steering TOYOTA C-HR 2016 Workshop Manual

3184-5. Using the driving support systems
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◆Vehicle sway warning
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 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.
■ To avoid operating LDA system by mistake
When not using the LDA system, use the LDA switch to turn the system off.

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Monochrome 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 operat-
ing.
Flashing in orange:
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.
Indications on multi-information display
1
2
3

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Color 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 operat-
ing.
Flashing in orange:
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.
1
2
3

3254-5. Using the driving support systems
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■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 50 km/h (32 mph) or more.
• System recognizes white (yellow) lines.
• Width of traffic lane is approximately 3 m (9.8 ft.) 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 150 m (492 ft.).
• No system malfunctions are detected. ( P. 328)
● Steering control function
This function operates when all of the following conditions are met in addi-
tion to the operation conditions fo r the lane departure alert function.
• Monochrome display:
Setting for steering assist on-off mode in screen of the multi-infor-
mation display is set to (on). ( P. 124)
• Color display:
Setting for “ Steering Assist” in screen of the multi-information
display is set to on. ( P. 128)
• 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, TRC and PCS are not operating.
• TRC or VSC is not turned off.
• Hands off steering wheel alert is not displayed. ( P. 326)

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● Vehicle sway warning
This function operates when all of the following conditions are met.
• Monochrome display:
Setting for sway alert on-off mode in screen of the multi-informa-
tion display is set to on. ( P. 124)
• Color display:
Setting for “ Alert” in screen of the multi-information display is
set to on. ( P. 128)
• Vehicle speed is approximately 50 km/h (32 mph) or more.
• Width of traffic lane is approximately 3 m (9.8 ft.) or more.
• No system malfunctions are detected. ( P. 328)
■ Temporary cancellation 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. 325)
■ Steering control function
Depending on the vehicle speed, lane departure situation, road conditions,
etc., the operation of the functions may not be recognized 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 play-
back, etc.
■ Hands off steering wheel alert
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 is displayed on the multi-information display.
If the driver continues to keep their hands off of the steering wheel, the
buzzer sounds, a warning message is displayed and the function is temporar-
ily canceled. This alert also operates in the same way when the vehicle is
driven with the steering wheel lightly gripped. However, depending on the
road conditions, etc., the function may not cancel.
■ 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.

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If a different warning message is displayed, follow the instructions displayed
on the screen.
■ Customization
The following settings can be changed.
For how to change settings, refer to P. 776.
“LDA unavailable”
The LDA system is temporarily can-
celed due to a malfunction in a sensor
other than the camera sensor.
 Turn the LDA system off and follow
the appropriate troubleshooting
procedures for warning message.
Afterward, drive the vehicle for a
short time, and then turn the LDA
system back on.
“LDA unavailable below
approx. 50 km/h (32 mph)”
The LDA system cannot be used as
the vehicle speed is approximately
less than 50 km/h (32 mph).
 Drive the vehicle at approximately
50 km/h (32 mph) or more.
Warning messageDetails/Actions
FunctionSetting details
Lane departure alert functionAdjust alert sensitivity
Steering control functionTurn steering wheel assistance on and off
Vehicle sway warningTurn function on and off
Adjust alert sensitivity

3504-5. Using the driving support systems
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■ Conditions under which the vehicle-to-vehicle distance control mode
may not function correctly
In the case of the following conditions, operate the brake pedal (or accelera-
tor pedal, depending on the situation) as necessary.
As the sensor may not be able to correctly detect vehicles ahead, the system
may not operate properly.
● When the vehicle ahead of you decelerates suddenly
● When the road curves or when the lanes
are narrow
● When steering wheel operation or your
position in the lane is unstable

3684-5. Using the driving support systems
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■ Conditions under which the vehicle-to-vehicle distance control mode
may not function correctly
In the case of the following conditions, operate the brake pedal (or accelera-
tor pedal, depending on the situation) as necessary.
As the sensor may not be able to correctly detect vehicles ahead, the system
may not operate properly.
● When the vehicle ahead of you decelerates suddenly
● When the road curves or when the lanes
are narrow
● When steering wheel operation or your
position in the lane is unstable

3764-5. Using the driving support systems
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■Operating conditions
● The Stop & Start system is operational when all of the following conditions
are met:
• The windshield defogger is turned off.
• The driver’s seat belt is fastened.
• The engine is adequately warmed up.
• The driver’s door is closed.
• The clutch pedal is not being depressed.
• The outside temperature is -5°C (23°F) or higher.
• The shift lever is in N.
• The hood is closed.
● In the following situations the engine may not be stopped by the Stop & Start
system. This is not a malfunction of the Stop & Start system.
• The air conditioning system is being used when the ambient temperature
is high or low.
• The battery is not sufficiently charged, such as if the vehicle has been
parked for a long time and the battery charge has decreased, the electric
load is large, the battery temperature is excessively low or the battery has
deteriorated, or is under going a periodic recharge.
• The brake booster vacuum is low.
• The steering wheel is being operated.
• Due to traffic or other circumstances the vehicle is stopped repeatedly.
• The vehicle is being driven in a high altitude area.
• Engine coolant temperature or tr ansmission fluid temperature is
extremely low or high.
• The battery fluid temperature is extremely low or high.
• For a while after the battery terminals have been disconnected and
reconnected.
• For a while after the battery has been replaced.

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● In the following situations, the engine will restart automatically if the engine
is stopped by the Stop & Start system. (To enable stopping of the engine by
the Stop & Start system, drive the vehicle.)
• The air conditioning system is turned on.
• The windshield defogger is turned on.
• The steering wheel is operated.
• The driver’s seat belt is unfastened.
• The driver’s door is opened.
• The Stop & Start cancel switch is pressed.
• The vehicle starts to roll on an incline.
● In the following situations, the engine may restart automatically if the engine
is stopped by the Stop & Start system. (To enable stopping of the engine by
the Stop & Start system, drive the vehicle.)
• The brake pedal is pumped or strongly depressed.
• The air conditioning system is being used.
• The battery is not sufficiently charged.
■ Hood
● Even if the hood is opened while the engine is stopped by the Stop & Start
system, the engine will stall and will not be able to be restarted by the auto-
matic engine start function. In this case, restart the engine using the normal
engine starting procedure. ( P. 233, 236)
● If the hood is closed after the engine is started with the hood open, the Stop
& Start system will not operate. Close the hood, turn the engine switch off,
wait 30 seconds or more, and then start the engine.