engine coolant TOYOTA PRIUS PLUS 2019 User Guide

4497-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
7
When trouble arises
(If equipped)
Hybrid system overheat warning light (warning buzzer)
Indicates that the hybrid system has overheated
This light may come on when driving under severe operat-
ing conditions, and the output of the hybrid system may
temporarily decrease in order to protect the system. (For
example, when driving up a long steep hill or driving up a
steep hill in reverse.)
 Stop the vehicle in a safe place.
Handling method ( P. 520)
(If equipped)
Cruise control indicator (yellow indicator)
Indicates a malfunction in the cruise control
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
(Only outer frame flashes)(If equipped)
Low hybrid battery (traction battery) warning light
(warning buzzer)
Hybrid battery (traction battery) level becomes low
because the shift position is in N for long time
 Because recharging is not possible when the shift
position is in N, shift the shift position to P when
parking the vehicle for a long time.
High coolant temperature warning light
Changes from a flashing to a solid light when the engine
coolant temperature increases
 Immediately stop the vehicle in a safe place.
( P. 518)
Automatic headlight leveling system warning light
Indicates a malfunction in the automatic headlight leveling
system
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Open door warning light (warning buzzer)*3
Indicates that a door is not fully closed
 Check that all the doors are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 6.0 L (1.6
gal., 1.3 Imp.gal.) or less
 Refuel the vehicle.
Warning lightWarning light/Details/Actions

5217-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
7
When trouble arises
After stopping the hybrid system and waiting for 5 minutes or
more, start the hybrid system and check for the instrument clus-
ter or multi-information display.
If the hybrid system overheat warning light does not turn off or
the message does not disappear:
Stop the hybrid system and contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
If the hybrid system overheat warning light does not come on or
the message is not displayed:
The hybrid system temperature has dropped and the vehicle may
be driven normally.
However, if the warning light comes on again frequently or the message
appears again frequently, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
WARNING
■ When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
● After the hybrid system has been turned off, check that the indicator on the
power switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automati-
cally start, or the cooling fan may suddenly operate even if the gasoline
engine stops. Do not touch or approach rotating parts such as the fan,
which may lead to fingers or clothing (especially a tie, a scarf or a muffler)
getting caught, resulting in serious injury.
● Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
High temperature steam or coolant could spray out.
6

5227-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently.
Adding cool coolant to a hot hybrid system too quickly can cause damage to
the hybrid system.
■ To prevent damage to the cooling system
Observe the following precautions:
● Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
● Do not use any coolant additive.

5328-1. Specifications
PRIUS +_OM_OM47D30E_(EE)
Cooling system
Capacity
Gasoline
engine
Without an exhaust heat recirculator sys-
tem
6.5 L (6.9 qt., 5.7 Imp.qt.)
With an exhaust heat recirculator system
6.9 L (7.3 qt., 6.1 Imp.qt.)
Power
control unit2.7 L (2.9 qt., 2.4 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-
based non-silicate, non-amine, non-
nitrite, and non-borate coolant with
long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system (spark plug)
MakeDENSO SC20HR11 or SC16HR11
Gap1.1 mm (0.043 in.)
NOTICE
■ Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

556Alphabetical index
PRIUS +_OM_OM47D30E_(EE)
Emergency, in case of
If a warning buzzer sounds ... 444
If a warning light turns on ...... 444
If a warning message is
displayed ............................ 458
If the 12-volt battery is
discharged .......................... 513
If the electronic key does not
operate properly ................. 511
If the hybrid system will not
start..................................... 509
If the vehicle is trapped in
rising water ......................... 436
If you have a flat tire...... 478, 492
If you lose your keys ............. 143
If you think something is
wrong .................................. 443
If your vehicle becomes
stuck ................................... 523
If your vehicle has to be
stopped in an emergency ... 435
If your vehicle needs to be
towed .................................. 437
If your vehicle overheats ....... 518
Energy monitor ........................ 134Engine
Accessory mode ................... 227
Compartment ........................ 379
Engine switch........................ 224
Exhaust gas precautions ........ 80
Hood ..................................... 375
How to start the hybrid
system ................................ 224
Identification number ............ 528
If the hybrid system will not
start .................................... 509
If your vehicle has to be
stopped in an emergency ... 435
Ignition switch
(power switch) .................... 224
Overheating .......................... 518
Power switch......................... 224
Engine coolant
Capacity ................................ 532
Checking ............................... 385
Preparing and checking
before winter....................... 327
Engine coolant temperature
warning light .......................... 449

561Alphabetical index
PRIUS +_OM_OM47D30E_(EE)
Navigation system*
Odometer .................................. 119
Oil
Engine oil .............................. 529
Opener
Fuel filler door ....................... 258
Hood ..................................... 375
Outside rear view mirrors ....... 206
Adjustment ............................ 206
Folding .................................. 206
Outside rear view mirror
defoggers............................ 335
Outside temperature
display .................................... 337
Overhead console.................... 349
Overheating .............................. 518
Overheating, Engine ................ 518
P position switch ..................... 234
Parking brake
Operation .............................. 240
Parking brake engaged
warning buzzer ................... 451
Parking lock ............................. 234
PCS (Pre-Crash Safety system)
Function ................................ 271
Warning light ......................... 446
Warning message ......... 463, 465Personal lights ......................... 342
Switch ................................... 343
Wattage ................................ 536
Pollen removal mode .............. 335
Power control unit coolant
Capacity ................................ 532
Checking ............................... 385
Preparing and checking
before winter....................... 327
Radiator ................................ 386
Power outlets ........................... 356
Power steering (Electric
Power Steering system) ....... 318
Warning light ......................... 445
Power switch............................ 224
Auto power off function ......... 228
Changing the power
switch modes...................... 227
If your vehicle has to be
stopped in an emergency ... 435
Starting the hybrid
system ................................ 224
Power switch light ................... 342
Power windows
Jam protection function......... 208
Operation .............................. 208
Window lock switch............... 208
Pre-Crash Safety system (PCS)
Function ................................ 271
Warning light ......................... 446
Warning message ......... 463, 465
N
O
P
*: Refer to the “Navigation and multimedia system Owner’s Manual”.

566Alphabetical index
PRIUS +_OM_OM47D30E_(EE)
Warning lights
ABS ....................................... 445
Automatic headlight leveling
system ................................ 449
Brake Override System ......... 213
Brake system ........................ 444
Charging system ................... 444
Cruise control ........................ 449
Drive-Start Control ................ 213
Driver’s seat belt reminder .... 450
Electronic engine control
system ................................ 445
Electric power steering.......... 445
Front passenger’s seat belt
reminder ............................. 450
Go to service ......................... 451
High coolant temperature...... 449
Hybrid battery indicator ......... 448
Hybrid system ....................... 445
Hybrid system overheat ........ 449
LED headlight ....................... 448
Low engine oil pressure ........ 445
Low fuel level ........................ 449
Low hybrid battery
(traction battery) ................. 449
Malfunction indicator lamp .... 445
Master warning light .............. 450
Open door ............................. 449
Parking lock system ...... 447, 448
P position request
indicator .............................. 448
PCS....................................... 446
Rear passenger’s seat belt
reminder ............................. 450
Seat belt reminder light ......... 450
Slip indicator ......................... 446
SRS....................................... 445
Tire pressure ......................... 450Warning messages .................. 458
Washer
Checking ............................... 387
Preparing and checking
before winter....................... 327
Switch ........................... 251, 255
Washing and waxing ............... 362
What to do if...
(Troubleshooting) ................. 548
Wheels ...................................... 411
Replacing wheels.................. 478
Size ....................................... 535
Window glasses....................... 208
Window lock switch ................ 208
Windows
Power windows ..................... 208
Rear window defogger .......... 335
Washer ......................... 251, 255
Windshield wipers ................... 251
Winter driving tips ................... 327
Wireless communication
*
Wireless remote control
key .......................................... 140
Locking/Unlocking................. 140
Replacing the battery ............ 417
WMA disc
*