2018 TOYOTA PRIUS radiator cap

604
PRIUS_OM_OM47B89U_(U)
7-3. Do-it-yourself maintenance
Engine compartment
Engine coolant reservoir (→ P. 608)
Fuse boxes ( →P. 649)
Engine oil level dipstick (→ P. 605)
Engine oil filler cap ( →P. 606)
Brake fluid reservoir (→ P. 614) 12-volt battery (
→P. 6 1 1 )
Power control unit coolant
reservoir ( →P. 608)
Radiator ( →P. 610)
Condenser ( →P. 610)
Electric cooling fans
Washer fluid tank ( →P. 616)1
2
3
4
5
6
7
8
9
10
11

PRIUS_OM_OM47B89U_(U)
6097-3. 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.

811Alphabetical index
PRIUS_OM_OM47B89U_(U)
Multi-information displayAir conditioning system
settings screen ................... 134
Audio system-linked display ................................ 133
BSM (Blind Spot Monitor) ..... 326
Display contents ................... 114
Drive information................... 116
Driving assist system information.......................... 138
Dynamic radar cruise control
with full-speed range .......... 304
Energy monitor ..................... 117
Language .............................. 142
LDA (Lane Departure Alert with steering control) .......... 298
Navigation system-linked
display ................................ 133
Parking assist system ... 340, 367
Pre-collision warning............. 281
Settings display..................... 139
Warning message display..... 138
Navigation system
*
Noise from under vehicle............ 8
Odometer.................................. 109
Oil Engine oil .............................. 748
Opener Fuel filler door ....................... 270
Hood ..................................... 601
Outside rear view mirrors ....... 202 Adjustment ............................ 202
Blind Spot Monitor ................ 326
Folding .................................. 202
Outside rear view mirror
defoggers ................... 520, 530 Outside temperature
display.................................... 108
Overhead console ................... 545
Overheating ............................. 735
Overheating, Engine ............... 735
P position switch ..................... 241
Panic mode .............................. 167
Parking assist sensors Intelligent Clearance
Sonar.................................. 350
Intuitive parking assist .......... 339
S-APGS (Simple Advanced Parking Guidance
System) .............................. 363
Parking brake
Operation .............................. 247
Parking brake engaged warning buzzer ................... 247
Parking lights Light switch ........................... 248
Replacing light bulbs .... 656, 660
Wattage ................................ 754
Parking lock ............................. 241
PCS (Pre-Collision System) Enabling/disabling the
system .......... ...................... 285
Function ................................ 281
Warning light......................... 674
Personal lights......................... 538 Switch ................................... 539
Wattage ................................ 754
Power control unit coolant Capacity................................ 750
Checking............................... 608
Preparing and checking before winter ...................... 418
Radiator ................................ 610
N
O
P
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

812Alphabetical index
PRIUS_OM_OM47B89U_(U)
Power outlets ........................... 556
Power steering (Electric Power Steering system) ....... 408 Warning light ......................... 674
Power switch............................ 231
Auto power off function ......... 233
Changing the power switch modes...................... 233
If your vehicle has to be stopped in an
emergency.......................... 665
Starting the hybrid system .... 231
Power windows Catch protection function ...... 205
Door lock linked window
operation ............................ 206
Jam protection function......... 205
Operation .............................. 204
Window lock switch............... 204
Pre-Collision System (PCS)
Enabling/disabling the system ......... ....................... 285
Function ................................ 281
Warning light ......................... 674
Radar cruise control (dynamic radar cruise
control with full-speed
range) ..................................... 304
Radiator .................................... 610
Radio......................................... 442
Rear passengers’ seat belt reminder light ........................ 675 Rear seat .................................. 192
Rear side marker lights
Light switch ........................... 248
Rear turn signal lights Replacing light bulbs ............ 657
Turn signal lever ................... 246
Wattage ................................ 754
Rear view mirror
Inside rear view mirror .......... 200
Outside rear view mirrors ..... 202
Rear view monitor system ...... 398
Rear window defogger .... 520, 530
Rear window wiper .................. 266
Refueling .................................. 268
Capacity................................ 747
Fuel types ............................. 747
Opening the fuel tank cap..... 270
When the fuel filler door cannot be opened .............. 271
Regenerative braking ................ 80
Replacing
Electronic key battery ........... 646
Fuses .................................... 649
Light bulbs ............................ 654
Tires.............................. 691, 705
Resetting the message indicating maintenance is
required.................................. 592
Reporting safety defects for U.S. owners...................... 782
Road accident cautions ............ 86
R