One problem related to air bag not deploy has been reported for the 2006 GMC Sierra 3500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 GMC Sierra 3500 based on all problems reported for the 2006 Sierra 3500.
Involved in accident, vehicle driven into rear of pick-up and u-haul trailer on highway 50 canyon city,CO ,left front side of GMC 3500 destroyed along with hood area and the airbags did not deploy. Driver had to be cut out of Gmc3500. GMC totaled driver suffered broken neck. Photos obtained but not able to upload.