Getting to Know Your Sierra
This Quick Reference Guide provides an overview of important features in your GMC Sierra.
Instrument Panel
The instrument panel features various controls, including power mirror and window buttons, exterior/instrument panel/cargo lamp controls, 4WD controls, and more.
Symbols
Familiarize yourself with the symbols on your instrument cluster, including low fuel, traction control, brake system, cruise control, and more.
Keyless Access System
The Keyless Access System allows you to operate doors and tailgate without removing the Remote Keyless Entry transmitter from your pocket or purse.
Keyed Ignition System (If Equipped)
To start the vehicle, rotate the key clockwise to the Start position. To turn off the vehicle, shift to Park and push the key all the way in.
Keyless (Pushbutton) Start
Press and hold the brake pedal and then press the ENGINE START/STOP button to start the engine.
Manual:
Download: 2020 GMC Sierra & Sierra Denali 1500/2500hd/3500hd Owner’s Manual
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