Exterior Lamps - Description

DESCRIPTION

The exterior lighting system for this model includes the following exterior lamp units:

- Center High Mounted Stop Lamp - A Center High Mounted Stop Lamp (CHMSL) is centered near the top of the vertical surface of the deck lid at the rear of the vehicle.
- Front Fog Lamps - Vehicles equipped with this option have a front fog lamp unit mounted near each outboard end of the front fascia, below the front lamp units.
- Front Lamp Units - Standard equipment includes a bi-functional, single filament halogen front lamp unit. A bi-functional High Intensity Discharge (HID) front lamp unit is optional. The Adaptive Front Lighting System (AFLS) is included when the vehicle is equipped with the optional HID front lamp unit. The front lamp units are mounted at the front of each front fender panel at the outboard side of the grille opening.
- License Plate Lamp - Two standard rear license plate lamp units are mounted to the rear fascia, just above the license plate tub formation.
- Outside Mirror Lamps - The outside rear view mirrors are available with signal lamps and approach lamps. The signal lamps incorporate three amber Light Emitting Diode (LED) units behind a clear lens located on the lower, forward-facing outer cap of each mirror head. The outside mirror signal lamps also function as repeater lamps in vehicles manufactured for sale in certain export markets where they are required. The signal lamps are serviced only as a unit with the outside rear view mirror assembly. The approach lamps are used on vehicles equipped with the Passive Entry (PE) system and incorporate an LED unit located behind the outer edge of each outside rear view mirror glass and are serviced only as a unit with the mirror glass and case assembly.
- Rear Lamp Units - A rear lamp unit is mounted to the rear of each quarter panel on either side of the deck lid opening.
- Rear Fog Lamps - In certain export markets where they are required, two rear fog lamps are integral to the rear lamp units.

These exterior lighting lamps and their controls are combined to provide the following exterior lighting features:

- Automatic Headlamps - Automatic headlamps are standard equipment on this vehicle. The headlamp switch includes an A (Automatic) position and an automatic headlamp sensor senses ambient light levels. The automatic headlamp sensor is integral to the sun load sensor located on the top of the instrument panel. When the A position of the headlamp switch is selected, the headlamps are turned ON and OFF automatically as ambient light levels dictate.
- Adaptive Front Lighting System - Vehicles equipped with the High Intensity Discharge (HID) front lamp units include the Adaptive Front Lighting System (AFLS). AFLS includes an electronic AFLS module mounted to the right of the Power Distribution Center (PDC) in the engine compartment. The AFLS module monitors vehicle braking, steering and suspension system inputs then automatically adjusts the aim of the headlamp beams up and down or right and left as appropriate using leveling and swiveling stepper motors integral to both front lamp units for improved visibility when driving at night.
- Backup Lamps - The backup (or reverse) lamps include a clear bulb, reflector and clear lens that are integral to each rear lamp unit.
- Brake Lamps - The brake (or stop) lamps include multiple Light-Emitting Diode (LED) units, a reflector and a red lens that are integral to each rear lamp unit, and the red lens and multiple LED units of the CHMSL.
- Daytime Running Lamps - Multiple Light-Emitting Diode (LED) units in a light strip integral to each front lamp unit are illuminated when appropriate to serve as the Daytime Running Lamps (DRL).
- Exterior Lamp Fail-Safe Operation - The Instrument Cluster (IC) (also known as the Common Instrument Cluster/CIC) and the Body Control Module (BCM) (also known as the Common Body Controller/CBC) provide a fail-safe feature which will automatically turn ON the low beam headlamps and all park lamps when the ignition switch is in the ON position and there is no detected input from either the headlamp switch or the multi-function switch, no communication from the Steering Control Module (SCM) or Steering Angle Sensor (SAS) or when the Controller Area Network (CAN) data bus is inoperative.
- Exterior Lamp Load Shedding - The Body Control Module (BCM) (also known as the Common Body Controller/CBC) provides a battery saver feature which will automatically turn OFF all exterior lamps that remain ON with the ignition switch in the LOCK position after a timed interval of about eight minutes.
- Front Fog Lamps - The optional front fog lamps include the bulb, reflector and projector lens of each adjustable front fog lamp unit.
- Hazard Warning Lamps - The hazard warning lamps include the bulbs, Light Emitting Diode (LED) units and lenses of each lamp in the right and left, front and rear turn signal circuits.
- Headlamp Delay - When this feature is enabled the low or high beam headlamps remain illuminated for a programmable delay interval of 0 (disabled), 30, 60 or 90 seconds after the ignition switch has been turned to the OFF position. This feature is customer programmable using the Electronic Vehicle Information Center (EVIC) switches and the U-Connect Touch(TM) screen module in the Integrated Center Stack (ICS).
- Headlamps - Two headlamp systems are available on this vehicle for domestic markets. The standard halogen headlamp system includes a bi-functional single filament halogen bulb in each front lamp unit for low or high beam headlamps. The optional HID headlamp system includes a bi-functional single HID lighting element/igniter unit for low or high beam headlamps. In either halogen or HID form, an electric solenoid motor and mechanism internal to the front lamp unit closes a shutter for low beams and opens the shutter for high beams. HID headlamps are standard equipment for all vehicles manufactured for export markets. The HID front lamp units each include an electronic ballast module. Both headlamp systems also include an adjustable reflector and clear lens integral to each front lamp unit.
- Headlamps With Wipers - When this feature is enabled and the AUTO position of the headlamp switch is selected, the headlamps are turned ON automatically whenever the windshield wipers are turned ON; and, if the headlamps were turned ON automatically when the wipers were turned ON and the appropriate ambient light conditions exist, they will also turn OFF automatically when the wipers are turned OFF. This feature is customer programmable using the Electronic Vehicle Information Center (EVIC) switches and the U-Connect Touch(TM) screen module in the Integrated Center Stack (ICS).
- Optical Horn - Also known as flash-to-pass, the beam selection function of the multi-function switch control stalk has a momentary intermediate position that allows the headlamp high beams to be flashed momentarily, without changing the headlamp beam selection.
- Park Lamps - The front park lamps include the amber bulbs, the reflectors and the clear lenses of each park lamp and the multiple Light Emitting Diode (LED) units and amber lens of each front side marker lamp integral to each front lamp unit. The rear tail lamps include the multiple LED units, a reflector and a red lens integral to both the rear lamp units, the multiple LED units and red lens of each rear side marker lamp integral to each rear lamp unit as well as the bulbs and clear lenses of each license plate lamp unit.
- Rear Fog Lamps - Rear fog lamps are available only in certain export markets where they are required equipment. The rear fog lamps include the multiple Light Emitting Diode (LED) units a red lens and a reflector that are integral to each rear lamp unit.
- SmartBeam(R) Automatic Headlamps - Vehicles equipped with the optional SmartBeam(R) automatic (auto high) headlamp option include a unique digital light-sensing imager camera integral to the electrochromic inside rear view mirror and programming that allows it to detect light levels, their color and their source within the path ahead of the vehicle. When SmartBeam(R) is enabled, the A (Automatic) position of the headlamp switch is selected, the high beam position of the headlamp dimmer switch is selected and the ambient light conditions are appropriate, the headlamp high beams are turned ON and OFF automatically as needed.
- Turn Signal Lamps - The front turn signal lamps include an amber bulb, a reflector, and a clear lens that are integral to each front lamp unit. On vehicles equipped with the optional outside mirror signal lamps, there are several amber Light-Emitting Diode (LED) units and a clear lens integral to each mirror signal lamp that are also activated by the turn signal circuits for the same side of the vehicle. For domestic markets the rear turn signal lamps include the multiple LED units, a reflector and a red lens integral to each rear lamp unit. For export markets the rear turn signal lamps include an amber bulb, a reflector and a clear lens integral to each rear lamp unit.

Other components of the exterior lighting system for this vehicle include:

- Adaptive Front Lighting System Module - An Adaptive Front Lighting System (AFLS) module is located on the right side of the Power Distribution Center (PDC) in the engine compartment. Description and Operation.
- Axle Sensors - Vehicles equipped with HID headlamps have an axle sensor for both the front and the rear axles, which monitor the suspension height of the vehicle.
- Backup Lamp Switch - A Transmission Range Sensor (TRS) integral to the solenoid pack on the valve body of the electronic automatic transmission performs the backup lamp switch function for this vehicle.
- Body Control Module - The Body Control Module (BCM) (also known as the Common Body Controller/CBC) is located beneath the instrument panel on the passenger side of the vehicle. Description and Operation.
- Brake Lamp Switch - A lever-actuated brake pedal position sensor serves as the brake lamp switch in this vehicle. The brake pedal position sensor is located on the brake pedal support bracket under the instrument panel and is actuated by a pin on the brake pedal arm when the brake pedal is depressed.
- Controller Antilock Brake - A Controller Antilock Brake (CAB) (also known as the Antilock Brake Module/ABM or the Antilock Brake System/ABS module) is located in the engine compartment below the brake master cylinder. Anti-Lock Brake System Module - Description.
- Electronic Ballast Module - Vehicles equipped with the HID headlamps have an electronic ballast module secured to the underside of each front lamp unit. Each module controls the HID lighting element/igniter within the front lamp unit to which it is mounted.
- Hazard Switch - A latching push button-actuated hazard switch is integral to the instrument panel switch bank in the lower vehicle feature controls module (also known as the Integrated Center Stack/ICS) located in the center stack area of the instrument panel.
- Headlamp Leveling And Swiveling Motors - A headlamp leveling stepper motor and a headlamp swiveling stepper motor is located within each front lamp unit housing of vehicles manufactured with HID headlamps.
- Headlamp Switch - A rotary knob-actuated headlamp switch is located in the headlamp switch bezel of the instrument panel. The headlamp switch is used to select the park lamps, headlamps or fog lamps.
- Instrument Cluster - The Instrument Cluster (IC) is also known as the Common Instrument Cluster (CIC) in this vehicle. The IC is located in the instrument panel above the steering column opening, directly in front of the driver. Instrument Cluster - Description.
- Instrument Panel Switch Bank - The instrument panel switch bank contains the hazard switch. The switch bank is located in the lower vehicle feature controls module (also known as the Integrated Center Stack/ICS) located in the center stack area of the instrument panel. Instrument Cluster Switch Pod - Description.
- Multi-Function Switch - The multi-function switch is located on the steering column, just below the steering wheel. A control stalk that extends from the left side of the switch is used to select the turn signal lamps (right or left) and to select the headlamp beam (low, high or optical horn).
- Park Brake Switch - A park brake switch is located on the park brake mechanism located on the driver side cowl side inner panel below the instrument panel.
- SmartBeam(R) Module - The SmartBeam(R) automatic high beam digital imaging camera and system logic circuitry is integral to the electrochromic inside rear view mirror on the inside of the windshield.
- Steering Control Module - The Steering Control Module (SCM) is located within the Steering Column Control Module (SCCM) on the top of the steering column, just below the steering wheel Steering Column Module - Description.
- Turn Signal Cancel Cam - The turn signal cancel cam is integral to the clockspring. The turn signal cancel cam provides automatic turn signal cancellation as the steering wheel is rotated back to its centered position following a vehicle turning maneuver.

Hard wired circuitry connects the exterior lighting system components to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system and to the exterior lighting components through the use of a combination of soldered splices, splice block connectors and many different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the various wire harness connectors, splices and grounds.