Page 491 of 592

4918-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
8
When trouble arises
If a warning light turns on or a warning
buzzer sounds
Calmly perform the following acti ons if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessaril y indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by any authorized Toyota dealer or repairer, or
another duly qualified a nd equipped professional.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
Brake system warning light in red (warning buzzer)*1
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released the system is operating normally.
Immediately stop the vehicle in a safe place and con-
tact any authorized Toyo ta dealer or repairer, or
another duly qualified a nd equipped professional.
Continuing to drive the vehicle may be dangerous.
Brake system warning light in yellow
Indicates a malfunction in:
• The regenerative brake system; or
• The electronically controlled brake system
Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
High engine coolant temperature warning light
Indicates that the engine is almost overheating. ( P. 544)
Immediately stop the vehicle in a safe place and con-
tact any authorized Toyo ta dealer or repairer, or
another duly qualified and equipped professional.
Page 545 of 592

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
Page 546 of 592
5468-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
■If “Hybrid system overheated. Reduced output power.” is
shown on the multi-information display
Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has
cooled down, inspect the
hoses and radiator 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.
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.
1
2
3
1
2
4
1
2
3
5
Page 591 of 592

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”.