Toyota Avalon (2022 year). Manual in english — page 8
232
4-5. Using the driving support systems
WARNING
■ When to disable the pre-collision system
In the following situations, disable the system, as it may not operate prop-
erly, possibly leading to an accident resulting in death or serious injury:
● When the vehicle is being towed
● When your vehicle is towing another vehicle
● When transporting the vehicle via truck, boat, train or similar means of
transportation
● When the vehicle is raised on a lift with the engine running and the tires
are allowed to rotate freely
● When inspecting the vehicle using a drum tester such as a chassis dyna-
mometer or speedometer tester, or when using an on vehicle wheel bal-
ancer
● When a strong impact is applied to the front bumper or front grille, due to
an accident or other reasons
● If the vehicle cannot be driven in a stable manner, such as when the vehi-
cle has been in an accident or is malfunctioning
● When the vehicle is driven in a sporty manner or off-road
● When the tires are not properly inflated
● When the tires are very worn
● When tires of a size other than specified are installed
● When tire chains are installed
● When a compact spare tire or an emergency tire puncture repair kit is used
● If equipment (snow plow, etc.) that may obstruct the radar sensor or front
camera is temporarily installed to the vehicle
4-5. Using the driving support systems
233
Changing settings of the pre-collision system
■ Enabling/disabling the pre-collision system
The pre-collision system can be enabled/disabled on
(P. 101)
of the multi-information display.
The system is automatically enabled each time the engine switch is
turned to IGNITION ON mode.
If the system is disabled, the
PCS warning light will turn on
and a message will be dis-
played on the multi-information
display.
4
■ Changing the pre-collision warning timing
The pre-collision warning timing can be changed on
(P. 101)
of the multi-information display.
The warning timing setting is retained when the engine switch is turned
off. However, if the pre-collision system is disabled and re-enabled, the
operation timing will return to the default setting (middle).
If the pre-collision warning timing is changed, emergency steering
assist timing will also be changed accordingly.
If late is selected, emergency steering assist would not operate in
case of an emergency.
1
Early
2
Middle
This is the default setting.
3
Late
234
4-5. Using the driving support systems
■ Operational conditions for each pre-collision function
The pre-collision system is enabled and the system determines that the pos-
sibility of a frontal collision with a detected object is high.
The system may not operate in the following situations:
• If a battery terminal has been disconnected and reconnected and then
the vehicle has not been driven for a certain amount of time
• If the shift lever is in R
• When the VSC OFF indicator is illuminated (only the pre-collision warning
function will be operational)
The operation speeds and operation cancellation for each function is
listed below.
● Pre-collision warning
Relative speed
Detectable objects
Vehicle speed
between your vehicle
and object
Preceding
and
Approx. 7 to 110 mph (10 to
Approx. 7 to 110 mph
stopped vehicles
180 km/h)
(10 to 180 km/h)
Oncoming vehi-
Approx. 7 to 110 mph (10 to
Approx.
13 to
110
cles
180 km/h)
mph (20 to 180 km/h)
Bicyclists
and
Approx. 7 to 50 mph (10 to
Approx. 7 to 50 mph
pedestrians
80 km/h)
(10 to 80 km/h)
While the pre-collision warning function is operating, if the steering wheel is
operated heavily or suddenly, the pre-collision warning may be cancelled.
● Pre-collision brake assist
Relative speed
Detectable objects
Vehicle speed
between your vehicle
and object
Preceding
and
Approx. 20 to 110 mph (30
Approx.
20 to
110
stopped vehicles
to 180 km/h)
mph (30 to 180 km/h)
Bicyclists
and
Approx. 20 to 50 mph (30 to
Approx. 20 to 50 mph
pedestrians
80 km/h)
(30 to 80 km/h)
4-5. Using the driving support systems
235
● Pre-collision braking
Relative speed
Detectable objects
Vehicle speed
between your vehicle
and object
Preceding
and
Approx. 7 to 110 mph (10 to
Approx. 7 to 110 mph
stopped vehicles
180 km/h)
(10 to 180 km/h)
Oncoming vehi-
Approx. 7 to 110 mph (10 to
Approx.
13 to
110
cles
180 km/h)
mph (20 to 180 km/h)
Bicyclists
and
Approx. 7 to 50 mph (10 to
Approx. 7 to 50 mph
pedestrians
80 km/h)
(10 to 80 km/h)
If either of the following occur while the pre-collision braking function is
operating, it will be canceled:
• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.
● Emergency steering assist
4
When the turn signal lights are flashing, emergency steering assist will not
operate in case of an emergency.
Relative speed
Detectable objects
Vehicle speed
between your vehicle
and object
Preceding
and
stopped vehicles,
Approx. 25 to 50 mph (40 to
Approx. 25 to 50 mph
bicyclists
and
80 km/h)
(40 to 80 km/h)
pedestrians
If any of the following occur while the emergency steering assist function is
operating, it will be canceled:
• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.
• The brake pedal is depressed.
236
4-5. Using the driving support systems
● Intersection right/left turn assistance (pre-collision warning)
When the turn signal lights are not flashing, support for turning left or right
at an intersection which targets oncoming vehicles does not work.
Relative speed
Detectable
Oncoming vehi-
Vehicle speed
between your
objects
cle speed
vehicle and object
Approx. 7 to
15
Approx. 20 to 35
Approx. 25 to 50
Oncoming
mph
(10 to
25
mph
(30 to
55
mph
(40 to
80
vehicles
km/h)
km/h)
km/h)
Approx. 7 to
15
Approx. 7 to
15
Pedestrians
mph
(10 to
25
mph
(10 to
25
km/h)
km/h)
● Intersection right/left turn assistance (pre-collision braking)
When the turn signal lights are not flashing, support for turning left or right
at an intersection which targets oncoming vehicles does not work.
Relative speed
Detectable
Oncoming vehi-
Vehicle speed
between your
objects
cle speed
vehicle and object
Approx. 10 to 15
Approx. 20 to 28
Approx. 28 to 43
Oncoming
mph
(15 to
25
mph
(30 to
45
mph
(45 to
70
vehicles
km/h)
km/h)
km/h)
Approx. 7 to
15
Approx. 7 to
15
Pedestrians
mph
(10 to
25
mph
(10 to
25
km/h)
km/h)
■ Object detection function
The system detects objects based on
their size, profile, motion, etc. However,
an object may not be detected depending
on the surrounding brightness and the
motion, posture, and angle of the
detected object, preventing the system
from operating properly. (P. 239)
The illustration shows an image of detect-
able objects.
4-5. Using the driving support systems
237
■ Conditions under which the system may operate even if there is no pos-
sibility of a collision
● In some situations such as the following, the system may determine that
there is a possibility of a frontal collision and operate.
• When passing a detectable object, etc.
• When changing lanes while overtaking a detectable object, etc.
• When approaching a detectable
object in an adjacent lane or on the
roadside, such as when changing the
course of travel or driving on a wind-
ing road
• When rapidly closing on a detectable object, etc.
• When approaching objects on the roadside, such as detectable objects,
guardrails, utility poles, trees, or walls
4
• When there is a detectable object or
other object by the roadside at the
entrance of a curve
• When there are patterns or paint in front of your vehicle that may be mis-
taken for a detectable object
• When the front of your vehicle is hit by water, snow, dust, etc.
• When overtaking a detectable object
that is changing 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
238
4-5. Using the driving support systems
• 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 surrounded 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,
radar equipped vehicles, 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
4-5. Using the driving support systems
239
• While making a right/left turn, when
an oncoming vehicle turns right/left in
front 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 following, an object may not be detected by
the radar sensor and front camera, preventing the system from operating
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 swerv-
ing, acceleration or deceleration)
• When your vehicle approaches a detectable object rapidly
4
• When a detectable object is not
directly in front of your vehicle
• When a detectable object is near a wall, fence, guardrail, manhole cover,
vehicle, steel plate on the road, etc.
• When a detectable object is under a structure
• When part of a detectable object is hidden by an object, such as large
baggage, an umbrella, or guardrail
• 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.)
• When there is an effect on the radio waves to the radar that is installed on
another vehicle
• When multiple detectable objects are close together
• If the sun or other light is shining directly on a detectable object
• When a detectable object is a shade of white and looks extremely bright
• When a detectable object appears to be nearly the same color or bright-
ness as its surroundings
• If a detectable object cuts or suddenly emerges in front of your vehicle
• When the front of your vehicle is hit by water, snow, dust, etc.
• When a very bright light ahead, such as the sun or the headlights of
oncoming traffic, shines directly into the front camera
• When approaching the side or front of a vehicle ahead
• If a vehicle ahead is a motorcycle
240
4-5. Using the driving support systems
• If a vehicle ahead is narrow, such as a personal mobility vehicle
• If a preceding vehicle has a small rear end, such as an unloaded truck
• If a preceding vehicle has a low rear
end, such as a low bed trailer
• If a vehicle ahead has extremely high
ground clearance
•
If a vehicle ahead is carrying a load which protrudes past its rear bumper
•
If a vehicle ahead is irregularly shaped, such as a tractor or side car
•
If a vehicle ahead is a child sized bicycle, a bicycle that is carrying a large
load, a bicycle ridden by more than one person, or a uniquely shaped
bicycle (bicycle with a child seat, tandem bicycle, etc.)
•
If a pedestrian/ or the riding height of a bicyclist ahead is shorter than
approximately 3.2 ft. (1 m) or taller than approximately 6.5 ft. (2 m)
•
If a pedestrian/bicyclist is wearing oversized clothing (a rain coat, long
skirt, etc.), making their silhouette obscure
•
If a pedestrian is bending forward or squatting or bicyclist is bending for-
ward
•
If a pedestrian/bicyclist is moving fast
•
If a pedestrian is pushing a stroller, wheelchair, bicycle or other vehicle
•
When driving in inclement weather such as heavy rain, fog, snow or a
sandstorm
•
When driving through steam or smoke
•
When the surrounding area is dim, such as at dawn or dusk, or while at
night or in a tunnel, making a detectable object appear to be nearly the
same color as its surroundings
•
When driving in a place where the surrounding brightness changes sud-
denly, such as at the entrance or exit of a tunnel
•
After the engine has started the vehicle has not been driven for a certain
amount of time
•
While making a left/right turn and for a few seconds after making a left/
right turn
•
While driving on a curve and for a few seconds after driving on a curve
•
If your vehicle is skidding
4-5. Using the driving support systems
241
• If the front of the vehicle is raised or
lowered
• If the wheels are misaligned
• If a wiper blade is blocking the front camera
• The vehicle is being driven at extremely high speeds
• When driving on a hill
• If the radar sensor or front camera is misaligned
• When driving in a traffic lane separated by more than one lane where
oncoming vehicles are driving while making a right/left turn
• When largely out of place with the
opposite facing targeted oncoming
vehicle during a right/left turn
4
• While making a right/left turn, when a
pedestrian approaches from behind
or side of your vehicle
● In addition to the above, in some situations, such as the following, the emer-
gency steering assist may not operate.
• When the white (yellow) lane lines are difficult to see, such as when they
are faint, diverging/merging, or a shadow is cast upon them
• When the lane is wider or narrower than normal
• When there is a light and dark pattern on the road surface, such as due to
road repairs
• When the target is too close
• When there is insufficient safe or unobstructed space for the vehicle to be
steered into
• If oncoming vehicle is present
• If VSC function is operating
242
4-5. Using the driving support systems
● In some situations such as the following, sufficient braking force or steering
force may not be obtained, preventing the system from performing properly:
• If the braking functions cannot operate to their full extent, such as when
the brake parts are extremely cold, extremely hot, or wet
• If the vehicle is not properly maintained (brakes or tires are excessively
worn, improper tire inflation pressure, etc.)
• When the vehicle is being driven on a gravel road or other slippery sur-
face
• When the road surface has deep wheel tracks
• When driving on a hill road
• When driving on a road that has inclines to the left or right
■ If VSC is disabled
● If VSC is disabled (P. 330), the pre-collision brake assist and pre-collision
braking functions are also disabled.
● The PCS warning light will turn on and “VSC Turned Off Pre-Collision Brake
System Unavailable” will be displayed on the multi-information display.
4-5. Using the driving support systems
243
LTA (Lane Tracing Assist)
Summary of functions
While driving on a road with clear white (yellow) lane lines, the LTA
system warns the driver if the vehicle may deviate from the current
lane or course*, and also can slightly operate the steering wheel to
help avoid deviation from the lane or course*. Also, while the dynamic
radar cruise control with full-speed range is operating, this system will
operate the steering wheel to maintain the vehicle’s lane position.
The LTA system recognizes white
(yellow) lane lines or a course*
using the front camera. Addition-
ally, it detects preceding vehicles
using the front camera and radar.
4
*: Boundary between asphalt and the side of the road, such as grass, soil, or
a curb
WARNING
■ Before using LTA system
● Do not rely solely upon the LTA system. The LTA system does not auto-
matically drive the vehicle 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 attention to the surround-
ing conditions 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 careful attention
may lead to an accident, resulting in death or serious injury.
244
4-5. Using the driving support systems
WARNING
■ 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 surface which is slippery due to rainy weather,
fallen snow, freezing, etc.
● Vehicle is driven on a snow-covered 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 construction zone.
● A spare tire, tire chains, etc. are equipped.
● When the tires have been excessively worn, or when the tire inflation pres-
sure is low.
● During emergency towing
■ Preventing LTA 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 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.
4-5. Using the driving support systems
245
WARNING
■Conditions in which functions may not operate properly
In the following situations, the functions may not operate properly 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 display is
displayed (P. 253) and the preceding
vehicle changes lanes.
(Your vehicle
may follow the preceding vehicle and
also change lanes.)
● When the follow-up cruising display is displayed (P. 253) and the pre-
ceding vehicle is swaying. (Your vehicle may sway accordingly and depart
4
from the lane.)
● When the follow-up cruising display is displayed (P. 253) and the pre-
ceding vehicle departs from its lane. (Your vehicle may follow the preced-
ing vehicle and depart from the lane.)
● When the follow-up cruising display is displayed (P. 253) and the pre-
ceding vehicle is being driven extremely close to the left/right lane line.
(Your vehicle may follow the preceding vehicle and depart from the lane.)
● Vehicle is being driven around a sharp curve.
● Objects or patterns that could be mis-
taken for white (yellow) lines are pres-
ent on the side of the road (guardrails,
reflective poles, etc.).
246
4-5. Using the driving support systems
WARNING
● Vehicle is driven where the road
diverges, merges, etc.
● Repair marks of asphalt, white (yellow)
lines, etc. are present due to road
repair.
● 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, “Botts’ dots”, “Raised pavement
marker” 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.
● If the edge of the road is not clear or straight.
● 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.
4-5. Using the driving support systems
247
WARNING
● Light from the headlights of an oncoming vehicle, the sun, etc. enters the
camera.
● 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 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).
● When driving in a tunnel or at night with the headlights off or when a head-
light is dim due to its lens being dirty or it being misaligned.
● The vehicle is struck by a crosswind.
4
● The vehicle is affected by wind from a vehicle driven in a nearby lane.
● The vehicle has just changed lanes or crossed an intersection.
● Tires which differ by structure, manufacturer, brand or tread pattern are
used.
● When tires of a size other than specified are installed.
● Snow tires, etc. are equipped.
● The vehicle is being driven at extremely high speeds.
248
4-5. Using the driving support systems
Functions included in LTA system
◆ Lane departure alert function
When the system determines
that the vehicle might depart
from its lane or course*, a
warning is displayed on the
multi-information display, and a
warning buzzer will sound to
alert the driver.
When the warning buzzer
sounds, check the area around
your vehicle and carefully oper-
ate the steering wheel to move
the vehicle back to the center of
the lane.
Vehicle with BSM: When the
system determines that the
vehicle might depart from its
lane and that the possibility of a
collision with an overtaking vehi-
cle in the adjacent lane is high,
the lane departure alert will
operate even if the turn signals
are operating.
*: Boundary between asphalt and the side of the road, such as grass, soil,
or a curb
4-5. Using the driving support systems
249
◆ Steering assist function
When the system determines
that the vehicle might depart
from its lane or course*, the
system provides assistance as
necessary by operating the
steering
wheel in small
amounts for a short period of
time to keep the vehicle in its
lane.
Vehicle with BSM: When the
system determines that the
vehicle might depart from its
lane and that the possibility of a
collision with an overtaking vehi-
cle in the adjacent lane is high,
4
the steering assist function will
operate even if the turn signals
are operating.
*: Boundary between asphalt and the side of
the road, such as
grass, soil,
or a curb
250
4-5. Using the driving support systems
◆ Vehicle sway warning function
When the vehicle is swaying
within a lane, the warning
buzzer will sound and a mes-
sage will be displayed on the
multi-information display to alert
the driver.
◆ Lane centering function
This function is linked with
dynamic radar cruise control
with full-speed range and pro-
vides the required assistance
by operating the steering wheel
to keep the vehicle in its current
lane.
When dynamic radar cruise con-
trol with full-speed range is not
operating, the lane centering
function does not operate.
In situations where the white
(yellow) lane lines are difficult to
see or are not visible, such as
when in a traffic jam, this func-
tion will operate to help follow a
preceding vehicle by monitoring
the position of the preceding
vehicle.
4-5. Using the driving support systems
251
Turning LTA system on
Press the LTA switch to turn the
LTA system on.
The LTA indicator illuminates and a
message is displayed on the multi-
information display.
Press the LTA switch again to turn
the LTA system off.
When the LTA system is turned
on
or off, operation of the LTA system
continues in the same condition
the next time the engine is started.
4
252
4-5. Using the driving support systems
Indications on multi-information display
1
LTA indicator
The illumination condition of the
indicator informs the driver of
the system operation status.
Illuminated in white:
LTA system is operating.
Illuminated in green:
Steering wheel assistance of the
steering assist function or lane
centering function is operating.
Flashing in orange:
Lane departure alert function is
operating.
Operation display of steering wheel operation support
2
Displayed when the multi-information display is switched to the
driving assist system information screen.
Indicates that steering wheel assistance of the steering assist func-
tion or lane centering function is operating.
Both outer sides of the lane are displayed: Indicates that steering
wheel assist of the lane centering function is operating.
One outer side of the lane is displayed: Indicates that steering
wheel assist of the steering assist function is operating.
Both outer sides of the lane are flashing: Alerts the driver that their
input is necessary to stay in the center of the lane (lane centering
function).
4-5. Using the driving support systems
253
3
Lane departure alert function display
Displayed when the multi-information display is switched to the
driving assist system information screen.
Inside of displayed lines is
Inside of displayed lines is
white
black
Indicates that the system is recog-
Indicates that the system is not
4
nizing white
(yellow) lines or a
able to recognize white (yellow)
course*. When the vehicle
lines or a course* or is temporar-
departs from its lane, the white
ily canceled.
line displayed on the side the
vehicle departs from flashes
orange.
*: Boundary between asphalt and the side of the road, such as grass, soil, or
a curb
Follow-up cruising display
4
Displayed when the multi-information display is switched to the
driving assist system information screen.
Indicates that steering assist of the lane centering function is operating
by monitoring the position of a preceding vehicle.
When the follow-up cruising display is displayed, if the preceding vehi-
cle moves, your vehicle may move in the same way. Always pay careful
attention to your surroundings and operate the steering wheel as neces-
sary to correct the path of the vehicle and ensure safety.
254
4-5. Using the driving support systems
■ Operation conditions of each function
● Lane departure alert function
This function operates when all of the following conditions are met.
• LTA is turned on.
• Vehicle speed is approximately 32 mph (50 km/h) or more.*1
• System recognizes white (yellow) lane lines or a course*2. (When a white
[yellow] line or course*2 is recognized on only one side, the system will
operate only for the recognized side.)
• Width of traffic lane is approximately 9.8 ft. (3 m) or more.
• Turn signal lever is not operated.
(Vehicle with BSM: Except when
another vehicle is in the lane on the side where the turn signal was oper-
ated)
• Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. (P. 257)
*1: The function operates even if the vehicle speed is less than approxi-
mately 32 mph (50 km/h) when the lane centering function is operating.
*2: Boundary between asphalt and the side of the road, such as grass, soil,
or a curb
● Steering assist function
This function operates when all of the following conditions are met in addi-
tion to the operation conditions for the lane departure alert function.
• Vehicle is not accelerated or decelerated by a fixed amount or more.
• Steering wheel is not operated with a steering force level suitable for
changing lanes.
• ABS, VSC, TRAC and PCS are not operating.
• TRAC or VSC is not turned off.
● Vehicle sway warning function
This function operates when all of the following conditions are met.
• Setting for “Sway Warning” in
of the multi-information display is set to
“On”. (P. 93)
• Vehicle speed is approximately 32 mph (50 km/h) or more.
• Width of traffic lane is approximately 9.8 ft. (3 m) or more.
• No system malfunctions are detected. (P. 257)
● Lane centering function
This function operates when all of the following conditions are met.
• LTA is turned on.
• Setting for “Lane Center” in
of the multi-information display is set to
“ON”. (P. 93)
• This function recognizes white (yellow) lane lines or the position of a pre-
ceding vehicle (except when the preceding vehicle is small, such as a
motorcycle).
4-5. Using the driving support systems
255
• The dynamic radar cruise control with full-speed range is operating in
vehicle-to-vehicle distance control mode.
• Width of traffic lane is approximately 10 to 13 ft. (3 to 4 m).
• Turn signal lever is not operated.
• Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. (P. 257)
• Vehicle does not accelerate or decelerate by a fixed amount or more.
• Steering wheel is not operated with a steering force level suitable for
changing lanes.
• ABS, VSC, TRAC and PCS are not operating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not displayed. (P. 256)
• The vehicle is being driven in the center of a lane.
• Steering assist function is not operating.
■ Temporary cancelation of functions
● When operation conditions are no longer met, a function may be temporarily
canceled. However, when the operation conditions are met again, operation
of the function is automatically restored. (P. 254)
4
● If the operation conditions (P. 254) are no longer met while the lane cen-
tering function is operating, the buzzer may sound to indicate that the func-
tion has been temporarily canceled.
■ Steering assist function/lane centering function
● Depending on the vehicle speed, lane departure situation, road conditions,
etc., the driver may not feel the function is operating or the function may not
operate at all.
● The steering control of the function is overridden by the driver’s steering
wheel operation.
● Do not attempt to test the operation of the steering assist function.
■ Lane departure alert function
● The warning buzzer may be difficult to hear due to external noise, audio
playback, etc.
● If the edge of the course* is not clear or straight, the lane departure alert
function may not operate.
● Vehicle with BSM: It may not be possible for the system to determine if there
is a danger of a collision with a vehicle in an adjacent lane.
● Do not attempt to test the operation of the lane departure alert function.
*: Boundary between asphalt and the side of the road, such as grass, soil, or
a curb
256
4-5. Using the driving support systems
■ Hands off steering wheel warning
In the following situations, a warning mes-
sage urging the driver to hold the steering
wheel and the symbol shown in the illus-
tration are displayed on the multi-informa-
tion display to warn the driver. The
warning stops when the system deter-
mines that the driver holds the steering
wheel. Always keep your hands on the
steering wheel when using this system,
regardless of warnings.
● When the system determines the driver is not holding the steering wheel
while the lane centering function is operating.
If the driver continues to keep their hands off of the steering wheel, the
buzzer sounds, the driver is warned and the function is temporarily canceled.
This warning also operates in the same way when the driver continuously
operates the steering wheel only a small amount.
● When the system determines that the vehicle may deviate from the lane
while driving around a curve while the lane centering function is operating.
Depending on the vehicle condition and road conditions, the warning may not
operate. Also, if the system determines that the vehicle is driving around a
curve, warnings will occur earlier than during straight-lane driving.
● When the system determines that the driver is driving without holding the
steering wheel while the steering wheel assist of the steering assist function
is operating.
If the driver continues to keep their hands off of the steering wheel and the
steering wheel assist is operating, the buzzer sounds and the driver is
warned. Each time the buzzer sounds, the continuing time of the buzzer
becomes longer.
■ Vehicle sway warning function
When the system determines that the
vehicle is swaying while the vehicle sway
warning function is operating, a buzzer
sounds and a warning message urging
the driver to rest and the symbol shown in
the illustration are simultaneously dis-
played on the multi-information display.
Depending on the vehicle and road conditions, the warning may not operate.
4-5. Using the driving support systems
257
■ Warning message
If the following warning message is displayed on the multi-information display
and the LTA indicator illuminates in orange, follow the appropriate trouble-
shooting procedure. Also, if a different warning message is displayed, follow
the instructions displayed on the screen.
● “LTA Malfunction Visit Your Dealer”
The system may not be operating properly. Have the vehicle inspected by
your Toyota dealer.
● “LTA Unavailable”
The system is temporarily canceled due to a malfunction in a sensor other
than the front camera. Turn the LTA system off, wait for a little while, and then
turn the LTA system back on.
● “LTA Unavailable at Current Speed”
The function cannot be used as the vehicle speed exceeds the LTA operation
range. Drive slower.
■ Customization
Function settings can be changed. (P. 100)
4
258
4-5. Using the driving support systems
RSA (Road Sign Assist)
Summary of function
The RSA system recognizes spe-
cific road signs using the front
camera and/or navigation system
(when speed limit information is
available) to provide information
to the driver via the display.
Front camera
If the system judges that the vehicle is being driven over the speed
limit, performing prohibited actions, etc. according to the recognized
road signs, it notifies the driver through a visual notification and notifi-
cation buzzer.
WARNING
■Before using the RSA
Do not rely solely upon the RSA system. RSA is a system which supports
the driver by providing information, but it is not a replacement for a driver’s
own vision and awareness. Drive safely by always paying careful attention
to the traffic rules.
: If equipped
4-5. Using the driving support systems
259
Indication on the multi-information display
When the front camera recognizes a sign and/or information of a sign
is available from the navigation system, the sign will be displayed on
the multi-information display.
● When the driving assist system
information is selected, a maxi-
mum of 3 signs can be dis-
played. (P. 93)
● When a tab other than the driv-
ing assist system information is
4
selected, the following types of
road signs will be displayed.
(P. 93)
• Speed limit sign
• Do Not Enter sign
(when
notification is necessary)
If signs other than speed limit signs are recognized, they will be dis-
played in an overlapping stack under the current speed limit sign.
260
4-5. Using the driving support systems
Supported types of road signs
The following types of road signs, including electronic signs and blink-
ing signs, are recognized.
A non-official or a recently introduced traffic sign may not be recognized.
Type
Multi-information display
Speed limit
Do Not Enter
Stop
Yield
4-5. Using the driving support systems
261
Notification function
In the following situations, the RSA system will notify the driver.
● When the vehicle speed exceeds the speed notification threshold of
the speed limit sign displayed, the sign display will be emphasized
and a buzzer will sound.
● When the RSA system recognizes a do not enter sign and deter-
mines that your vehicle has entered a no-entry area, the displayed
sign will flash and a buzzer will sound.
Depending on the situation, a notification function may not operate
properly.
■Setting procedure
1
Press
/
of the meter control switches, select
2
Press
/
of the meter control switches, select
4
3
Press
of the meter control switch.
Each time
is pressed, the function changes on/off.
■Automatic turn-off of RSA sign display
In the following situations, a displayed speed limit sign and/or do not enter
sign will stop being displayed automatically:
● No sign has been recognized for a certain distance.
● The road changes due to a left or right turn, etc.
In the following situations, stop and yield signs will stop being displayed auto-
matically:
● The system determines that your vehicle has passed the sign.
● The road changes due to a left or right turn, etc.
262
4-5. Using the driving support systems
■ Conditions in which the function may not operate or detect correctly
In the following situations, RSA does not operate normally and may not rec-
ognize signs, display the incorrect sign, etc. However, this does not indicate a
malfunction.
● The front camera is misaligned due to a strong impact being applied to the
sensor, etc.
● Dirt, snow, stickers, etc. are on the windshield near the front camera.
● In inclement weather such as heavy rain, fog, snow or sand storms
● Light from an oncoming vehicle, the sun, etc. enters the front camera.
● The sign is dirty, faded, tilted or bent.
● The contrast of electronic sign is low.
● All or part of the sign is hidden by the leaves of a tree, a pole, etc.
● The sign is only visible to the front camera for a short amount of time.
● The driving scene (turning, lane change, etc.) is judged incorrectly.
● If a sign not appropriate for the currently traveled lane, but the sign exists
directly after a freeway branches, or in an adjacent lane just before merging.
● Stickers are attached to the rear of the preceding vehicle.
● A sign resembling a system compatible sign is recognized.
● Side road speed signs may be detected and displayed (if positioned in sight
of the front camera) while the vehicle is traveling on the main road.
● Roundabout exit road speed signs may be detected and displayed (if posi-
tioned in sight of the front camera) while traveling on a roundabout.
● The front of the vehicle is raised or lowered due to the carried load.
● The surrounding brightness is not sufficient or changes suddenly.
● When a sign intended for trucks, etc. is recognized.
● The navigation system map data is outdated.
●The navigation system is not operating.
● The speed information displayed on the meter and on the navigation system
may be different due to the navigation system using map data.
■ Speed limit sign display
If the engine switch was last turned off while a speed limit sign was displayed
on the multi-information display, the same sign displays again when the
engine switch is turned to ON.
■ If “RSA Malfunction Visit Your Dealer” is shown
The system may be malfunctioning. Have the vehicle inspected by your Toy-
ota dealer.
■ Customization
Some functions can be customized. (P. 100)
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