GMC Sierra
Sierra is a 4-door, up to 6-passenger full size pickup.
See also:
Engine Exhaust
WARNING
Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. Exposure to CO can cause unconsciousness and even death.
Exhaust may enter the vehicle if:
• The vehicle idle ...
Conditions in Which Remote Start Will Not Work
The remote vehicle start feature will not operate if:
○ The key is in the ignition.
○ The hood or doors are not closed.
○ The hazard warning flashers are on.
○ There is an ...
Brake Assist
This vehicle has a brake assist feature designed to assist the driver in stopping or decreasing vehicle speed in emergency driving conditions. This feature uses the stability system hydraulic brake co ...





