Installation Procedure
WARNING: This page is about a different car, the 2021 GMC Sierra 3500 HD and 2021 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Instrument Panel Center Accessory Function Switch (1) - Install
- Hazard Warning Switch Housing (2) - InstallCAUTION:
- Hazard Warning Switch Housing Bolt (1) - Install and tighten [4x] 2.5N.m (22 lb in)
- Radio Control Assembly (2) - Install - Radio Control Assembly Replacement