2018 TOYOTA AURIS engine

4317-3. Do-it-yourself maintenance
UK AURIS_HV_HB_EE (OM12M49E)
7
Maintenance and care
Power control unit coolant reservoir
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line.
■ 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 engine 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.
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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 pr ovide 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.

4337-3. Do-it-yourself maintenance
UK AURIS_HV_HB_EE (OM12M49E)
7
Maintenance and care
WARNING
■When adding washer fluid
Do not add washer fluid when the hybrid system is hot or operating as
washer fluid contains alcohol and may catch fire if spilled on the engine etc.
NOTICE
■ Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces, as well as
damaging the pump leading to problems of the washer fluid not spraying.
■ Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.

4627-3. Do-it-yourself maintenance
UK AURIS_HV_HB_EE (OM12M49E)
Turn the power switch off.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid off.
Under the driver’s side instrument panel (left-hand drive vehicles)
Ty p e A :
Remove the lid.
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.
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4908-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
●Fluid leaks under the vehicle.
(Water dripping from the air co nditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● The high engine coolant temperature display is shown on the multi-
information display.
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
● Engine missing, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touches
the floor
If you think something is wrong
If you notice any of the follow ing symptoms, your vehicle proba-
bly needs adjustment or repair. Contact any authorized Toyota
dealer or repairer, or anothe r duly qualified and equipped pro-
fessional as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

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.

4928-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
Malfunction indicator lamp
Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
Electric power steering syst em warning light (warning
buzzer)
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
(Comes on)
Slip indicator
Indicates a malfunction in:
• The VSC (Vehicle Stability Control) system;
• The TRC (Traction Control) system; or
• The hill-start assist control system
The light will flash when the ABS, VSC or the TRC is oper-
ating. ( P. 306)
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
Warning lightWarning light/Details/Actions

5058-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
8
When trouble arises
Take the appropriate actions as instructed in the message displayed.
If any of the following messages are displayed, also refer to this
Owner’s Manual.
■If “Check charging system.” is displayed
Indicates a malfunction in t he vehicle's charging system.
Immediately stop the vehicle in a safe place and contact any autho-
rized Toyota dealer or repairer, or another duly qualified and
equipped professional.
■If “Engine oil pressure low.” is displayed
Indicates that the engine oil pressure is too low.
Immediately stop the vehicle in a safe place and contact any autho-
rized Toyota dealer or repairer, or another duly qualified and
equipped professional.
■When “Headlight system malfunction. Visit your dealer.” is
displayed on the multi-information display (if equipped)
The following systems may be malfunctioning. Have the vehicle
inspected by any autho rized Toyota dealer or repairer, or another
duly qualified and equipped professional immediately.
● The LED headlight system
● The automatic headlight leveling system
● Automatic High Beam
■If “Front sensor systems are temporarily unavailable due to
inappropriate temp. Wait a moment.” or “Front Camera Vision
Blocked Clean and Demist Wi ndshield.” is displayed (if
equipped)
The following systems may be suspended until the problem shown
in the message is resolved.
● PCS (Pre-Crash Safety system)
● LDA (Lane Departure Alert)
● Automatic High Beam
● RSA (Road Sign Assist)
Other messages displayed on the multi-information display

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.