Lexus ES 2015 - Page 243

241
4
4-5. Using the driving support systems
Driving
as necessary to correct the path of the
vehicle and ensure safety.
*
: Boundary between asphalt and the side
of the road, such as grass, soil, or a curb
Q Operation conditions of each function
O 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.
*1
• System recognizes white (yellow) lane
lines or a course
*2
. (When a white [yel-
low] line or a course
*2
is recognized on
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. (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.243)
*1
: The function operates even if the vehicle
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
O 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.
• 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.
O Vehicle sway warning function
This function operates when all of the fol-
lowing conditions are met.
• Setting for “Warning” in of the multi-
information display is set to “On”.
(P.107)
• Vehicle speed is approximately 50 km/h
(32 mph) or more.
• Width of traffic lane is approximately 3 m
(9.8 ft.) or more.
• No system malfunctions are detected.
(P.243)
O Lane centering function
This function operates when all of the fol-
lowing conditions are met.
• LTA is turned on.
• Setting for “Lane Centre” in of the
multi-information display is set to “On”.
(P.107)
• This function recognizes white (yellow)
lane lines or the position of a preceding
vehicle (except when the preceding vehi-
cle is small, such as a motorcycle).
• The dynamic radar cruise control with
full-speed range is operating in vehicle-
to-vehicle distance control mode.
• Width of traffic lane is approximately 3 to
4 m (10 to 13 ft.).
• Turn signal lever is not operated.
• Vehicle is not being driven around a
sharp curve.
• No system malfunctions are detected.
(P.243)
• 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, TRC and PCS are not oper-
ating.
• TRC or VSC is not turned off.
• Hands off steering wheel warning is not
displayed. (P.242)
• The vehicle is being driven in the center
of a lane.
• Steering assist function is not operating.
Q Temporary cancelation of functions
O When operation conditions are no lon-