WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Illustrations
Tool Number/Description
Courtesy of GENERAL MOTORS COMPANY
CH 28662 J 28662 Brake Pedal Effort Gauge
Courtesy of GENERAL MOTORS COMPANY
CH 29532-A J 29532-A Pressure Brake Bleeder, or equivalent