Cargo Lamp; Inside Day/Night Rearview Mirror - GMC SIERRA CK2 1999 Owner's Manual

Cargo Lamp

The dome lamp switch must be on or one of the doors
open for the cargo lamp to work.
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Press the ribbed top part of
the switch to turn the cargo
lamp on. Press the bottom
of the switch to turn it off.
Mirrors

Inside Day/Night Rearview Mirror

Pull the tab under the mirror rearward to reduce glare
from headlamps behind you after dark. Push the tab
forward for normal daytime operation.
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