I have a 2014 GMC Acadia with 26,850 miles on it. Since I purchased the vehicle I have had several issues. All of the exterior lights had to be replaced due to condensation inside the lights, oil leak, air conditioner sometimes will not work, air bag malfunction light has been coming on and issues with the transmission jerking. I have taken the vehicle to the dealership numerous times and while they have corrected most of the problems the transmission issue remains unresolved. After slowing the vehicle down when I go to accelerate again the engine revs up and then jerks very hard. It's like the transmission doesn't know what gear to shift to and hesitates and when it finally selects a gear it jerks the hell out of the car. It doesn't do it every time but lately it's been jerking so hard that my 4 kids even notice it and ask if we hit something. I've taken it in 3 times but I always get the same response. No problems found. I was just at the dealership yesterday having the air bag serviced and had them check the transmission again. They said they drove it around and didn't notice anything. They only drove it two miles so I'm not surprised they didn't notice anything. Anyone else having issues with their Acadia doing this?