Page 254 of 572

2544-5. Using the driving support systems
HIGHLANDER HV_U• When there are patterns or paint 
in front of your vehicle that may be 
mistaken for a detectable object
• When the front of your vehicle is  hit by water, snow, dust, etc.
• When overtaking a detectable 
object that is ch anging lanes or 
making a right/left turn
• When passing a detectable object  in an oncoming lane that is 
stopped to make a right/left turn
• When a detectable object  approaches very close and then 
stops before entering the path of 
your vehicle
• If the front of your vehicle is raised 
or lowered, such as when on an 
uneven or undulating road surface
• When driving on a road sur-
rounded by a structure, such as in 
a tunnel or on an iron bridge
• When there is a metal object 
(manhole cover, steel plate, etc.), 
steps, or a protrusion in front of 
your vehicle
• When passing under an object  (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, or other location 
where strong radio waves or elec-
trical noise may be present
■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  
     
        
        Page 258 of 572

2584-5. Using the driving support systems
HIGHLANDER HV_U
WA R N I N G
●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 pressure is low.
●When tires of a size other than 
specified are installed.
●Vehicle is driven in traffic lanes 
other than that highways and 
freeways.
●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 gr ille. 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 s ituations, 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.
●When the follow- up cruising dis-
play is displayed (P.262) and 
the preceding vehicle changes 
lanes. (Your vehicle may follow 
the preceding vehicle and also 
change lanes.)
●When the follow- up cruising dis-
play is displayed (
P.262) and 
the preceding vehicle is sway-
ing. (Your vehicle may sway 
accordingly and depart from the 
lane.)
●When the follow- up cruising dis-
play is displayed (P.262) and 
the preceding vehicle departs 
from its lane. (Y our vehicle may 
follow the preceding vehicle and 
depart from the lane.)
●When the follow- up cruising dis-
play is displayed (
P.262) and 
the preceding vehicle is being 
driven extremely  close to the 
left/right lane line. (Your vehicle 
may follow the preceding vehi-
cle and depart from the lane.)
●Vehicle is being driven around a 
sharp curve. 
     
        
        Page 310 of 572

3104-5. Using the driving support systems
HIGHLANDER HV_U
■Situation in which the Parking 
Support Brake function (static 
objects) may not operate
When driving with th e shift lever in 
N.
■Intuitive parking assist buzzer
Regardless of whether the intuitive 
parking assist syste m is enabled or 
not ( P.287), if the Parking Support 
Brake function (static objects) is 
enabled ( P.300), the fr ont or rear 
sensors detect an object and brake 
control is perform ed, the intuitive 
parking assist buzze r will sound to 
notify the driver of the approximate 
distance to the object.
■Situations in which the Parking 
Support Brake function (static 
objects) may op erate even if 
there is no possibility of a colli-
sion
In some situations, such as the fol-
lowing, the Parking Support Brake 
function (static objects) may operate 
even though there is no possibility of 
a collision.
●Vehicle surroundings
• When driving on a narrow road
• When driving on a gravel road or  in an area with tall grass
• When driving toward a banner,  flag, low-hanging branch or boom  barrier (such as those used at rail-
road crossings, toll gates and 
parking lots)
• When driving on a narrow path  surrounded by a structure, such 
as in a tunnel or on an iron bridge
• When parallel parking
• When there is a rut or hole in the  surface of the road
• When driving on a metal cover  (grating), such as those used for 
drainage ditches
• When driving on a steep slope
• If a sensor is hit by a large amount  of water, such as when driving on 
a flooded road
●Weather
• If a sensor is covered with ice,  snow, dirt, etc. (when cleared, the 
system will return to normal)
• If heavy rain or water strikes a  sensor
• When driving in inclement weather 
such as fog, snow or a sandstorm
• When strong winds are blowing
●Other ultrasonic wave sources
• When vehicle horns, vehicle  detectors, motorcycle engines, air 
brakes of large vehicles, the clear-
ance sonar of ot her vehicles or 
other devices which produce ultra-
sonic waves are near the vehicle
• If a sticker or an electronic compo- nent, such as a backlit license 
plate (especially fluorescent type), 
fog lights, fender pole or wireless 
antenna is installed near a sensor
●Changes in the v ehicle posture
• If the vehicle is significantly tilted
• If the front of the v ehicle is raised 
or lowered due to the carried load
• If the orientation of a sensor has 
been changed due to  a collision or 
other impact
• If a sensor has been painted or  covered with a sticker, etc.
■Situations in wh ich the Parking 
Support Brake function (static 
objects) may not operate prop-
erly
In some situations, such as the fol-
lowing, this functi on may not oper-