2012 TOYOTA YARIS HYBRID coolant reservoir

467
4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_F (including HV)_WE_52C79E
Engine compartment
1KR-FE engine
Fuse boxes (P. 510)
Engine oil level dipstick
(P. 471)
Engine oil filler cap
(P. 474)
Battery (P. 482)Engine coolant reservoir
(P. 478)
Electric cooling fan
Condenser (P. 481)
Radiator (P. 481)
Washer fluid tank (P. 485)

468 4-3. Do-it-yourself maintenance
YARIS_F (including HV)_WE_52C79E
1NR-FE engine
Fuse boxes (P. 510)
Engine oil filler cap
(P. 474)
Engine oil level dipstick
(P. 471)
Battery (P. 482)Engine coolant reservoir
(P. 478)
Electric cooling fan
Condenser (P. 481)
Radiator (P. 481)
Washer fluid tank (P. 485)

469 4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_F (including HV)_WE_52C79E
1ND-TV engine
Fuse boxes (P. 510)
Engine oil filler cap
(P. 474)
Engine oil level dipstick
(P. 471)
Fuel filter (P. 486)
Battery (P. 482)Intercooler (P. 481)
Electric cooling fan
Condenser (P. 481)
Radiator (P. 481)
Engine coolant reservoir
(P. 478)
Washer fluid tank (P. 485)

470 4-3. Do-it-yourself maintenance
YARIS_F (including HV)_WE_52C79E
1NZ-FXE engine
Fuse boxes (P. 510)
Engine oil filler cap
(P. 474)
Engine coolant radiator cap
Power control unit
coolant reservoir (P. 479)
Engine coolant reservoir
(P. 479)Engine/power control unit
coolant radiator (P. 481)
Electric cooling fan
Condenser (P. 481)
Engine oil level dipstick
(P. 471)
Washer fluid tank (P. 485)

478 4-3. Do-it-yourself maintenance
YARIS_F (including HV)_WE_52C79E
Engine coolant (except hybrid vehicle)
The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when the engine is cold.
Gasoline engine
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line. (P. 667)
Diesel engine
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to the
“FULL” line. (P. 667)

479 4-3. Do-it-yourself maintenance
4
Maintenance and care
YARIS_F (including HV)_WE_52C79E
Coolant (hybrid vehicle)
Engine coolant reservoir
The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir when 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. (P. 667)
Power control unit coolant reservoir
The coolant level is satisfactory if it is between the “F” and “L” lines on
the reservoir when the hybrid system is cold.
Reservoir cap
“F” line
“L” line
If the level is on or below the “L”
line, add coolant up to the “F” line.
(P. 667)

480 4-3. Do-it-yourself maintenance
YARIS_F (including HV)_WE_52C79E
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-borate coolant
with long-life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50%
deionized water. (Minimum temperature: -35C [-31F])
For more details about engine coolant, contact any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
If the coolant level drops within a short time of replenishing
Except hybrid vehicle: Visually check the radiator, hoses, engine coolant res-
ervoir cap, drain cock and water pump.
Hybrid vehicle: Visually check the radiator, hoses, engine/power control unit
coolant reservoir caps, drain cock and water pump.
If you cannot find a leak, have any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional, test the cap and check for
leaks in the cooling system.
CAUTION
When the engine is hot (except hybrid vehicle)
Do not remove the radiator cap (gasoline engine), or the engine coolant res-
ervoir cap (diesel engine).
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
When the hybrid system is hot (hybrid vehicle)
Do not remove the engine/power control unit coolant reservoir caps.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.

5
637 5-2. Steps to take in an emergency
When trouble arises
YARIS_F (including HV)_WE_52C79E
Overheating
If you observe the following, your vehicle may be overheating:
The high engine coolant temperature warning light flashes or comes on
or a loss of power is experienced.
Steam comes out from under the hood.
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 injuries such as burns.
Keep hands and clothing away from the fan and drive belt while the engine
is running.
Do not loosen the radiator cap, or the coolant reservoir cap while the
engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
Diesel engine
Have the vehicle inspected at the nearest authorized Toyota dealer
or repairer, or another duly qualified and equipped professional as
soon as possible.