580
PRIUS PRIME_OM_OM47A88U_(U)
7-3. Do-it-yourself maintenance
Engine compartment
Engine coolant reservoir (→ P. 584)
Fuse boxes ( →P. 630)
Engine oil level dipstick (→ P. 581)
Engine oil filler cap ( →P. 582)
Brake fluid reservoir (→ P. 590) Washer fluid tank (
→P. 592)
12-volt battery ( →P. 587)
Power control unit coolant
reservoir ( →P. 584)
Radiator ( →P. 586)
Condenser ( →P. 586)
Electric cooling fans1
2
3
4
5
6
7
8
9
10
11
PRIUS PRIME_OM_OM47A88U_(U)
5857-3. Do-it-yourself maintenance
7
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% deion-
ized water. (Minimum temperature: -31 °F [-35 °C])
Canada:
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deion-
ized 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 radiator, hoses, engine/power control unit coolant reservoir
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 system.
WARNING
■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.
776Alphabetical index
PRIUS PRIME_OM_OM47A88U_(U)
Power control unit coolant ..... 584Capacity ................................ 714
Checking ............................... 584
Preparing and checking before winter....................... 482
Radiator ................................ 586
Power outlets ........................... 531
Power sources ......................... 122
Power steering (Electric Power Steering system) ....... 477 Function ................................ 477
Warning light ......................... 654
Power switch............................ 324 Auto power off function ......... 326
Changing the power
switch modes...................... 326
If your vehicle has to be
stopped in an emergency ... 645
Starting the hybrid system .... 324
Power windows........................ 300
Catch protection function ...... 301
Door lock linked window operation ............................ 302
Jam protection function......... 301
Operation .............................. 300
Window lock switch............... 300
Pre-Collision System (PCS) .... 369
Enabling/disabling the system ......... ....................... 373
Function ................................ 369
Warning light ......................... 654 Radar cruise control
(dynamic radar cruise
control with full-speed
range) ..................................... 391
Radiator .................................... 586
Radio
*
Rear passengers’ seat belt reminder light ........................ 656
Rear seat .................................. 289
Rear side marker lights........... 338 Light switch ........................... 338
Replacing light bulbs ............ 640
Rear turn signal lights ............ 336 Replacing light bulbs ............ 640
Turn signal lever ................... 336
Rear view mirror Inside rear view mirror .......... 296
Outside rear view mirrors ..... 298
Rear view monitor system
*
Rear window defogger .... 491, 502
Refueling .................................. 356 Capacity................................ 710
Fuel types ............................. 710
Opening the fuel tank cap..... 358
When the fuel filler door cannot be opened .............. 359
Regenerative braking ................ 86
Remote Air Conditioning
System ................................... 509
Replacing
Electronic key battery ........... 627
Fuses .................................... 630
Light bulbs ............................ 635
Tires...................................... 609
Wiper rubber ......................... 624
Reporting safety defects
for U.S. owners...................... 746
Resetting the message indicating maintenance is
required.................................. 568
Road accident cautions ............ 94
R
