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.
Vehicle Stability Control System Switch(1) - Install
Hazard Warning Switch Housing (2) - Install
- 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
CAUTION: