Lexus LS500h, Manual, Page: 227 / 524

227
4-5. Using the driving support systems
LS500h_OM_(U)_1810
4
Driving
The system may not operate in the following situations:
●
If a 12-volt battery terminal has been disconnected and reconnected and then the vehicle
has not been driven for a certain amount of time
●
If the shift position is in R
●
When the VSC OFF indicator is illuminated (only the pre-collision warning function will
be operational)
■ Object detection function
The system detects objects based on their
size, profile, motion, etc. However, an object
may not be detected depending on the sur-
rounding brightness and the motion, pos-
ture, and angle of the detected object,
preventing the system from operating prop-
erly. (

P.228)
The illustration shows an image of detect-
able objects.
■ Cancelation of the pre-collision braking
If either of the following occur while the
pre-collision braking function is operating, it
will be canceled:
● The accelerator pedal is depressed
strongly.
● The steering wheel is turned sharply or
abruptly.
■
Conditions under which the system may
operate even if there is no possibility of a
collision
●
In some situations such as the following,
the system may determine that there is a
possibility of a frontal collision and oper-
ate.
• When passing a detectable object, etc.
• When changing lanes while overtaking a
detectable object, etc.
• When approaching a detectable object
in an adjacent lane or on the roadside,
such as when changing the course of
travel or driving on a winding road
• When rapidly closing on a detectable
object, etc.
• When approaching objects on the road-
side, such as detectable objects, guard-
rails, utility poles, trees, or walls
• When there is detectable object or other
object by the roadside at the entrance of
a curve
Detectable objects Vehicle speed
Relative speed between your
vehicle and object
Vehicles
Approx. 7 to 110 mph (10 to
180 km/h) Approx. 7 to 110 mph (10 to
180 km/h)
Bicyclists and pedestrians
Approx. 7 to 50 mph (10 to
80 km/h) Approx. 7 to 50 mph (10 to
80 km/h)