Lexus LC500 2017 Owner's Manual page 195

Operation conditions of each function
■
Lane departure alert function
●
This function operates when all of the fol-
lowing conditions are met.
• LKA 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.196)
● Steering assist function
This function operates when all of the fol-
lowing conditions are met in addition to the
operation conditions for the lane departure
alert function.
• Setting for "Steering Assist" in
multi-information 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 oper-
ating.
• TRAC or VSC is not turned off.
Vehicle sway warning function
●
This function operates when all of the fol-
lowing conditions are met.
• Setting for "Sway Warning" in
multi-information display 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.196)
● Lane centering function
This function operates when all of the fol-
LC500_LC500h_OM_OM11405U_(U)
4-5. Using the driving support systems
lowing conditions are met.
• LKA is turned on.
• Setting for "Steering Assist" and "Lane
Center" in
display are set to "On". (→P.78)
• 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.196)
• Vehicle does not accelerate or deceler-
ate 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 oper-
ating.
of the
• TRAC or VSC is not turned off.
• Steering assist function is not operating.
■ Temporary cancellation of functions
When operation conditions are no longer
met, a function may be temporarily can-
celed. However, when the operation condi-
tions are met again, operation of the
function is automatically restored.
■ 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 oper-
ating or the function may not operate at all.
of the
Lane departure alert function
■
The warning buzzer may be difficult to hear
due to external noise, audio playback, etc.
Hands off steering wheel alert
■
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 warn-
ing message is displayed on the multi-infor-
mation display.
If the driver continues to keep the hands off
195
of the multi-information
4