Lexus LS500H 2022 - Emergency Support Brake

40
1-2. Using Advanced Drive
If the system determines that the possi-
bility of a collision is high, a buzzer will
sound, the seat belt will vibrate, and
message urging the driver to brake will
be displayed, and then the brakes will
be operated.
After the vehicle has been stopped, it
will remain stopped by system control.
■ Operating conditions
This function can be operated when all of
the following conditions are met:
● The advanced driving support is operat-
ing normally. (P.22)
● The vehicle is being driven by controlled
driving.
● The vehicle speed is between approxi-
mately 3 mph (5 km/h) and 80 mph (128
km/h).
● The relative speed between your vehicle
and the detected vehicle ahead is 3 mph
(5 km/h) or more.
However, in situations such as the following,
this function may not operate or operation
may be delayed:
● When a message urging the driver to
hold the steering wheel is displayed
(P.24)
● When a message urging the driver to
take control of the vehicle is displayed
(P.24)
● When the accelerator pedal is being
depressed
● When the brake pedal is being
depressed
● When the steering wheel is being oper-
ated
Also, this function will not operate in the fol-
lowing situations:
● When the vehicle has not been driven a
certain amount after a terminal of the
12-volt battery has been disconnected
and reconnected
● When the VSC OFF indicator is illumi-
nated
■ Detectable objects
The system detects an object as a vehicle
(preceding or parked vehicle) based on its
size, shape, and movement.
Depending on the ambient brightness,
movement, posture and direction of an
object, it may not be detected and the sys-
tem may not operate properly. (P.42)
The system detects shapes, such as the fol-
lowing, as a vehicle.
■ Suspension control
When the system determines that the possi-
bility of a collision is high, the Adaptive Vari-
able Suspension System controls the
damping force of the shock absorbers to
help maintain an appropriate vehicle pos-
ture.
■ Cancelling emergency support brake
operation
While this function is operating, if any of the
following are performed, operation may be
cancelled:
Emergency support brake
While the advanced driving sup-
port is operating, if the system
determines that the possibility of a
rear-end collision with a preceding
vehicle is high, a warning urging the
driver to take evasive maneuvers is
output and the brakes are applied
to help avoid the collision or help
reduce the impact of the collision.
Function description