Exterior Lighting - Overview

Headlamps

The headlamp system consists of:

• Headlamp assemblies
• Headlamp switch
• LH multifunction switch
• BCM

The halogen headlamp system is a quad-beam pattern system. It consists of replaceable low and high beam bulbs in each headlamp assembly. The park and turn lamps are integrated into the headlamp assembly and the bulbs can be replaced separately.

Daytime Running Lamps (DRL)

The DRL system consists of the low beams and BCM .

The DRL system operates the low beam headlamps at a reduced intensity to increase the visibility of the vehicle in traffic.

Autolamps

The autolamp system consists of:

• Light sensor
• Headlamp switch
• BCM

The autolamp system provides light sensitive automatic on/off control of the exterior lamps. The autolamp system keeps the exterior lamps on for a preselected period of time after the ignition is turned OFF (20 seconds is the factory default setting). The preselected time is adjustable up to approximately 3 minutes by using the message center controls.

Stoplamps

The stoplamp system consists of:

• Stoplamp switch
• Rear lamp assemblies
• High mounted stoplamp
• BCM

The stoplamp switch is located on the brake pedal assembly. Voltage is supplied to the rear lamps and high mounted stoplamp when the brake pedal is applied.

Turn Signal and Hazard Lamps

The turn lamp system consists of:

• Front turn lamps
• Rear lamp assemblies
• Outside rear view mirrors
• LH multifunction switch
• Hazard flasher lamp switch (integrated into the FCIM )
• BCM

When the multifunction switch is placed in the left or right turn position, the corresponding turn lamps flash on and off.

When the hazard function is active, all the turn lamps flash on and off.

The front turn signal indicator lamps are integrated into the headlamp assemblies.

The rear lamps on 4-door vehicles share functionality with the stoplamps (combination stop/turn lamps).

If equipped, there are turn signal lamps located within the exterior mirrors.

Parking, Rear and License Plate Lamps

The parking, rear and license plate lamp system consists of:

• Front parking lamps
• Rear lamp assemblies
• License plate lamps
• Headlamp switch
• BCM

The front parking lamps are integrated into the headlamp assemblies.

The rear parking lamps are integrated into the rear lamp assemblies.

Fog Lamps

The fog lamp system consists of:

• Fog lamps
• Fog lamp switch (integrated into the headlamp switch)
• BCM

The fog lamps can only be turned on when the ignition is in RUN, the parking lamps are on, and the high beams are off.

Reversing Lamps

The reversing lamp system consists of:

• Reversing lamp (part of rear lamp assemblies)
• Reversing lamp switch (manual transmission)
• Reversing lamp relay (automatic transmission)
• TCM (automatic transmission)
• BCM

When the transmission is placed in REVERSE, the reversing lamps are illuminated.

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