tow bar TOYOTA SIENNA HYBRID 2021 Owners Manual (in English)

2724-5. Using the driving support systems
the entrance of a curve
• 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

2764-5. Using the driving support systems
WARNING
●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 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 grille 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.
●When the follow-up cruising dis-
play is displayed ( P.281) and
the preceding vehicle changes
lanes. (Your veh icle may follow
the preceding vehicle and also
change lanes.)
●When the follow-up cruising dis-
play is displayed ( P.281) 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.281) and
the preceding vehicle departs
from its lane. (Your vehicle may
follow the preceding vehicle and
depart from the lane.)
●When the follow-up cruising dis-
play is displayed ( P.281) 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.

3274-5. Using the driving support systems
4
Driving
tion of your vehicle
■Situations in which the Parking
Support Brake function (static
objects) may not operate
When the shift lever is in N
■Intuitive parking assist buzzer
Regardless of whether the intuitive
parking assist syste m is enabled or
not ( P.310), if the Parking Support
Brake function (static objects) is
enabled ( P.320), the front or rear
sensors detect an object and brake
control and hybrid system output
restriction control are performed, the
intuitive parking assist buzzer will
sound to notify the driver of the
approximate distanc e to the object.
■Situations in which the Parking
Support Brake function (static
objects) may operate 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 there is a structure on the roadside (such as when driving in
a narrow tunnel , on a narrow
bridge or on a narrow road)
• 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 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
• When loaded on ships or trucks
• Moving type automatic car wash
• Lift type parking area or multi- story parking lot
• Underground parking area
• Structures on the ground (speed
bumps, cat’s eyes, etc.)
• Differences in height
• When moving straight ahead or
turning right
• Snow-melting pipes
• Devices for detecting vehicles,
such as traffic lig hts, devices for
detecting traffic congestion, or
devices for detecting empty
spaces in parking areas
• Railroad tracks
• H-shaped steel
• When there are vehicles on both sides, or there is a vehicle that
resembles this vehicle
●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 sonic wave sources
• When vehicle horns, vehicle detectors, motorcycle engines, air
brakes of large vehicles, the clear-