Interior Lighting; Dome Lamps; Control - GMC Sierra Owner's Manual

146 Lighting
If the vehicle is in P (Park), R (Reverse),
or N (Neutral) the Cargo Lamp Switch causes
the lights to cycle through the following
states for each button press:
- Initial Press:
- CHMSL/Cargo Bed Lights - On
- Cargo Mirror Lights - On
- Cargo Switch Indicator (if equipped) - On
- Next Press: (if with in 5 seconds of the
previous button press):
- CHMSL/Cargo Bed Lights - On
- Cargo Mirror Lights - Off
- Cargo Switch Indicator (if equipped) - On
- Next Press:
- CHMSL/Cargo Bed Lights - Off
- Cargo Mirror Lights - Off
- Cargo Switch Indicator (if equipped) - Off
Become familiar with and follow all state
and local laws that apply to cargo lamp
operation.

Interior Lighting

Instrument Panel Illumination

Control

This feature adjusts the brightness of all
illuminated controls. The instrument panel
illumination control is next to the exterior
lamp control.
: Press + to brighten or
dim the lights.
This feature is functional at night, or when
the headlamps or parking lamps are ON.

Dome Lamps

The dome lamp controls are in the overhead
console.
To operate, press the following buttons:
OFF : Press to turn off the dome
lamps when a door is open. An indicator
light on the button will turn on when the
dome lamp override is activated. Press
to
OFF again to deactivate this feature and the
indicator light will turn off. The dome lamps
will come on when any door is opened,
on the remote key is pressed, or when the
ignition is switched off.