Driver Controls and Instruments 10/26/94 f600363a 10/26/94 f600358a Fig. 3.6, Panel Light Control Lever Fig. 3.7, Road Light Switch, Optional Utility Light Switch, Optional The high-beam headlights are activated by pulling up on the turn signal lever. When the headlights are on high beam, a blue light illuminates between the speed- ometer and tachometer. The ignition switch must be on for the high beams to operate. The utility lights, mounted in the back of the cab, are operated by the utility light switch. See Fig. 3.8 . Headlight Switch and Daytime Running Lights Daytime running lights (DRL) are required in Canada, and optional in the United States.
On vehicles equipped with DRL, turning on the ignition switch and releasing the parking brakes automatically activates the headlight low beams at 86 percent of full voltage. Turning on the regular headlights will override the DRL. While the ve- hicle is being operated, either the headlights or the DRL must be activated. The DRL continue to operate until See Fig. 3.9 . The up position turns on the headlights, marker lights, taillights, clearance lights, and panel lights. The middle position turns on the taillights, marker lights, clearance lights, and panel lights. The down posi- tion turns all of these lights off. 3.6