Electrical System
See also:
Safety
GM is aggressive in promoting the benefits of OnStar 8.0. New-truck buyers
get a one-year subscription to the Safe and Sound Plan, after which owners can
subscribe annually. If an airbag deploys, ...
Windshield and Wiper Blades
Clean the outside of the windshield with glass cleaner.
Clean rubber blades using a lint-free cloth or paper towel soaked with windshield
washer fluid or a mild detergent. Wash the windshield thoro ...
Noise Control System
The following information relates to compliance with federal noise emission standards for vehicles with a Gross Vehicle Weight Rating (GVWR) of more than 4 536 kg (10,000 lbs). The noise control syste ...





