Vibrations occur at slow speeds, at constant highway speeds, when slightly accelerating, when braking. Sometimes it can be felt in the steering wheel, sometimes not. Passengers can feel it. Have had it looked at twice, 1st guy said take it to the dealer. He felt it but couldn't find any hardware issues so thought it may be a transmission download issue. Took it to a Chevy dealer as no GMC dealer in my town, they said there was nothing wrong, I have to live with it. So I'm supposed to let it vibrate apart?? There is something wrong! Have you heard of anything like this? Thanks, Mike Cooley
What makes this problem better or worse?
nothing
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