Traction activation engages for no reason usually when starting from a stopped position and vehicle reaches approximately 15 mph. The gas pedal locks up briefly and engine appears to want to die, within a few seconds the activation light goes back out and truck if fine. If I drive an hour this problem occurs 3 times. My mechanic advised no recalls for this problem from GMC. The car was checked twice within a week after the check engine light kept coming on, but when tested with the diagnostic testing equipment I was advised it's a censor problem, but the denali has 4 censors and the tests can't detect which censor is bad until it goes out completely. I will contact my local GMC dealer but, from checking several complaints from persons experiencing similar problems I am very concerned about being taken for a ride. Now I have to worry about being involved in an accident while I'm waiting for this censor to totally go out. GMC knows people are having this problem with traction censors and should do the honorable thing by recalling these vehicles before a serious accident occurs. The average citizen who purchases a vehicle in good faith shouldn't have to pay hundreds and or thousands of dollars while mechanics keep charging you for tests that aren't solving the problem. GMC should replace all the censors since their tests can't detect which one is bad.

- Mokena, IL, USA