Lexus ES 300(h), Руководство пользователя

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257
4
4-5. Using the driving support systems
Dr
ivin
g
multi-information display is set to “On”.
(

P.135)
• 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.258)
●
Lane centering function
This function operates when all of the fol-
lowing conditions are met.
• LTA is turned on.
• Setting for “Steering Assist” and “Lane
Center” in of the multi-information
display are set to “On”. (

P.135)
• 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.258)
• 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.257)
• The vehicle is being driven in the center
of a lane.
• Steering assist function is not operating.
■ Temporary cancelation of functions
● When operation conditions are no longer
met, a function may be temporarily can-
celed. However, when the operation con-
ditions are met again, operation of the
function is automatically restored.
(

P.256)
● If the operation conditions (

P.256) are
no longer met while the lane centering
function is operating, the steering wheel
may vibrate and the buzzer may sound to
indicate that the function has been tem-
porarily canceled. However, if the “Steer-
ing wheel vibration” customization
setting is set to “On”, the system will notify
the driver by vibrating the steering wheel
instead of sounding the buzzer.
■ 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 oper-
ate at all.
● The steering control of the function is
overridden by the driver’s steering wheel
operation.
● Do not attempt to test the operation of
the steering assist function.
■
Lane departure alert function
●
The warning buzzer may be difficult to
hear due to external noise, audio play-
back, etc. Also, it may be difficult to feel
steering wheel vibrations due to the road
conditions, etc.
●
If the edge of the course
*
is not clear or
straight, the lane departure alert function
may not operate.
● Vehicle with BSM: It may not be possible
for the system to determine if there is a
danger of a collision with a vehicle in an
adjacent lane.
●
Do not attempt to test the operation of
the lane departure alert function.
*
: Boundary between asphalt and the side
of the road, such as grass, soil, or a curb
■ Hands off steering wheel warning
In the following situations, a warning mes-
sage urging the driver to hold the steering
wheel and the symbol shown in the illustra-
tion are displayed on the multi-information
display to warn the driver. The warning
stops when the system determines that the
driver holds the steering wheel. Always