tow bar TOYOTA HIGHLANDER 2022 Owners Manual
Page 243 of 568
2434-5. Using the driving support systems
4
Driving
(road sign, billboard, etc.)
• When approaching an electric toll  gate barrier, parking area barrier, 
or other barrier that opens and 
closes
• When using an automatic car  wash
• When driving through or under 
objects that may contact your 
vehicle, such as thick grass, tree 
branches, or a banner
• When driving through steam or  smoke
• When driving near an object that  reflects radio waves, such as a 
large truck or guardrail
• When driving near a TV tower,  broadcasting station, electric 
power plant, radar equipped vehi-
cles, etc., or other location where 
strong radio waves or electrical 
noise may be present
• When there are many things  which can reflect  the radio waves 
of the radar in the vicinity (tunnels, 
truss bridges, gravel roads, snow 
covered road that have tracks, 
etc.)
• While making a right/left turn,  when an oncoming vehicle or a 
crossing pedestrian has already 
exited the path of your vehicle
• While making a right/left turn,  closely in front of an oncoming 
vehicle or a crossing pedestrian. • While making a 
right/left turn, 
when an oncoming vehicle or a 
crossing pedestrian stops before 
entering the path  of your vehicle
• While making a  right/left turn, 
when an oncoming vehicle turns 
right/left in fron t of your vehicle
• While steering into the direction of  oncoming traffic
■Situations in which the system 
may not operate properly
●In some situations such as the fol-
lowing, an object may not be 
detected by the radar sensor and 
front camera, pre venting the sys-
tem from opera ting properly:
• When a detectable object is 
approaching your vehicle
• When your vehicle or a detectable  object is wobbling
• If a detectable object makes an  abrupt maneuver (such as sudden 
swerving, acceleration or deceler-
ation)
• When your vehicle approaches a  detectable object rapidly
• When a detectable  object is not 
directly in front of your vehicle
• When a detectable  object is near 
a wall, fence, gua rdrail, manhole 
cover, vehicle, steel plate on the 
road, etc.
• When a detectable object is under  a structure 
Page 247 of 568
2474-5. Using the driving support systems
4
Driving
WARNING
■Before using LTA system
●Do not rely solely upon the LTA 
system. The LTA system does 
not automatically drive the vehi-
cle or reduce 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 paying careful atten-
tion to the surrounding condi-
tions and operating the steering 
wheel to correct the path of the 
vehicle. Also, the driver must 
take adequate breaks when 
fatigued, such as from driving 
for a long period of time.
●Failure to perform appropriate 
driving operations and pay care-
ful attention may lead to an 
accident, resulting in death or 
serious injury.
■Situations unsuitable for LTA 
system
In the following situations, use the 
LTA switch to turn the system off. 
Failure to do so may lead to an 
accident, resulting in death or 
serious injury.
●Vehicle is driven on a road sur-
face which is slippery due to 
rainy weather, fallen snow, 
freezing, etc.
●Vehicle is driven on a snow-cov-
ered road.
●White (yellow) lines are difficult 
to see due to rain, snow, fog, 
dust, etc.
●Vehicle is driven in a temporary 
lane or restricted lane due to 
construction work.
●Vehicle is driven in a construc-
tion zone.
●A spare tire, tire chains, etc. are 
equipped.
●When the tires have been 
excessively worn, or when the 
tire inflation p ressure is low.
●When your vehicle is towing a 
trailer or during emergency tow-
ing.
■Preventing LTA system mal-
functions and operations per-
formed by mistake
●Do not modify the headlights or 
place stickers, etc. on the sur-
face of the lights.
●Do not modify the suspension 
etc. If the suspension etc. needs 
to be replaced, contact your 
Toyota dealer.
●Do not install or place anything 
on the hood or grille. Also, do 
not install a gr ille guard (bull 
bars, kangaroo bar, etc.).
●If your windshield needs 
repairs, contact your Toyota 
dealer.
■Conditions in which functions 
may not operate properly
In the following  situations, the 
functions may not operate prop-
erly and the vehicle may depart 
from its lane. Drive safely by 
always paying careful attention to 
your surroundings and operate 
the steering wheel to correct the 
path of the vehicle without relying 
solely on the functions. 
Page 288 of 568
2884-5. Using the driving support systems
●On an extremely bumpy road, on 
an incline, on gravel, or on grass.
●When vehicle horns, vehicle 
detectors, motorcycle engines, air 
brakes of large vehicles, the clear-
ance sonar of other vehicles or 
other devices which produce ultra-
sonic waves are near the vehicle.
●A sensor is coated with a sheet of 
spray or heavy rain.
●If objects draw too close to the 
sensor.
●When a pedestrian is wearing 
clothing that does not reflect ultra-
sonic waves (ex. skirts with gath-
ers or frills).
●If objects draw too close to the 
sensor.
●When a pedestrian is wearing 
clothing that does not reflect ultra-
sonic waves (ex. skirts with gath-
ers or frills).
●When objects that are not perpen-
dicular to the gr ound, not perpen-
dicular to the v ehicle traveling 
direction, uneven, or waving are in 
the detection range.
●Strong wind is blowing.
●When driving in inclement weather 
such as fog, snow or a sandstorm.
●When an object that cannot be 
detected is betw een the vehicle 
and a detected object.
●If an object such as a vehicle, 
motorcycle, bicycle or pedestrian 
cuts in front of the  vehicle or runs 
out from the side  of the vehicle.
●If the orientation of a sensor has 
been changed due t o a collision or 
other impact.
●When equipment that may 
obstruct a sensor is installed, such 
as a towing eyelet, bumper pro-
tector (an additional trim strip, 
etc.), bicycle carrier, or snow plow.
●If the front of the v ehicle is raised 
or lowered due to the carried load.
●If the vehicle cannot be driven in a 
stable manner, such as when the 
vehicle has been in an accident or 
is malfunctioning.
●When a tire chains, compact 
spare tire or an emergency tire 
puncture repair kit is used.
■Situations in which the system 
may operate even if there is no 
possibility of a collision
In some situations, such as the fol-
lowing, the system may operate 
even though there is no possibility of 
a collision.
●When driving on a narrow road.
●When driving towa rd a banner, 
flag, low-hanging branch or boom 
barrier (such as those used at rail-
road crossings, toll gates and 
parking lots).
●When there is a ru t or hole in the 
surface of the road.
●When driving on a metal cover 
(grating), such as those used for 
drainage ditches.
●When driving up or down a steep 
slope.
●If a sensor is hit by a large amount 
of water, such as when driving on 
a flooded road.
●There is dirt, snow, water drops or 
ice on a sensor. (Cleaning the 
sensors will resolve this problem.)