2018 TOYOTA AURIS warning lights

2644-5. Toyota Safety Sense
UK AURIS_HV_HB_EE (OM12M49E)
■ If the PCS warning light flashes or illuminates and a warning message is
displayed on the multi -information display
The pre-crash safety system may be tem porarily unavailable or there may be
a malfunction in the system.
● In the following situations, the warning light will turn off, the message will
disappear and the system will become operational when normal operating
conditions return:
• When the area around the front sensor is hot, such as in the sun
• When the windshield is fogged up or covered with condensation or ice
( P. 384)
• When driving in conditions where the front sensor cannot detect an
object, such as in the dark (at night on a road without street lights or other
lights, etc.), when bright light is shining into the sensor, or in snow or fog.
• When the front sensor or the area around ei ther sensor is cold, such as in
an extremely cold environment
• If the area in front of the front sensor is obstructed, such as when the
hood is open
● If the PCS warning light continues to flash or illuminate or the warning mes-
sage does not disappear, the system may be malfunctioning. Have the vehi-
cle inspected by any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional immediately.
■ If VSC is disabled
● If TRC and VSC are disabled (P. 307), the pre-crash safety brake assist
and pre-crash safety braking functions are also disabled. However, the pre-
crash safety warning function will still operate.
● The PCS warning light illuminates and “Pre-Crash Brake is disabled due to
VSC OFF.” is displayed on the multi-information display.

2664-5. Toyota Safety Sense
UK AURIS_HV_HB_EE (OM12M49E)
WARNING
■Before using the LDA system
Do not rely solely upon the LDA system. LDA is not a system which auto-
matically drives the vehicle or reduces the amount of attention that must be
paid to the area in front of the vehicle. The driver must always assume full
responsibility for driving safely by always paying careful attention to the sur-
rounding conditions and operate the steering wheel to correct the path of
the vehicle. Also, make sure to take adequate breaks when fatigued, such
as from driving for a long period of time.
Failure to perform appropriate driving operations and pay careful attention
may lead to an accident, resulting in death or serious injury.
■ To avoid operating the LDA by mistake
When not using the LDA system, use the LDA switch to turn the system off.
■ Preventing LDA system malfunctions and operations performed by
mistake
● Do not modify the headlights or place stickers, etc., on the surface of the
lights.
● Do not modify the suspension etc. If the suspension etc. needs to be
replaced, contact any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional.
● Do not install or place anything on the hood or grille. Also, do not install a
grille guard (bull bars, kangaroo bar, etc.).
● If your windshield needs repairs, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.

2694-5. Toyota Safety Sense
UK AURIS_HV_HB_EE (OM12M49E)
4
Driving
■Conditions in which functions may not operate properly
In the following situations, the front sensor may not detect white (yellow) lines
and various functions may not operate normally.
● There are shadows on the road that run parallel with, or cover, the white
(yellow) lines.
● The vehicle is driven in an area without white (yellow) lines, such as in front
of a tollgate or checkpoint, or at an intersection, etc.
● The white (yellow) lines are cracked, or cat's eyes (reflective markers) or
stones are present.
● The white (yellow) lines cannot be seen or are difficult to see due to sand,
etc.
● The vehicle is driven on a road surface that is wet due to rain, puddles, etc.
● The traffic lines are yellow (which may be more difficult to recognize than
lines that are white).
● The white (yellow) lines cross over a curb, etc.
● The vehicle is driven on a bright surface, such as concrete.
● The vehicle is driven on a surface that is bright due to reflected light, etc.
● The vehicle is driven in an area where the brightness changes suddenly,
such as at the entrances and exits of tunnels, etc.
● Light from the headlights of an oncoming vehicle, the sun, etc., enters the
camera.
● The vehicle is driven where the road diverges, merges, etc.
● The vehicle is driven on a slope.
● The vehicle is driven on a road which tilts left or right, or a winding road.
● The vehicle is driven on an unpaved or rough road.
● The vehicle is driven around a sharp curve.
● The traffic lane is excessively narrow or wide.
● The vehicle is extremely tilted due to carrying heavy luggage or having
improper tire pressure.
● The distance to the preceding vehicle is extremely short.
● The vehicle is moving up and down a large amount due to road conditions
during driving (poor roads or road seams).
● The headlight lenses are dirty and emit a faint amount of light at night, or the
beam axis has deviated.
● The vehicle has just changed lanes or crossed an intersection.
■ Warning messages for the LDA system
Warning messages are used to indicate a system malfunction or to inform the
driver of the need for caution while driving.
■ Customization
 P. 109

2704-5. Toyota Safety Sense
UK AURIS_HV_HB_EE (OM12M49E)
Push the lever away from you with
the headlight switch in
position.
The Automatic High Beam indica-
tor will come on when the head-
lights are turned on automatically
to indicate that the system is
active.
Automatic High Beam
: If equipped
The Automatic High Beam uses an in-vehicle front sensor to
assess the brightness of streetlights, the lights of vehicles
ahead etc., and automatically turns the high beam on or off as
necessary.
WARNING
■ Limitations of the Automatic High Beam
Do not rely on the Automatic High Beam. Always drive safely, taking care to
observe your surroundings and turning the high beam on or off manually if
necessary.
■ To prevent incorrect operation of the Automatic High Beam system
Do not overload the vehicle.
Activating the Automatic High Beam system

4667-3. Do-it-yourself maintenance
UK AURIS_HV_HB_EE (OM12M49E)
■After a fuse is replaced
● If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. ( P. 467)
● If the replaced fuse blows again, have the vehicle inspected by any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
■ If there is an overload in a circuit
The fuses are designed to blow, pr otecting the wiring harness from damage.
■ When replacing light bulbs
Toyota recommends that you use genuine Toyota products designed for this
vehicle. Because certain bulbs are connected to circuits designed to prevent
overload, non-genuine parts or parts not designed for this vehicle may be
unusable.
WARNING
■ To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.
● Never use a fuse of a higher amperage rating than that indicated, or use
any other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
● Do not modify the fuses or fuse boxes.
■ Fuse box near the power control unit
Never check or replace the fuses as there are high voltage parts and wiring
near the fuse box.
Doing so may cause electric shock, resulting in death or serious injury.
NOTICE
■ Before replacing fuses
Have the cause of electrical overload determined and repaired by any
authorized Toyota dealer or repairer, or another duly qualified and equipped
professional as soon as possible.

4807-3. Do-it-yourself maintenance
UK AURIS_HV_HB_EE (OM12M49E)
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by
any authorized Toyota dealer or r epairer, or another duly qualified
and equipped professional.
● Headlights (vehicles with LED headlights)
● Front position lights/daytime running lights
● High mounted stoplight
● Tail lights
● Rear fog light
■LED light bulbs
The headlights (vehicles with LED head lights), rear fog light, high mounted
stoplight, front position lights/daytime running lights and tail lights consist of a
number of LEDs. If any of the LEDs burn out, take your vehicle to any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped profes-
sional to have the light replaced.
■ Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not
indicate a malfunction.
Contact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional for more information in the following situations:
● Large drops of water have built up on the inside of the lens.
● Water has built up inside the headlight.
■ When replacing light bulbs
 P. 466
WARNING
■Replacing light bulbs
● Turn off the lights. Do not attempt to replace the bulb immediately after
turning off the lights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the light bulb with bare hands. When it is
unavoidable to hold the glass portion, use and hold with a clean dry cloth
to avoid getting moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Failure to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
■ To prevent damage or fire
Make sure bulbs are fully seated and locked.

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.

4948-2. Steps to take in an emergency
UK AURIS_HV_HB_EE (OM12M49E)
*1: Brake system warning buzzer:
When there is a possible problem that could affect braking performance,
the warning light will come on and a warning buzzer will sound.
Parking brake engaged warning buzzer:
The buzzer sounds to indicate that the parking brake is still engaged (with
the vehicle having reached a speed of 5 km/h [3 mph]).
*2: Driver’s and passengers’ seat belt buzzer:
The driver’s and passengers’ seat belt buzzer sounds to alert the driver
and passengers that his or her seat belt is not fastened. The buzzer
sounds for 30 seconds after the vehicle reaches a speed of at least 20
km/h (12 mph). Then, if the seat belt is still unfastened, the buzzer will
sound in a different tone for 90 more seconds.
Rear passengers’ seat belt reminder lights (warning
buzzer)*2
Warns the rear passengers to fasten their seat belts.
 Fasten the seat belt.
(If equipped)
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( P. 495)
• Flat tire ( P. 507, 519)
 Adjust the tire inflation pressure to the specified
level.
The light will turn off after a few minutes. In case the
light does not turn off even if the tire inflation pres-
sure is adjusted, have the system checked by any
authorized Toyota dealer or repairer, or another duly
qualified and equi pped professional.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system ( P. 496)
 Have the system checked by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional.
Master warning light
A buzzer sounds and the warning light comes on and
flashes to indicate that the master warning system has
detected a malfunction.
 P. 498
Warning lightWarning light/Details/Actions