One problem related to air bag not deploy has been reported for the 2008 Chevrolet 3500. The most recently reported issues are listed below.
Purchased new 2008 Chevrolet silverado 3500. Vehicle was involved in head on collision resulting in the vehicle being totaled by insurance company. The air bag did not deploy and onstar which is standard in the vehicle did not respond. We filed a formal complaint with general motors regarding the air bag and onstar failure. General motors product allegation department ordered an event data recording of the crash with the documented cdr file information "event recovered" stating "none" therefore inconclusive. . Our safety concern was ignored with the investigation by general motors being 'closed" via letter dated August 26, 2009. No satisfactory reason was given as to why the airbag failed during a crash that resulted in a total loss vehicle. We own a trucking company with several of the exact same type of vehicles owned and several personal general motors vehicles and will pursue the safety issue of the airbag and onstar failure to the fullest extent.