Lighting Controls

Exterior Lighting Controls

Exterior light controls are listed here in alphabetical order.

Backup Lights

Backup lights provide a warning to pedestrians and other drivers that the vehicle is, or is about to, back up.

Daytime Running Lights

The daytime running lights (DRL), if equipped, are automatically activated when the ignition is switched on and the parking brake is released. The DRL operate until the parking brake is applied or the headlights are turned on.

Some vehicles may be equipped with a momentary DRL override switch. See Fig.. Press the upper half of the switch to briefly deactivate the DRL.

Spotlight Switch

Dome Light Switch

Utility Lights Switch

Foot Well Lights Switch

Road Lights Switch

Rear Strobe Light Switch

Front Strobe Light Switch

Fog Lights Switch

Headlights/Marker Lights Switch

DRL Override Switch

Fig. 1, Typical Light Controls

Fog Lights

Fog lights are designed to reduce glare in foggy conditions. The low-beam headlights must be on in order to turn the fog lights on. Press the upper half of the switch to activate the fog lights. See Fig..

Hazard Warning Lights

The hazard warning light switch tab is located below the turn signal lever. Pull the tab out to activate the hazard warning lights. When the hazard warning lights flash, all turn signal lamps and both of the indicator lights on the control panel will flash. Move the turn signal lever up or down to cancel the warning lights.

Headlights

A three-position paddle switch is used to operate the exterior lights. See Fig.. Move the paddle switch up to activate the headlights, instrument panel, clearance lights, marker lights, and taillights. To deactivate all vehicle lighting, ensure the switch is in the middle position. Move the paddle switch down to activate only the clearance, instrument panel, marker lights, and the taillights.

High-Beam Headlights

To activate the high-beam headlights, pull the turn signal lever towards the driver while the low-beam headlights are on. Pull the turn signal lever back again to deactivate the high beams and return to low beam headlights.

When the high-beam headlights are on, a blue light illuminates on the instrument cluster.

Marker Light Interrupt

A momentary interrupt switch temporarily deactivates the marker lights and taillights. With the vehicle lights on, press and release the interrupt switch to briefly turn the marker lights and taillights off. To alert the driver that the switch is functioning, the dash lights will flash with the marker lights when the switch is actuated.

Road Lights

Press the upper half of the road light switch to activate the road lights mounted on the bottom edge of the front bumper or recessed in the front bumper. See Fig..

Spotlight

The spotlight switch is located on the pivoting handle of the spotlight. There may be a single spotlight assembly mounted above the driver's door, or one above each door.

Turn Signals

The turn signal lever is mounted on the steering column. Push the lever down to activate the left-turn signal lights; pull the lever up to activate the right-turn signal lights. To manually cancel the signal, move the lever to the neutral position. When a turn signal is activated, a green indicator light flashes on the instrument cluster.

Utility Lights

Utility lights can be swivel-mounted on top of the cab, mounted on the intake/exhaust support, or flush-mounted in the back of the cab or sleeper. Press the upper half of the switch to activate the utility lights. See Fig.. Press the lower half of the switch to turn the utility lights off. When activated, a red indicator light in the switch is illuminated, if equipped

Interior Lighting Controls

Interior light controls are listed here in alphabetical order.

Baggage Compartment Lights

Baggage compartment lights are located on the underside of the lower bunk, on both sides. Both lights turn on when either baggage compartment door is opened to illuminate the baggage compartment. The lights also come on when the lower bunk is raised.

Cab Overhead Console Lights

The overhead console includes a clear reading light, a clear dome light, and a red map light. The dome lights illuminate when a door opens, then stay on for a short time after both doors are closed. Press the lens of the reading light, dome light, or map light to activate each one.

Foot Well Lights

When the driver or passenger doors are opened, red lights illuminate both foot wells. These lights can also be activated with the foot well light switch. See Fig.. Press the upper half of the switch to turn the foot well lights on, press the lower half of the switch to turn them off.

The sleeper foot well switch is located in the lower switch module in the sleeper. It looks identical to the cab foot well switch. See Fig.. When the switch is activated, two lights illuminate the sleeper floor.

Instrument Panel Lights

The instrument panel lights illuminate when the headlights are turned on. When the headlights are on, the panel lamp switch controls the intensity of the instrument panel lamps. Slide the switch up to brighten them and down to dim them. When the headlights are turned on, the panel lights setting will default to the intensity that was last set.

Rear-Wall Dome Light

A rear-wall dome light is available on all sleeper cabs. It is located on the rear wall where the wall meets the roof. To turn on the rear-wall fluorescent light, press the dome light switch on either the lower or upper bunk control panels.

Sleeper Dome Light

A sleeper dome light is located on the roof, between the bunk and the cab on sleeper vehicles. The rear cab dome light will activate with the dome lights when a door is opened, then stay on for a short time after both doors are closed. Use the dash-mounted switch or the switch in the sleeper panel to activate the rear cab dome light. See Fig..

Sleeper Reading Lights

Clear reading lights are mounted above the lower bunk in the rear corners of the sleeper. There are two switches in the sleeper control panel for the reading lights. To turn a reading light on, press the upper half of the switch. Press the lower half of the switch to turn it off.

The reading lights can also be activated by pressing the lens.