Lexus LS 500h 2019, Owner'S Manual

Page: 302 / 607

300 4-5. Using the driving support systems
■
Lane departure alert function
When the system determines that the
vehicle might depart from its lane or
course
*
, a warning is displayed on the
multi-information display, and either a
warning buzzer will sound or the steer-
ing wheel will vibrate to alert the driver.
When the warning buzzer sounds or the
steering wheel vibrates, check the area
around your vehicle and carefully operate
the steering wheel to move the vehicle
back to the center of the lane.
Vehicle with BSM: When the system deter-
mines that the vehicle might depart from its
lane and that the possibility of a collision
with an overtaking vehicle in the adjacent
lane is high, the lane departure alert will
operate even if the turn signals are operat-
ing.
*
: Boundary between asphalt and the side
of the road, such as grass, soil, or a curb
■
Steering assist function
When the system determines that the
vehicle might depart from its lane or
course
*
, the system provides assis-
tance as necessary by operating the
steering wheel in small amounts for a
short period of time to keep the vehicle
in its lane.
If the system detects that the steering
wheel has not been operated for a fixed
amount of time or the steering wheel is not
being firmly gripped, a warning is displayed
on the multi-information display and the
function is temporarily canceled. If the
steering assist function is canceled, release
the steering wheel and then grip it again to
enable the function.
Vehicle with BSM: When the system deter-
mines that the vehicle might depart from its
lane and that the possibility of a collision
with an overtaking vehicle in the adjacent
lane is high, the steering assist function will
operate even if the turn signals are operat-
WARNING
●
The vehicle is struck by a crosswind.
●
The vehicle is affected by wind from a
vehicle driven in a nearby lane.
●
The vehicle has just changed lanes
through operation of the steering
wheel by the driver or crossed an
intersection.
●
Tires which differ by structure, manu-
facturer, brand or tread pattern are
used.
●
Snow tires, etc. are equipped.
●
The vehicle is being driven at
extremely high speeds.
Functions included in LTA system
LS500h_OM_General_OM50J66E