2018 TOYOTA AURIS coolant temperature

5068-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
■If “Shift to P before exiting vehicle.” is displayed
Message is displayed when the driver’s door is opened without
turning the power switch to off with the shift position in any position
other than P.
Change the shift position to P.
■If “Shift is in N. Release accel erator before shifting.” is dis-
played
Message is displayed when the accelerator pedal has been
depressed and the shift position is in N.
Release the accelerator pedal and change the shift position to D or
R.
■ System warning lights
In the following situations, the master warning light will not come on or flash.
Instead, a separate system warning light will come on along with a message
displayed on the multi-information display.
● Malfunction of the brake system
The brake system warning light will come on. ( P. 491)
● High engine coolant temperature
The high engine coolant temperature warning light will be displayed.
( P. 491)
■ Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an
audio sound.

5448-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
●The high engine coolant temperature (P. 491) is shown on the
multi-information display or a loss of hybrid system power is experi-
enced (for example, the vehicle speed does not increase).
● “Hybrid system overheated. Reduced output power.” is shown on
the multi-information display.
● Steam comes out from under the hood.
■If the high engine coolant temperature is shown on the multi-
information display
Stop the vehicle in a safe place and turn off the air conditioning
system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled down sufficiently,
inspect the hoses and radia-
tor core (radiator) for any
leaks.
Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact
any authorized Toyota dealer
or repairer, or another duly
qualified and equipped pro-
fessional.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
1
2

5458-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
8
When trouble arises
The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.
Reservoir
“FULL”
“LOW”
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to
check that the radiator coolin g fans operate and to check for
coolant leaks from th e radiator or hoses.
The fans operate when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fans are operating by checking
the fan sound and air flow. If it is difficult to check these, turn the air con-
ditioning system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fans are not operating:
Stop the hybrid system immedi ately and contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped
professional.
If the fans are operating:
Have the vehicle inspected at the nearest authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
4
1
2
3
5
6
7

5478-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
8
When trouble arises
Start the hybrid system and check for the multi-information dis-
play.
If the message does not disappear:
Stop the hybrid system and cont act any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
If the message is not displayed:
Have the vehicle inspected at the nearest authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
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 caps while the hybrid system and radi-
ator are hot.
High temperature steam or coolant could spray out.
6

591Alphabetical index
UK AURIS_HV_HB_EE (OM12M49E)
Warning buzzers
Brake system ....... ................. 491
Electric power steering
system .......... ...................... 492
LDA
(Lane Departure Alert) ........ 265
Open back door .................... 130
Open door ............................. 127
Pre-crash warning ................. 252
RSA (Road Sign Assist) ........ 274
Seat belt reminder................. 493
Toyota parking
assist-sensor ...................... 284
Warning lights ............................ 99
ABS ....................................... 492
Brake system ....... ................. 491
Electric power steering
system .......... ...................... 492
High engine coolant
temperature warning light ... 491
Low fuel level ........................ 493
Malfunction indicator lamp .... 492
Master warning light .............. 494
PCS warning light ................. 493
Seat belt reminder light ......... 493
Slip indicator ......................... 492
SRS warning light ................. 492
Tire pressure warning light.... 494
Warning messages .................. 498
Washer.............................. 237, 241
Checking ............................... 432
Preparing and checking
before winter....................... 314
Switch ........................... 237, 241
Washing and waxing ............... 412
Weight....................................... 552
Wheels ...................................... 455
Replacing .............................. 455
Size ....................................... 560
Window glasses....................... 186
Window lock switch ................ 186
Windows ................................... 186
Power windows ..................... 186
Rear window defogger .......... 384
Windshield wipers ................... 237
Intermittent wiper with
interval adjuster .................. 237
Rain-sensing windshield
wipers ................................. 238
Winter driving tips ................... 314
Wireless remote control key... 120
Battery-saving
function ....................... 136, 156
Locking/Unlocking................. 124
Replacing the battery ............ 459
WMA disc*............................... 326
W
*: For vehicles with navigation/multimedia system, refer to “Navigation
and multimedia system Owner’s manual”.