Lexus GS350 Owner's Manual page 257

Vehicle sway warning function
●
This function operates when all of the following conditions are met.
• Setting for "Sway Warning" in
(→P. 100, 108)
• 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.
• LKA is turned on.
• Setting for "Steering Assist" and "Lane Center" in
display are set to "On". (→P. 100, 108)
• System recognizes white (yellow) lines.
• Dynamic radar cruise control with full-speed range is operating.
• Width of traffic lane is approximately 8.2 to 13.5 ft. (2.5 to 4.1 m).
• 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 656 ft. (200 m).
• 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 (Pre-Collision System) are not operating.
• TRAC or VSC is not turned off.
• GS F: Hands off steering wheel alert is not displayed. (→P. 255)
• Steering assist function is not operating.
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. 254)
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.
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
■
GS350/GS300: When the system determines that the driver has removed the hands
from the steering wheel while the steering assist function or lane centering function is
operating, a warning message is displayed on the multi-information display.
If the driver continues to keep the hands off of the steering wheel, a buzzer sounds, a
warning message is displayed. This alert also operates in the same way when the driver
continuously operates the steering wheel only a small amount. However, depending on
the road conditions, etc., the function may not cancel.
GS350_300_GS F_OM_OM30G34U_(U)
4-5. Using the driving support systems
of the multi-information display is set to "On".
255
of the multi-information
4