For vehicles with a rear lamp button, it is located on the lower left side of the instrument panel. See Instrument Panel Overview .

When pressed in, an indicator light inside the button comes on.

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