2010 Lexus HS250h camera

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2-4. Using other driving systems
2
When driving
HS250h_U_75033U(Canada)
Disabling pre-collision brakingPre-collision braking disabled
Pre-collision braking enabled
The “PCS” warning light will
come on when pre-collision
braking is disabled.
Radar sensorThe radar sensor detects vehicles
or other obstacles on or near the
road ahead and determines
whether a collision is imminent
based on the position, speed, and
heading of the obstacles.
For vehicles equipped with the lane
keeping assist, in addition to the
radar sensor, the vehicle uses a
lane recognition camera in order
to determine whether or not a colli-
sion is likely to occur. (→P. 2 2 4 )

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4-3. Do-it-yourself maintenance
HS250h_U_75033U(Canada)
■Use a CR1632 lithium battery
●Batteries can be purchased at your Lexus dealer, local electrical appliance
shops or camera stores.
●Replace only with the same or equivalent type recommended by the manufac-
turer.
●Dispose of used batteries according to local laws.
■When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealers. Your Lexus dealer
can replace the battery for you.
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart access system with push-button start and wireless remote control will
not function properly.
●The operational range will be reduced.
CAUTION
■Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child, they can
cause choking. Failure to do so could result in death or serious injury.
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other components inside the remote control.
●Do not bend either of the battery terminals.

5
When trouble arises
509
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)
(Flashes)
(If equipped)
Indicates that your vehi-
cle is nearing the vehicle
ahead (in radar cruise
mode)
A buzzer also sounds.
At the same time,
will appear on
the head-up display (the
image flashes).
Slow the vehicle by apply-
ing the brakes.
(Flashes)
(If equipped)
Indicates a malfunction in
the LKA system A buzzer also sounds.Restart the hybrid system
and then reactivate the
lane keeping assist system.
Indicates that the LKA is
suspendedA buzzer also sounds.
•The camera sensor temperature is higher
than the operation tem-
perature range.
• The power steering
system operation is
restricted.
Reactivate the lane keep-
ing assist system.
Wa r n i n g m e s s a g eDetailsCorrection procedure