2016 TOYOTA PRIUS PLUS radiator cap

3276-3. Do-it-yourself maintenance
PRIUS +_OM_OM47B24E_(EE)
6
Maintenance and care
Engine compar tment
■12-volt battery
→ P. 337
Engine coolant reservoir
(→ P. 333)
Engine oil level dipstick (→ P. 329)
Engine oil filler cap (→ P. 331)
Power control unit coolant
reservoir ( →P. 333) Fuse box (
→P. 363)
Radiator ( →P. 334)
Condenser ( →P. 334)
Electric cooling fans
Washer fluid tank ( →P. 335)1
2
3
4
5
6
7
8
9

3336-3. Do-it-yourself maintenance
PRIUS +_OM_OM47B24E_(EE)
6
Maintenance and care
The coolant level is satisfactory if it is between the full (“FULL” or “F”)
and low (“LOW” or “L”) lines on the reservoir when the hybrid system
is cold.
■Engine coolant reservoirReservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line. ( →P. 457)
■
Power control unit coolant reservoir Reservoir cap
“F” line
“L” line
If the level is on or below the “L”
line, add coolant up to the “F”
line. ( →P. 457)
■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% deion-
ized water. (Minimum temperature: -35 °C [-31 °F])
For more details about 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
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.
Coolant
1
2
3
1
2
3

3346-3. Do-it-yourself maintenance
PRIUS +_OM_OM47B24E_(EE)
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
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.
Radiator and condenser
WARNING
■ When the hybrid system is hot
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.
■ When the electric cooling fans are operating
Do not touch the engine compartment.
With the power switch in ON mode, the electric cooling fans may automati-
cally start to run if the air conditioning is on and/or the coolant temperature
is high. Be sure the power switch is off when working near the electric cool-
ing fans or radiator grille.

499Alphabetical index
PRIUS +_OM_OM47B24E_(EE)
Navigation system*
Odometer .................................. 113
OilEngine oil .............................. 467
Opener Fuel filler door ....................... 234
Hood ..................................... 323
Outside rear view mirrors ....... 189 Adjustment ............................ 189
Folding .................................. 189
Outside rear view mirror defoggers............................ 283
Outside temperature display .................................... 285
Overhead console.................... 297
Overheating .............................. 457
Overheating, Engine ................ 457 P position switch ..................... 217
Parking brake
Operation .............................. 222
Parking brake engaged warning buzzer ................... 393
Parking lock ............................. 217
PCS (Pre-Crash Safety system) Function ................................ 262
PCS switch ........................... 263
Warning light ......................... 389
Warning message ......... 403, 403
Personal lights ......................... 290 Switch ................................... 291
Wattage ................................ 474
Pollen removal mode .............. 283
Power control unit coolant
Capacity ................................ 470
Checking ............................... 333
Preparing and checking before winter....................... 274
Radiator ................................ 334
Power outlets ........................... 304
Power steering (Electric Power Steering system) ....... 256Warning light ......................... 388
N
O
P
*: Refer to the “Navigation and multimedia system Owner’s Manual”.

500Alphabetical index
PRIUS +_OM_OM47B24E_(EE)
Power switch ............................ 207Auto power off function ......... 211
Changing the power switch modes...................... 210
If your vehicle has to be
stopped in an emergency ... 379
Starting the hybrid system ................................ 207
Power switch light ................... 290
Power windows Jam protection function ......... 191
Operation .............................. 191
Window lock switch ............... 191
Pre-Crash Safety system (PCS) Function ................................ 262
PCS switch............................ 263
Warning light ......................... 389
Warning message ......... 403, 403
Radar cruise control (dynamic radar cruise
control) ................................... 239
Radiator .................................... 334
Radio
*
Rear door sunshades .............. 308
Rear fog light Replacing light bulbs............. 372
Switch ................................... 226
Wattage ................................ 474
Rear passenger’s seat belt reminder light ........................ 392
Rear seat .......................... 174, 179 Adjustment .................... 174, 179
Second seats ........................ 174
Third seats ............................ 179
Rear sunshade ......................... 308
Rear turn signal lights
Replacing light bulbs............. 372
Turn signal lever ................... 221
Wattage ................................ 474
Rear view mirror Inside rear view mirror .......... 187
Outside rear view mirrors...... 189
Rear view monitor system
*
Rear window defogger ............ 283
Rear window wiper .................. 231
Refueling .................................. 232 Capacity ................................ 467
Fuel types ............................. 467
Opening the fuel tank cap ..... 234
Regenerative braking ................ 82
Replacing Electronic key battery ........... 361
Fuses .................................... 363
Light bulbs ............................ 367
Tires .............................. 417, 431
Road accident cautions ............ 89R