radiator cap TOYOTA PRIUS 2020 Owners Manual (in English)

506
PRIUS_OM_OM47D44U_(U)
6-3. Do-it-yourself maintenance
Engine compartment
Engine coolant reservoir ( P. 510)
Fuse boxes ( P. 551)
Engine oil level dipstick ( P. 507)
Engine oil filler cap ( P. 508)
Brake fluid reservoir ( P. 516) 12-volt battery (
P. 512)
Power control unit coolant
reservoir ( P. 510)
Radiator ( P. 512)
Condenser ( P. 512)
Electric cooling fans
Washer fluid tank ( P. 518)1
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3
4
5
6
7
8
9
10
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PRIUS_OM_OM47D44U_(U)
5116-3. Do-it-yourself maintenance
6
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-bora te 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 c oolant 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 c aps.
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.

720Alphabetical index
PRIUS_OM_OM47D44U_(U)
Personal lights ......................... 446Switch ................................... 447
Wattage ................................ 662
Power control unit coolant ..... 510 Capacity ................................ 658
Checking ............................... 510
Preparing and checking before winter....................... 418
Radiator ................................ 512
Power outlets ........................... 462
Power steering (Electric Power Steering) ..................... 409 Function ................................ 409
Warning light ......................... 581
Power switch............................ 241 Auto power off function ......... 243
Automatic hybrid system shut off feature ........................... 245
Changing the power switch modes................................. 243
If your vehicle has to be stopped in an emergency ... 569
Starting the hybrid system .... 241
Power windows........................ 214 Catch protection function ...... 215
Door lock linked window operation ............................ 216
Jam protection function......... 215
Operation .............................. 214
Window lock switch............... 214
Pre-Collision System (PCS) .... 292 Enabling/disabling the system ......... ....................... 296
Function ................................ 292
Warning light ......................... 581
Radar cruise control Dynamic radar cruise control
with full-speed range .......... 315
Radiator .................................... 512
Radio
*
RCTA (Rear Cross Traffic Alert)....................................... 345
Blind Spot Monitor function............................... 342
Rear Cross Traffic Alert
function............................... 345
Rear Cross Traffic Alert (RCTA).................................... 345
Blind Spot Monitor function............................... 342
Rear Cross Traffic Alert
function............................... 345
Rear passengers’ seat belt reminder light ........................ 583
Rear seat .................................. 202
Rear side marker lights........... 259 Light switch ........................... 259
Replacing light bulbs ............ 560
Wattage ................................ 662
Rear turn signal lights ............ 257
Replacing light bulbs ............ 560
Turn signal lever ................... 257
Wattage ................................ 662
Rear view mirror Inside rear view mirror .......... 210
Outside rear view mirrors ..... 212
Rear view monitor system
*
Rear window defogger .... 428, 438
Rear window wiper .................. 277
Refueling .................................. 279
Capacity................................ 655
Fuel types ............................. 655
Opening the fuel tank cap..... 281
When the fuel filler door cannot be opened .............. 282
Regenerative braking ................ 85
Replacing
Electronic key battery ........... 548
Fuses .................................... 551
Light bulbs ............................ 556
Tires...................................... 619
Wiper insert .......................... 544
Reporting safety defects for U.S. owners...................... 690
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