GMC Sierra Owners Manual
Setting Cruise Control
If the cruise button is on when not in use, it could get bumped and go into cruise when not desired. Keep the cruise control switch off when cruise is not being used.
The cruise control light on the instrument panel cluster will come on after the cruise control has been set to the desired speed.
1. Press .
2. Get up to the desired speed.
3. Press the SET− button located on the steering wheel and release it.
4. Take your foot off the accelerator.