Page 429 of 612
429
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine compar tment
Fuse box (P. 460)
Engine oil filler cap ( P. 431)
Engine oil level dipstick ( P. 430)
Brake fluid reservoir ( P. 436)
Engine coolant
radiator ( P. 436)Power control unit
coolant radiator ( P. 436)
Condenser ( P. 436)
Electric cooling fans
Engine coolant
reservoir ( P. 434)
Washer fluid tank ( P. 438)
Power control unit
coolant reservoir ( P. 434)
Page 435 of 612

435
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
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.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Minimum temperature: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44 F [-42 C])
For more details about coolant, contact your Toyota dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiators, hoses, engine/power control unit coolant reser-
voir caps, 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 systems.
CAUTION
■When the hybrid system is hot
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.
NOTICE
■When adding coolant
Coolant is neither plain water nor stra ight 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 coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.
Page 543 of 612
5
When trouble arises
543
5-2. 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” (Full)
“L” (Low)
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 fans operate and to
check for coolant leaks from the radiator or hoses.
The fans operate when the air conditioning system is turned on
immediately after a cold start. Conf irm that the fans are 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 fans may not operate in freezing temperatures.)
STEP4
STEP5
STEP6
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605
Alphabetical index
Radiator.................................... 436
Radio ........................................ 272
Rear seats
Folding down .......................... 79
Rear side marker lights
Replacing light bulb .............. 471
Switch ................................... 192
Wattage ................................ 560
Rear turn signal lights Replacing light bulbs ............ 471
Wattage ................................ 560
Rear view mirror Compass .............................. 398
Rear window defogger............ 248
Replacing
Fuses.................................... 460
Key battery ........................... 458
Light bulbs ............................ 471
Tires ..................................... 519
Reporting safety defects for
U.S.A. owners........................ 584 Safety Connect .........................402
Seat belts
Adjusting the seat belt .............83
Automatic Locking Retractor ...............................85
Child restraint system installation ...........................135
Cleaning and maintaining
the seat belts ......................414
Emergency Locking Retractor ...............................85
How to wear your seat belt......83
How your child should wear the seat belt ..........................86
Pregnant women, proper seat belt use ..............85
Reminder light .......................493
Seat belt extenders .................86
Seat belt pretensioners ...........84
Seat heaters..............................383
Seating capacity.......................228RS