See also:

Dome Lamp Override
The dome lamp override button is next to the exterior lamps control. DOME OFF: Press the top of the button in and the dome lamps remain off when a door is opened. An indicator light on the button ...

Navigation
OnStar navigation requires the Directions and Connections service plan. Push to receive directions or have them sent to the vehicle navigation screen. Destinations can also be forwarded to the v ...

Interior
The Sierra showcases two different interior designs. Work Truck and SLE models are more utility-minded, with large controls and door handles that can be operated while wearing gloves. The SLT offe ...