Lexus ES 250 Owner's Manual page 229

228
4-5. Using the driving support systems
play
Displayed when the multi-information dis-
play is switched to the driving assist system
information screen.
Inside of displayed lines is white

Indicates that the system is recognizing
white (yellow) lines or a course
the vehicle departs from its lane, the
white line displayed on the side the
vehicle departs from flashes orange.
Inside of displayed lines is black

Indicates that the system is not able to
recognize white (yellow) lines or a
*
course or is temporarily canceled.
*
: Boundary between asphalt and the side
of the road, such as grass, soil, or a curb
■ Operation conditions of each function
Lane departure alert function
●
This function operates when all of the fol-
lowing conditions are met.
• LTA is turned on.
• Vehicle speed is approximately 50 km/h
(32 mph) or more.
• System recognizes white (yellow) lane
lines or a course
low] line or course
only one side, the system will operate
only for the recognized side.)
• Width of traffic lane is approximately 3 m
(9.8 ft.) or more
• Turn signal lever is not operated. (Vehicle
with BSM: Except when another vehicle
is in the lane on the side where the turn
signal was operated)
• Vehicle is not being driven around a
sharp curve.
• No system malfunctions are detected.
(P.230)
*1
: The function operates even if the vehicle
*
. When speed is less than approximately 50
km/h (32 mph) when the lane centering
function is operating.
*2
: Boundary between asphalt and the side
of the road, such as grass, soil, or a curb
● 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.110)
• 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 oper-
ating.
• TRC or VSC is not turned off.
• Hands off steering wheel warning is not
displayed. (P.229)
● Vehicle sway warning function
This function operates when all of the fol-
lowing conditions are met.
• Setting for "Sway Warning" in
*1
*2
. (When a white [yel-
*2
is recognized on
of the
of the