Reading Lamps
These lamps are located on the overhead console. These lamps come on automatically when any door is opened.
For manual operation, press the button next to each lamp to turn it on or off.
See also:
Turn and Lane-Change Signals
An arrow on the instrument panel cluster flashes in the direction of the turn or lane change.
Move the lever all the way up or down to signal a turn.
Raise or lower the lever until the arrow start ...
Online Owner Center
Manage your vehicle (U.S.) at gmc.com. Click on “Owners,” then “Manage My GMC/Owners Login.”
Information and services customized for your specific vehicle — all in one convenient place.
...
Horn
To sound the horn, press the center pad on the steering wheel. ...