2004 Lexus ES330 head light sensor

SWITCHES
34
HEADLIGHT SWITCH
(U.S.A.)
AUTOº position
The headlights and all other lights automatically turn on
depending on the darkness of the surroundings when the
ignition key is in the ONº position.*
NOTE:
* The sensitivity of the automatic light control sensor can be
changed.
Ask your Lexus dealer for details.
To turn on the lights manually, twist the knob on the end
of the lever.
First clickstop: Only the parking, tail, license plate, side
marker and instrument panel lights turn on.
Second clickstop: Headlights also turn on.When the headlights are on, the headlight indicator lights up in
the instrument cluster.
With the knob in the AUTOº position, there may be a case
that the headlights do not turn on immediately, even when
the vehicle enters a dark place such as a tunnel or parking
lot according to lighting conditions. In this case, we
recommend you to twist the knob manually to the second
clickstop to turn on the headlights immediately.
When the headlight switch is turned to the first or second
clickstop, the brightness of the instrument cluster will be
reduced slightly unless the instrument panel light control dial
is turned fully up.
DRL OFFº position
The daytime running light (DRL) system does not work
when the knob is set in this position.
For details, see the following Daytime Running Light (DRL)
Systemº.

SWITCHES
35
The automatic light control sensor is on the top of the driver's
side instrument panel.
Do not place anything on the instrument panel, and/or do not
affix anything on the windshield to block this sensor.
When the headlights are on, they automatically turn off about
30 seconds after any door or trunk lid is opened and closed with
the ignition key turned to the ACCº or LOCKº position.* If you
want to turn off the lights immediately, push the LOCKº button
on the wireless remote control key twice. The lights also can
be turned off immediately by pushing the LOCKº button on the
wireless remote control key with all the doors locked and the
trunk lid closed.
NOTE:
* The time before turning off the lights can be changed.
Ask your Lexus dealer for details.
When only the tail lights are on, they automatically turn off with
the driver's door opened and the ignition key turned to the
ACCº or LOCKº position.To turn on the lights again, turn the ignition key to the ONº
position, or twist the knob on the end of lever to the AUTOº
position and then twist the knob until the first or second
clickstop.
If you are going to park for over one week, make sure the knob
is in the AUTOº or DRL OFFº position.
Daytime Running Light (DRL) System
When the knob is set in the AUTOº position, the headlights
turn on at reduced intensity when the parking brake is released
with the engine started. They will not go off until the ignition
switch is turned off.
The headlights will automatically adjust to full intensity and/or
turn on the other lights depending on the darkness of the
surroundings.
To turn on the other exterior lights and instrument panel lights,
twist the knob to the first clickstop.
Twist the knob to the second clickstop to turn on the headlights
to full intensity for driving at night.
To cancel the DRL system, twist the knob to the DRL OFFº
position.

SWITCHES
37
HEADLIGHT SWITCH
(Canada)
To turn the lights on, twist the knob on the end of the lever.
FIRST CLICKSTOP: Only the parking, tail, license plate, side
marker and instrument panel lights turn on.
SECOND CLICKSTOP: Headlights also turn on.
THIRD CLICKSTOP (AUTOº): The headlights and all other
lights automatically turn on depending on the darkness of the
surroundings.*
NOTE:
* The sensitivity of the automatic light control sensor can be
changed.
Ask your Lexus dealer for details.
With the knob in the AUTOº position, there may be a case
that the headlights do not turn on immediately, even when
the vehicle enters a dark place such as a tunnel or parking
lot according to lighting conditions. In this case, we
recommend you to twist the knob manually to the second
clickstop to turn on the headlights immediately.
When the tail lights are on, the tail light indicator lights up in the
instrument cluster.
When the headlight switch is turned to the first or second
clickstop, the brightness of the instrument cluster will be
reduced slightly unless the instrument panel light control dial
is turned fully up.

SWITCHES
38
The automatic light control sensor is on the top of the driver's
side instrument panel.
Do not place anything on the instrument panel, and/or do not
affix anything on the windshield to block this sensor.
When the headlights are on, they automatically turn off about
30 seconds after any door or trunk lid is opened and closed with
the ignition key turned to the ACCº or LOCKº position.* If you
want to turn off the lights immediately, push the LOCKº button
on the wireless remote control key twice. The lights also can
be turned off immediately by pushing the LOCKº button on the
wireless remote control key with all the doors locked and the
trunk lid closed.
NOTE:
* The time before turning off the lights can be changed.
Ask your Lexus dealer for details.
When only the tail lights are on, they automatically turn off with
the driver's door opened and the ignition key turned to the
ACCº or LOCKº position.To turn on the lights again, turn the ignition key to the ONº
position, or turn the headlight switch off and then twist the knob
until the first or second clickstop.
If you are going to park for over one week, make sure the
headlight switch is off.
Daytime Running Light System
The headlights turn on at reduced intensity when the parking
brake is released with the engine started, even with the light
switch in the OFFº position. They will not go off until the
ignition switch is turned off.
To turn on the other exterior lights and instrument panel lights,
twist the knob to the first clickstop.
Twist the knob to the second clickstop to turn on the headlights
to full intensity for driving at night.
When setting the knob to the third clickstop (AUTOº), the
headlights will automatically adjust to full intensity and/or turn
on the other lights depending on the darkness of the
surroundings. Likewise, as the surroundings become brighter,
the headlights will turn to reduced intensity, ultimately turning
off the other lights.

OCCUPANT RESTRAINT SYSTEM
128

1Front passenger occupant classification system
(ECU and sensors)
2Airbag module for front passenger
(airbag and inflator)
3SRS warning light
4Airbag module for driver (airbag and inflator)
5Driver's seat position sensor
6Driver's seat belt buckle switch
7Front passenger's seat belt buckle switch
8AIRBAG OFFº and AIRBAG ONº indicator lights
9Front airbag sensors
10Airbag sensor assembly
The SRS front airbag system consists mainly of the above
components, and their locations are shown in the illustration.
The airbag sensor assembly consists of a safing sensor and
airbag sensor.The front airbag sensors constantly monitor the forward
deceleration of the vehicle. If an impact results in a forward
deceleration beyond the designed threshold level, the system
triggers the airbag inflators. At this time a chemical reaction in
the inflators very quickly fills the airbags with non-toxic gas to
help restrain the forward motion of the occupants. The front
airbags then quickly deflate, so that there is no obstruction of
the driver's vision should it be necessary to continue driving.
When the airbags inflate, they produce a loud noise and
release some smoke and residue along with non-toxic gas.
This does not indicate a fire. This smoke may remain inside the
vehicle for some time, and may cause some minor irritation to
the eyes, skin or breathing. Be sure to wash off any residue as
soon as possible to prevent any potential skin irritation with
soap and water. If you safely exit from the vehicle, you should
do so immediately.
Deployment of the airbags happens in a fraction of a second,
so the airbags must inflate with considerable force. While the
system is designed to reduce serious injuries, primarily to the
head and chest, it may also cause other, less severe injuries
to the face, chest, arms and hands. These are usually in the
nature of minor burns or abrasions and swelling, but the force
of a deploying airbag can cause more serious injuries,
especially if an occupant's hands, arms, chest or head are in
close proximity to the airbag module at the time of deployment.
This is why it is important for the occupant to: avoid placing any
object or part of the body between the occupant and the airbag
module; sit straight and well back into the seat; wear the
available seat belt properly; and sit as far as possible from the
airbag module, while still maintaining control of the vehicle.

STEERING WHEEL AND MIRRORS
185 When the outside air temperature is low, it may take a little
longer for the mirror to darken in response to the detection of
headlights.
CAUTION
Do not adjust the mirror while the vehicle is moving.
Doing so may cause the driver to mishandle the vehicle
and an accident may occur resulting in death or serious
injuries.
To ensure correct functioning of an anti-glare mirror
sensor located on the back side of the mirror, do not touch
or cover the sensor with your finger or a piece of cloth, etc.
Compass
The compass indicates the direction in which the vehicle
is heading. The illustration shown above indicates the
vehicle is heading north.
Push the COMPº switch to turn the compass system on
and off.
If the ignition switch was turned off with the system on, the
system will automatically turn back on when the ignition switch
is turned on.