One problem related to transmission shudder has been reported for the 2008 GMC Acadia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 GMC Acadia based on all problems reported for the 2008 Acadia.
Driving the vehicle that had 7 people. I turned onto a street in town and the vehicle started shaking like the transmission was slipping. So I turned to head to the nearest parking lot. Stopped at a stop sign and again the vehicle shook from a take off. Didn't even make it into the driveway before the transmission completely failed in the middle of the busy intersection and we had to push it into the parking lot.