Starting the Vehicle
1. Press and release 
on the Remote
Keyless Entry transmitter.
2. Press and hold 
for about two
seconds. The turn signal lamps will briefly flash to confirm the vehicle has been
started. The parking lamps will turn on and remain on as long as the engine is running.
The vehicle's doors will be locked.
3. The key must be inserted and turned to ON/RUN before driving.
The engine will shut off after 10 minutes unless a time extension is done or the key is inserted and turned to ON/RUN.
See also:
Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehic ...
Programming Universal Home Remote — Rolling Code
For questions or help programming the Universal Home Remote System, call 1-866-572-2728 or go to www.learcar2u.com.
Most garage door openers sold after 1996 are Rolling Code units.
Programming a gar ...
Roadside Assistance Program
U.S.: 1-888-881-3302
TTY Users (U.S.): 1-888-889-2438
Canada: 1-800-268-6800
Mexico: 01-800-466-0801
As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance program.
...