Lexus LS500h, Manual, Page: 38 / 524

38
1-1. For safe use
LS500h_OM_(U)_1810
Sensors
Hood
Lifters
■ Pop Up Hood precautions
● Before scrapping your vehicle, make sure
to contact your Lexus dealer.
● The Pop Up Hood system cannot be
reused once it has operated. Have it
replaced by your Lexus dealer.
■ PCS-linked Pop Up Hood operation
control
If the PCS (Pre-Collision System) deter-
mines that the possibility of a collision with a
pedestrian or bicyclist is high, the Pop Up
Hood will be prepared to operate.
■
Pop Up Hood operational conditions
The Pop Up Hood will operate when the
vehicle detects an impact such as the fol-
lowing:
●
The front bumper detects a frontal impact
equivalent to or greater than that of a
pedestrian while the vehicle being driven
within the operational speed range of
approximately 16 to 34 mph (25 to 55
km/h). (The system is operated by an
impact of threshold level or greater, even
in the case of a minor collision that may
not leave a trace on the front bumper.
Also, depending on the impact condi-
tions or vehicle speed, the system may
operate by a collision with a light or small
object or a small animal.)
●
In other situations, such as the following
the system may operate when an impact
is applied to the lower part of the vehicle
or front bumper:
• Colliding with a curb
• Falling into a deep hole
• Landing hard
• Hitting the slope of a parking lot, an
undulating road, a protruding object or
falling object
■ Conditions under which the Pop Up
Hood may not operate properly
● If a pedestrian collides with the right or
left corner of the front bumper or the side
of the vehicle. As such impacts may be
difficult to detect, the system may not
operate.
● If the vehicle speed is not detected cor-
rectly, such as if the vehicle is sliding side-
ways, the system may not operate
properly.
■
Conditions under which the Pop Up
Hood will not operate
The Pop Up Hood will not operate in the
following situations:
●
Colliding with a lying person
Pop Up Hood
In the event of a frontal collision
with a body, such as a pedestrian,
the Pop Up Hood system raises the
hood to reduce the possibility of a
serious impact to the pedestrian’s
head area by adding clearance to
the engine compartment.
When the sensors located at the
back of the front bumper detect a
frontal impact with a body, such as a
pedestrian, which meets or
exceeds the threshold level while
the vehicle is being driven within
the operational speed range, the
system operates.
System components
A
B
C