Summary of functions
When driving on highways and freeways with white (yellow) lines, this
function alerts the driver when the vehicle might depart from its lane
and provides assistance by operating the steering wheel to keep the
vehicle in its lane.
The LDA system recognizes visible
white (yellow) lines with the
camera sensor on the upper portion
of the windshield.
Functions included in LDA system
Lane departure alert function
When the system determines
that the vehicle might depart
from its lane, a warning is displayed
on the multi-information
display and the warning buzzer
sounds to alert the driver.
When the warning buzzer
sounds, check the surrounding
road situation and carefully
operate the steering wheel to
move the vehicle back to the
center of the lane.
Steering control function
When the system determines
that the vehicle might depart
from its lane, 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.
If the system detects that the
steering wheel has not been
operated for a fixed amount of
time or the steering wheel is not
being firmly gripped, a warning
is displayed on the multi-information
display and the function
is temporarily canceled.
Vehicle sway warning function
When the vehicle is swaying or
appears as if it may depart from
its lane multiple times, the
warning buzzer sounds and a
message is displayed on the
multi-information display to alert
the driver.
| WARNING ■Before using LDA system
Do not rely solely upon the LDA system. The LDA system does
not automatically
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 surrounding
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.
■To avoid operating LDA system by mistake
When not using the LDA system, use the LDA switch to turn
the system off. |
| WARNING ■Situations unsuitable for LDA
system
Do not use the LDA system in the following situations.
The system may not operate properly and lead to an accident,
resulting in
death or serious injury.
- A spare tire, tire chains, etc. are equipped.
- When the tires have been excessively worn, or when
the tire inflation pressure
is low.
- Tires which differ by structure, manufacturer, brand
or tread pattern are
used.
- Objects or patterns that could be mistaken for white
(yellow) lines are
present on the side of the road (guardrails, curbs,
reflective poles, etc.).
- Vehicle is driven on a snow-covered road.
- White (yellow) lines are difficult to see due to
rain, snow, fog, dust, etc.
- Asphalt repair marks, white (yellow) line marks,
etc. are present due to
road repair.
- Vehicle is driven in a temporary lane or restricted
lane due to construction
work.
- Vehicle is driven on a road surface which is
slippery due to rainy weather,
fallen snow, freezing, etc.
- Vehicle is driven in traffic lanes other than on
highways and freeways.
- Vehicle is driven in a construction zone.
■Preventing LDA 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.
|
Turning LDA system on
Press the LDA switch to turn the
LDA system on.
The LDA indicator illuminates and
a message is displayed on the
multi-information display.
Press the LDA switch again to turn
the LDA system off.
When the LDA system is turned on
or off, operation of the LDA system
continues in the same condition
the next time the engine is started.
Indications on multi-information display
The illustration used is intended as an example, and may differ from
the image that is actually displayed on the multi-information display.
- LDA indicator
The illumination condition of the
indicator informs the driver of
the system operation status.
Illuminated in white:
LDA system is operating.
Illuminated in green:
Steering wheel assistance of the
steering control function is operating.
Flashing in amber:
Lane departure alert function is
operating.
- Operation display of steering wheel operation support
Indicates that steering wheel assistance of the steering control
function is operating.
- Lane departure alert function display
Displayed when the multi-information display is switched to the
driving assist system information screen.
Inside of displayed white lines
is white
Indicates that the system is recognizing
white (yellow) lines. When
the vehicle departs from its lane,
the white line displayed on the
side the vehicle departs from
flashes yellow.
Inside of displayed white lines
is black
Indicates that the system is not
able to recognize white (yellow)
lines or is temporarily canceled.
■Operation conditions of each function
- Lane departure alert function
This function operates when all of the following conditions are
met.
- LDA is turned on.
- Vehicle speed is approximately 32 mph (50 km/h) or more.
- System recognizes white (yellow) lines.
- Width of traffic lane is approximately 9.8 ft. (3 m) or
more.
- Turn signal lever is not operated.
- Vehicle is driven on a straight road or around a gentle
curve with a radius
of more than approximately 492 ft. (150 m).
- No system malfunctions are detected.
- Steering control function
This function operates when all of the following conditions are
met in addition
to the operation conditions for the lane departure alert
function.
- Setting for "Steering Assist" in
 of the
multi-information display is set to
"On".
- Vehicle is not accelerated or decelerated by a certain
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.
- 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".
- 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.
■Temporary cancellation of functions
When the 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.
■Steering control 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.
■Lane departure alert function
The warning buzzer may be difficult to hear due to external
noise, audio playback,
etc.
■Hands off steering wheel warning When the system determines
that the
driver has removed their hands from the
steering wheel while the steering control
function is operating, a warning message
urging the driver to hold the steering
wheel and the symbol shown in the illustration
are displayed on the multi-information
display
If the driver continues to keep their hands off of the steering wheel, a
warning
message and the symbol shown in the illustration are displayed on the
multi-information
display, 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. Always keep your hands on
the steering wheel when using this system, regardless of warnings.
Depending on the vehicle and road conditions, the warning may not operate.
■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 displayed
on the multi-information display.
Depending on the vehicle and road conditions, the warning may not operate.
■White (yellow) lines are only on one side of road
The LDA system will not operate for the side on which white
(yellow) lines
could not be recognized.
■Conditions in which functions may not operate properly
In the following situations, the camera 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, "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.
- 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 is struck by a crosswind.
- The vehicle has just changed lanes or crossed an
intersection.
- Snow tires, etc. are equipped.
■Warning message
If the following warning message is displayed on the multi-information
display
and the LDA indicator illuminates in amber, follow the appropriate
troubleshooting
procedure.
| Warning message |
Details/Actions |
| "LDA Malfunction
Visit Your Dealer" |
The system may not be operating
properly.
→ Have the vehicle inspected at your
Toyota dealer. |
| "Front Camera Unavailable" |
The operation conditions of the camera
sensor (temperature, etc.) are not
met.
→ When the operation conditions of
the camera sensor (temperature,
etc.) are met, the LDA system will
become available. Turn the LDA
system off, wait for a little while,
and then turn the LDA system back
on. |
| "LDA Unavailable" |
The LDA system is temporarily canceled
due to a malfunction in a sensor
other than the camera sensor.
→ Turn the LDA system off and follow
the appropriate troubleshooting
procedures for the warning message.
Afterward, drive the vehicle
for a short time, and then turn the
LDA system back on. |
| "LDA Unavailable Below
Approx. 32MPH" |
The LDA system cannot be used as
the vehicle speed is less than approximately
32 mph (50 km/h).
→ Drive the vehicle at approximately
32 mph (50 km/h) or more. |
If a different warning message is displayed, follow the instructions
displayed
on the screen.
■Customization
Some functions can be customized. |
