Toyota Corolla: Using the driving support systems / LTA (Lane Tracing Assist)
When driving on highways and freeways with white (yellow) lane lines, this function
alerts the driver when the vehicle might depart from its lane or course* and provides
assistance by operating the steering wheel to keep the vehicle in its lane or course*.
Furthermore, the system provides steering assistance when dynamic radar cruise control
with full-speed range is operating to keep the vehicle in its lane.
The LTA system recognizes white (yellow) lane lines or a course* using the front
camera. Additionally, it detects preceding vehicles using the front camera and radar.
WARNING
■Before using LTA system
- Do not rely solely upon the LTA system. The LTA 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.
- When not using the LTA system, use the LTA switch to turn the system
off.
■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
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.
- 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.
■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.217) 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.217) and the preceding
vehicle is swaying. (Your vehicle may sway accordingly and depart from the lane.)
- When the follow-up cruising display is displayed (®P.217) 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 display is displayed (®P.217) and the preceding
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 mistaken for white (yellow) lines
are present on the side of the road (guardrails, reflective poles, etc.).
●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.
- 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 headlight is dim due to its lens being dirty or it being misaligned.
- The vehicle is struck by a crosswind.
- 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.
- Snow tires, etc. are equipped.
- The vehicle is being driven at extremely high speeds.
■ Enabling/disabling the pre-collision system
The pre-collision system can be enabled/disabled on
of the multi-information
display.
The system is automatically enabled each time the engine switch is turned to
ON...
■ 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...
Other information:
■ Steering switch
By pressing the phone switch, a call can be received or ended without taking
your hands off the steering wheel.
A - Phone switch
If the switch is pressed during a call, the call will end.
If the switch is pressed when an incoming call is received, the call will
be answered...
1 OFF (“LOCK” position)
The steering wheel is locked and the key can be removed. (vehicles with a continuously
variable transmission: The key can be removed only when the shift lever is in P.)
2 ACC (“ACC” position)
Some electrical components such as the audio system can be used...