If your vehicle has this feature, the knob is located on the lower right of the instrument panel.

Turn the knob counterclockwise to brighten the instrument panel lights or clockwise to dim them.

The dome lamp switch can be set to three different positions: DOOR, OFF, and ON.

When the switch is set to DOOR, the dome lamp will come on only when the driver's door is open. If the switch is set in the OFF position, the dome lamp will not illuminate, even when the door is opened. The dome lamp will remain on whether or not the door is open if the switch is placed in the ON position.

Your vehicle may have a rear lamp button which is located on the lower left side of the instrument panel. When pressed in, an indicator light inside the button will illuminate.

Because your truck may be finished in a variety of different ways by a number of companies, the function of this switch depends on how your vehicle was finished after it left the factory. Refer to the other manuals that came with your vehicle to learn more about this switch, or see your dealer for more information.