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2020 GMC Acadia Owners Manual - Interior Lighting



Interior Lighting

Instrument Panel Illumination Control


This feature adjusts the brightness of the steering wheel controls and instrument panel lights.

Move the thumbwheel up or down to brighten or dim the lights.

Courtesy Lamps


The courtesy lamps come on when any door is opened, K on the RKE transmitter is pressed, or when the ignition is switched off

Dome Lamps


The dome lamp is in the overhead console.

To operate, press the following buttons:

OFF : Press to turn off the dome lamps when any door is opened, K on the RKE transmitter is pressed, or when the ignition is switched off. An indicator light on the button will turn on when the dome lamp override is activated. Press j OFF again to deactivate this feature and the indicator light will turn off. The dome lamps will come on when any door is opened, K on the RKE transmitter is pressed, or when the ignition is switched off.

ON/OFF : Press to turn the dome lamps on manually.

Reading Lamps


There are front and rear reading lamps on the overhead console and in the headliner. These lamps come on when any door is opened, K on the RKE transmitter is pressed, or when the ignition is switched off.

To operate, the ignition must be on, or in ACC/ACCESSORY, or using Retained Accessory Power (RAP).

Front Reading Lamps

Press the lamp lenses to turn the front reading lamps on or off.

Rear Reading Lamps

Press the buttons to turn the rear passenger reading lamps on or off.


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