2018 TOYOTA AURIS engine overheat

TABLE OF CONTENTS6
UK AURIS_HV_HB_EE (OM12M49E)
7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ..........412
Cleaning and protecting
the vehicle interior ...........416
7-2. Maintenance
Maintenance
requirements....................419
7-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions ......................422
Hood ..................................424
Positioning a floor jack .......426
Engine compartment..........427
12-volt battery ....................434
Tires ...................................439
Tire inflation pressure ........453
Wheels ...............................455
Air conditioning filter ..........457
Electronic key battery ........459
Checking and replacing
fuses ................................462
Light bulbs .........................467
8-1. Essential information
Emergency flashers .......... 482
If your vehicle has
to be stopped
in an emergency ............. 483
8-2. Steps to take
in an emergency
If your vehicle needs
to be towed ..................... 484
If you think something
is wrong........................... 490
If a warning light turns on
or a warning buzzer
sounds ............................ 491
If a warning message
is displayed ..................... 498
If you have a flat tire
(vehicles with
a spare tire) ..................... 507
If you have a flat tire
(vehicles with
an emergency tire
puncture repair kit) .......... 519
If the hybrid system will
not start ........................... 534
If the electronic key
does not operate
properly ........................... 536
If the 12-volt battery
is discharged ................... 539
If your vehicle
overheats ........................ 544
If the vehicle becomes
stuck................................ 549
7Maintenance and care8When trouble arises

15Pictorial index
UK AURIS_HV_HB_EE (OM12M49E)
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 237
Precautions for winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 314
Precautions for using a car wash . . . . . . . . . . . . . . . . . . . . . . P. 414
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 243
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 243
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 554
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 439
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 560
Winter tires/tire chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 314
Checking/rotation/tire pressure warning system*1 . . . . . . . . . P. 439
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 507
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 424
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 424
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 555
Coping with overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 544
Headlights/front position lig hts/daytime running lights/
turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 227, 229
Front fog lights*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 235
Stop lights/tail lights/turn signal lights . . . . . . . . . . . . P. 227, 229
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 229
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 229
Rear fog light*3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 235
Back-up light*2
Shifting the shift position to R . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 229
Rear fog light*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 235
Back-up light*3
Shifting the shift position to R . . . . . . . . . . . . . . . . . . . . . . . . . P. 219
4
5
6
7
Light bulbs of the ext erior lights for driving
(Replacing method: P. 467, Watts: P. 563)
8
9
10
11
12
13
*1: If equipped
*2: Left-hand drive vehicles
*3: Right-hand drive vehicles

1052. Instrument cluster
UK AURIS_HV_HB_EE (OM12M49E)
2
Instrument cluster
NOTICE
■To prevent damage to the engine and its components
If the high engine coolant temperature warning light is shown, the engine
may be overheating. In this case, immediately stop the vehicle in a safe
place, and check the hybrid system after it has cooled completely.
( P. 544)

1944-1. Before driving
UK AURIS_HV_HB_EE (OM12M49E)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■ When driving the vehicle
● During normal driving, do not turn off the hybrid system. Turning the hybrid
system off while driving will not cause loss of steering or braking control,
but the power assist to these systems will be lost. This will make it more
difficult to steer and brake, so you should pull over and stop the vehicle as
soon as it is safe to do so.
However, in the event of an emergency, such as if it becomes impossible
to stop the vehicle in the normal way: P. 483
● Use engine braking (shift position B) to maintain a safe speed when driv-
ing down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. ( P. 219)
● Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control.
● Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle.

1964-1. Before driving
UK AURIS_HV_HB_EE (OM12M49E)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■ If you hear a squealing or scraping noise (brake pad wear indicators)
Have the brake pads checked and replaced by any authorized Toyota
dealer or repairer, or another duly qualified and equipped professional as
soon as possible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads
and/or those of the brake discs are exceeded.
■ When the vehicle is stopped
● Do not depress the accelerator pedal unnecessarily.
If a shift position other than P or N is selected, the vehicle may accelerate
suddenly and unexpectedly, causing an accident.
● In order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while stopped with the “READY” indicator is
illuminated. Apply the parking brake as necessary.
● If the vehicle is stopped on an incline, in order to prevent accidents caused
by the vehicle rolling forward or backward, always depress the brake pedal
and securely apply the parking brake as needed.
● Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause
the exhaust system to overheat, which could result in a fire if combustible
material is nearby.

2094-1. Before driving
UK AURIS_HV_HB_EE (OM12M49E)
4
Driving
■Sudden acceleration/steering input/cornering
Executing sharp turns when towing ma y result in the trailer colliding
with your vehicle. Decelerate well in advance when approaching
turns and take them slowly and carefully to avoid sudden braking.
■Important points regarding turning
The wheels of the trailer will travel closer to the inside of the curve
than the wheels of the vehicle. To make allowance for this, take the
turns wider than you would normally do.
■Important points regarding stability
Vehicle movement resulting from uneven road surfaces and strong
crosswinds will affect handling. The vehicle may also be rocked by
passing buses or large trucks. Frequently check behind when mov-
ing alongside such vehicles. As soon as such vehicle movement
occurs, immediately start to decel erate smoothly by slowly applying
the brakes. Always steer the vehi cle straight ahead while braking.
■Passing other vehicles
Consider the total combined length of your vehicle and trailer and
ensure that the vehicle-to-vehicle distance is sufficient before exe-
cuting lane changes.
■Transmission information
To maintain engine braking effi ciency and charging system perfor-
mance when using engine braking, do not use the transmission in
D. Shift the shift position to B.
■If the engine overheats
Towing a loaded trailer up a long, steep incline in temperatures
exceeding 30 C (85F) may result in the engine overheating. If the
engine coolant temperature gauge indi cates that the engine is over-
heating, turn the air conditioning off immediately, leave the road and
stop the vehicle in a safe place. ( P. 544)
■When parking the vehicle
Always place wheel chocks under the wheels of both the vehicle
and trailer. Firmly set the parking brake and shift the shift position to
P.

2104-1. Before driving
UK AURIS_HV_HB_EE (OM12M49E)
WARNING
Follow all the instructions described in this section. Failure to do so could
cause an accident resulting in death or serious injury.
■ Trailer towing precautions
When towing, make sure that none of the weight limits are exceeded.
( P. 203)
■ Vehicle speed in towing
Observe the legal maximum speeds for trailer towing.
■ Before descending hills or long declines
Reduce speed then use the engine braking.
■ Operation of the brake pedal
Do not hold the brake pedal depressed often or for long periods of time.
Doing so may result in the brake overheating or reduce braking effects.
■ To avoid accident or injury
● Vehicles with a cruise control: Do not use cruise control when you are tow-
ing.
● Vehicles with a compact spare tire: Do not tow a trailer when the compact
spare tire is installed on your vehicle.
● Vehicles with an emergency tire puncture repair kit: Do not tow a trailer
when the tire installed is repaired with the emergency tire puncture repair
kit.
NOTICE
■ Do not directly splice trailer lights
Directly splicing trailer lights may damage your vehicle's electrical system
and cause a malfunction.

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.