Page 254 of 661

2544-5. Toyota Safety Sense
UK AURIS_HB_EE (OM12K97E)
The front sensor is located on the
upper side of the windshield. It
consists of 2 types of sensors,
each of which detects information
necessary to operate the drive
assist systems.
Laser sensors
Monocular camera sensor
Front sensor
1
2
WARNING
■Front sensor
The front sensor uses lasers to detect vehicles ahead of your vehicle. The
front sensor is classified as class 1M laser product according to the IEC
60825-1 standard. Under normal usage conditions, these lasers are not
harmful to the naked eye. However, it is necessary to observe the following
precautions.
Failure to do so may result in the loss of eyesight or severe visual impair-
ment.
●To avoid hazardous laser radiation exposure, never attempt to disassem-
ble the front sensor (e.g. remove the lenses). When disassembled, the
front sensor is classified as a class 3B laser product according to the IEC
60825-1 standard. Class 3B lasers are hazardous and pose a risk of eye
injury under direct exposure.
●Do not attempt to look into the front sensor with a magnifying glass, micro-
scope or other optical instrument within a distance of less than 100 mm
(3.9 in.).
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Page 275 of 661

2754-5. Toyota Safety Sense
UK AURIS_HB_EE (OM12K97E)
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. 1 1 0
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Page 507 of 661

5077-3. Do-it-yourself maintenance
UK AURIS_HB_EE (OM12K97E)
7
Maintenance and care
■Use a CR2016 (vehicles without a smart entry & start system) or CR2032
(vehicles with a smart entry & start system) lithium battery
●Batteries can be purchased at any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional, local electrical appliance
shops or camera stores.
●Replace only with the same or equivalent type recommended by the manu-
facturer.
●Dispose of used batteries according to local laws.
■If the key battery is depleted
The following symptoms may occur:
●The smart entry & start system (if equipped), push button start (if equipped)
and wireless remote control will not function properly.
●The operational range will be reduced.
WARNING
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.
■Certification for the lithium battery
CAUTION:
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUC-
TIONS
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other component inside the remote control.
●Do not bend either of the battery terminals.
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Page 555 of 661

5558-2. Steps to take in an emergency
UK AURIS_HB_EE (OM12K97E)
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 the 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 authorized 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 Windshield.” 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
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