
Remove the deck board
( P. 565).
While pushing the claw, lift up the
cover.
When closing the cover, make sure
to attach the claw.
Left side instrument panel (left-hand drive vehicles)
Remove the lid.
Make sure to press the claw during
removal or installation.

6486-3. Do-it-yourself maintenance
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Left side instrument panel (right-hand drive vehicles)
Remove the cover and the lid.
Push the tab in and remove
the cover.
Remove the lid.
Make sure to press the claw
during removal or installation.
Remove the fuse with the pullout tool.
Only type A fuses can be removed using the pullout tool.
3
2ZR-FXE engineM20A-FXS engine

6717-1. Essential information
7
When trouble arises
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■Water level exceeds the floor
When the water level exceeds the floor and time has passed, the electrical
equipment will get damaged, the power windows will not operate, the engine
and motor stop, and the vehicle may not be able to get moving.
■ Using an emergency escape hammer*
Laminated glass is used in the windshield on this vehicle.
Laminated glass cannot be shattered with an emergency hammer*.
Tempered glass is used in the windows on this vehicle.
*: Contact any authorized Toyota retailer or Toyota authorized re pairer, or any
reliable repairer, or aftermarket accessory manufacturer for fu rther informa-
tion about an emergency hammer.
WARNING
■ Caution while driving
Do not drive on roads where the roads may be submerged or the w ater may
be rising. Otherwise the vehicle may be damaged and cannot move , as well
as become flooded and set a drift, which may lead to death.

6787-2. Steps to take in an emergency
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If you think something is wrong
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points higher
than normal
● 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
● Engine misses, 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, spongy feeling, pedal almost touches
the floor
If you notice any of the following symptoms, your vehicle proba -
bly needs adjustment or repair. Contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repaire r as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms