Accessories and Modifications
Adding non-dealer accessories or making modifications to the vehicle can affect vehicle performance and safety, including such things as airbags, braking, stability, ride and handling, emissions systems, aerodynamics, durability, and electronic systems like antilock brakes, traction control, and stability control. These accessories or modifications could even cause malfunction or damage not covered by the vehicle warranty.
Damage to vehicle components resulting from modifications or the installation or use of non-GM certified parts, including control module or software modifications, is not covered under the terms of the vehicle warranty and may affect remaining warranty coverage for affected parts.
GM Accessories are designed to complement and function with other systems on the vehicle. See your dealer to accessorize the vehicle using genuine GM Accessories installed by a dealer technician.
Also, see Adding Equipment to the Airbag-Equipped Vehicle on page 3‑40.
See also:
Roadside Assistance Program
As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance
program. See Roadside Assistance Program (U.S. and Canada) on page 13‑7 or Roadside
Assistance Program (M ...
Setting the Clock
To set the time and date for the radio with CD, DVD, and USB Port:
1. Turn the ignition key to ACC/ACCESSORY or ON/RUN, then press to turn the radio on.
2. Press to display HR, MIN, MM, DD, YYYY ( ...
Receiving a Call
When an incoming call is received, the audio system mutes and a ring tone is heard in the vehicle.
• Press to answer the call.
• Press to ignore a call. ...





