Lexus ES350 Service Manual page 201

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. (P. 203)
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
display is set to "On". (P. 78)
• 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.
• Hands off steering wheel alert is not displayed. (P. 201)
Vehicle sway warning
●
This function operates when all of the following conditions are met.
• Setting for "Sway Warning" in
play is set to "On". (P. 78)
• 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. 203)
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 auto-
matically restored. (P. 201)
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 functions may not operate.
Lane departure alert function
■
The warning buzzer may be difficult to hear due to external noise, audio playback, etc.
Also, it may be difficult to feel steering wheel vibrations due to the road conditions, 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 temporarily 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.
ES350_OM_OM33B64U_(U)
4-5. Using the driving support systems
(Settings display) of the multi-information
(Settings display) of the multi-information dis-
I n f o r ma t i o n P r o v i d e d b y :
201
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