Exterior Lighting Controls

Exterior light controls are listed here in alphabetical order. See Fig. for exterior light locations.

High-Beam Headlight

Fog Light, or Auxiliary High-Beam Light

Low-Beam Headlight

Marker Light

Turn Signal

Side Turn Signal and Marker Light

Clearance Light

Stop Light, Taillight, and Turn Signal

Back-Up Light

Identification Light

Fig. 1, Exterior Lights

Auxiliary High Beam Lights

Auxiliary high-beam lights may be located in the front bumper. To activate the auxiliary high beam lights, press the upper part of the dash switch. The auxiliary high beam lights will illuminate only when the high-beam headlights are on. They will switch off temporarily when the low-beam headlights are on, until the high beams are on again. Press the lower half of the switch to deactivate it. See Fig..

Fig. 2, Dash-Mounted and Sleeper-Control Light Switches

1. Auxiliary High Beam Light Switch

2. DRL Override Switch

3. Utility Light Switch

4. Cab Foot Well Light Switch

5. Panel Lights Switch

6. Rear Cab Dome Light Switch

7. Rear Cab Dome Light Switch (mounted in sleeper)

8. Sleeper Rear Dome Light Switch, Driver Side

9. Sleeper Rear Dome Light Switch, Passenger Side

10. Sleeper Reading Light Switch, Driver Side

11. Sleeper Reading Light Switch, Passenger Side

Backup Lights

Backup lights activate only when the vehicle is in reverse, and are designed to be used while backing up at night.

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 turn off when the engine falls below 400 rpm, the parking brake is applied, or the headlights are turned on.

Daytime running lights are mandatory for vehicles domiciled in Canada. Vehicles domiciled in any other location may have an optional override switch ( see Fig., ref. 2). This is a momentary switch that enables the driver to deactivate the DRL. Press the upper half of the switch briefly to activate or deactivate the DRL.

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. Pull the headlight switch outward to activate the fog lights.

Hazard Warning Lights

The hazard warning light switch is located on the dash in what is referred to as the main module. See Fig.. The hazard lights can be activated regardless of the ignition switch position.

To activate the hazard lights, press the center of the switch once. The switch will blink at the same rate that the hazard lights flash. Press the switch again to turn them off. All the turn signals on the vehicle and trailer, as well as the turn signal indicators in the ICU, flash simultaneously when the hazard lights are activated.

Hazard Warning Switch

Panel Lights Dimmer Switch

Fig. 3, Main Module

Headlights

The headlight switch is a rotary switch located to the left of the steering column, above the ignition switch. See Fig..

Fog Lights (optional)—Activate by pulling the switch out when the marker lights or headlights are on.

Off

Marker Lights

Headlights

Fig. 4, Headlight Switch

If the Follow Me Home feature is activated, the low-beam headlights will remain on for nine seconds after the vehicle is parked, if the headlights were on prior to engine shutdown. This feature provides temporary lighting in the path of the headlights while walking to a building or other destination. If a vehicle door is opened or closed while this feature is active, the timer will add an additional 10 seconds of lighting. This feature can be temporarily disabled by turning the ignition switch on, or by cycling the headlight switch from the off position to one of the other two positions.

High-Beam Headlights

To activate the high-beam headlights, press the turn signal lever forward towards the windshield while the low-beam headlights are on. Return the turn-signal lever back to its neutral position 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. For vehicles with fog lights, switching on the high beams will switch off the fog lights. The headlight low beams remain on continuously during high-beam operation.

Marker Lights

Turn the headlight switch clockwise to past the off position. See Fig..

Marker Interrupt

The marker interrupt switch, located in the right-hand switch pod of the steering wheel, temporarily flashes the marker lights. See Fig..

Fig. 5, Steering Wheel-Mounted Controls

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 on the left side of the steering column. See Fig..

Wiper Control Dial

High-Beam Icon

Fig. 6, Multifunction Turn Signal Lever

Move the turn signal lever downward to turn the left-turn signal on; move it upward to turn the right-turn signal on. 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.

Turn-Tip Feature

The turn-tip feature is advantageous in lane change situations when the steering wheel does not travel far enough to cancel a conventional turn signal request. Pushing the turn-signal lever halfway to the normal turning position to activate the turn-tip feature. The signal will flash for a few seconds, then cancel. Activation of the turn-tip feature is immediately canceled when a request for the turn signal in the opposite direction is made.

Utility Lights

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