The truck was purchased with 113,000 miles on it and no apparent problems when bought. after about 3 months of ownership, the "service airbag" message appeared intermittently for the next few weeks. after that time, the message was constant on. took the truck to my local dealer who charged to "repair" it. message came back after about a week of driving. message now reappears at random intervals. don't know if the problem is with the airbag sensors, the control unit, or any peripheral switches. dealer is incompetent and do not trust to fix the problem. already paid good money to have this problem repaired and am not going to continue to pay for incompetence. message appears when vehicle is in motion and when vehicle is started at random. message will sometimes disappear for weeks at a time, then, reappear at random.