The vehicle lighting system consists of the exterior lighting
and of the interior lighting. The exterior lighting include the following
lamps:
• | Tail lamps, including the license lamp |
• | Turn signal lamps and emergency flashers |
• | Stoplamps, including the center high mounted stoplamp (CHMSL) |
Headlamps
The headlamps are operated when the driver places the headlamp switch
in the ON position. If the headlight switch is left in the ON position, after
the ignition switch has been turned OFF, the headlights will remain on until
turned off or the battery runs dead. With the headlights in the low beam position,
the high beams may be momentarily turned on or flashed with the dimmer switch
handle. The flash-to-pass feature is accomplished by pulling the dimmer switch
handle toward the driver. The headlights may be switched to high beam with
the opposite movement of the dimmer switch lever.
The daytime running lamps (DRL) illuminate the [high] low beam headlights
at a reduced intensity. With the headlamp switch placed in the OFF position,
during day light conditions, the BCM will activate the DRL. The DRL will operate
when the ignition switch is in the RUN position, the gear selector is not
in the PARK position and the parking brake is released. When these conditions
have been met and the ambient light sensor indicates daytime conditions, the
DRL will illuminate. Any function that turns on the headlights will cancel
DRL operation.
DRL operation in Manual Transmission equipped vehicles will occur when
the ignition switch is in the RUN position, and the parking brake is released.
Fog Lamps
With the ignition switch in the ON position, and the park lamps or low
beam headlights on, the fog lights will illuminate when the driver presses
the fog lamp switch. The state of the fog lamps (on or off) will remain the
same until the fog lamp switch is pressed again, or the ignition switch is
cycled OFF and ON. Fog lamp operation will be cancelled whenever the park
lamps, are turned OFF or the high beam headlights have been selected.
Turn Signal Lamps
The turn signal lamps may only be activated with the ignition switch
in the ON position. When the turn signal switch lever is placed in either
the left or right hand position, the respective turn signal lamps will flash.
The instrument panel cluster (IPC) turn signal indicator, either left or right
will also flash.
When the hazard switch is pressed, all turn signal lamps will flash
including both IPC turn indicators.
Stop Lamps
When the driver presses the brake pedal, all stop lamps and the center
high mounted stop lamp (CHMSL) illuminate.
Park/Tail Lamps
The park lamps, including the license lamps, are turned on when the
headlamp switch is placed in the PARK or HEADLAMP position, or anytime the
headlights are requested. If the park lights are turned on after the ignition
switch has been turned OFF, they will remain on until turned off or the battery
runs dead.
Remote Keyless Entry Exterior Lamp Illumination
When the remote function actuation (RFA) module receives a door unlock
command from the remote function actuator transmitter, the RFA module will
ground the door unlock signal circuit to the BCM, [send a class 2 message
to the body control module (BCM),] indicating that an UNLOCK command has been
received. The BCM will then flash the daytime running lamps (if selected ON
in personalization). With all the doors closed, and the RKE transmitter is
used to lock the doors, the daytime running lamps (if selected ON in personalization).
The daytime running lamps will not flash if the rear compartment is opened
using the RKE transmitter.
Backup Lamps
When the driver selects the REVERSE position, the backup lights illuminate.
Interior Lamps
The interior lighting group consists of the following lamps:
• | Roof rail courtesy lamps and/or reading lamps |
Courtesy Lamps
The courtesy lamps, including the reading lamps, may be manually turned
on by placing the IP dimmer switch in the DOME position. When the dome lamp
switch is in the DOOR position, the dome lamp will illuminate when a door
is opened. When a front door is opened, the dome and courtesy lamps turn on.
After all the doors have been closed the courtesy lamps will remain illuminated
approximately 10 seconds after the last door closes. The courtesy lamps will
normally turn off using the theater dimming feature. The courtesy lamps will
also turn off immediately if a door lock command is received with all the
doors closed, or if the ignition switch is turned to either the ON or RUN
position. When the driver places the dome lamp switch in the OFF position,
the dome lamp will be disabled.
Keyless Entry Interior Illumination
When the remote function actuation (RFA) module receives a door unlock
command from the remote function actuator transmitter, the RFA module will
ground the door unlock signal circuit to the BCM, [send a class 2 message
to the body control module (BCM),] indicating that an UNLOCK command has been
received. The BCM must have inputs that indicate that the ignition switch
is OFF, all the doors are closed. The BCM will then activate the inadvertent
power supply, providing battery positive voltage and also a pulse width modulated
(PWM) ground to the interior lamps. The BCM will keep the courtesy lamps on
approximately 20 seconds and then turn them off through the theater dimming
feature. If the door locks are activated to the LOCK position, the courtesy
lamps will deactivate immediately. When the ignition switch is turned to
either the ON or RUN position the courtesy lamps will deactivate in approximately
one second.
Reading Lamps
The rear view mirror contains two map lamps, each map lamp may be manually
turned on or off using it's own switch.
Rear Compartment Lamp
When the rear compartment (trunk lid) is opened, the rear compartment
lamp illuminates.
Interior Lamps Dimming
The interior lamps dimming group may use a combination of vacuum fluorescent
(VF) illumination and of incandescent lamps. The interior lamps dimming group
consists of the following lamps:
• | Door switches and window switches |
• | HVAC control head assembly |
• | The instrument panel cluster (IPC) |
• | Transaxle Shift Indicator Lamp |
When the headlight switch is turned to the PARK or HEAD
position, all incandescent back lighting turn on at the dimming level indicated
by the IP dimmer switch. When the IP dimmer switch is moved from MIN to MAX,
all vacuum fluorescent (VF) [liquid crystal display LCD], [light emitting
diode LED] displays, as well as all incandescent back lighting respond from
Minimum intensity to maximum brightness in response to the IP dimmer switch.
The ambient light sensor supplies the BCM with a signal for daytime conditions
or for low light conditions.
Driver controls include the following components.
• | The emergency flasher switch |
• | The headlamp dimmer switch |
• | The interior lamp switch |