244
4-5. Using the driving support systems
LS500h_OM_OM50F42U_(U)
Inside of displayed white lines is
black
Indicates that the system is not able to rec-
ognize white (yellow) lines or is temporar-
ily canceled.
■ 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.246)
● Steering assist function
This function operates when all of the fol-
lowing conditions are met in addition to the
operation conditions for the lane depar-
ture alert function.
•Setting for “Steering Assist” in of the
multi-information display is set to “On”.
(→P.86)
• 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.
• Hands off steering wheel alert is not dis-
played. (→P.245)
● Vehicle sway warning function
This function operates when all of the fol-
lowing conditions are met.
• Setting for “Sway Warning” in of the
multi-information display is set to “On”.
(→P.86)
• 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.246)
● Lane centering function
This function operates when all of the fol-
lowing conditions are met.
• LKA is turned on.
• Setting for “Steering Assist” and “Lane
Center” in of the multi-information
display are set to “On”. (→P.86)
• 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.246)
• 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.
• TRAC or VSC is not turned off.
• Hands off steering wheel alert is not dis-
played. (→P.245)
• 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
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