Hey all, I just purchased a 2013 XC60 T6 that has 126,000 miles. Beautiful car and it drives great. There is just one flaw I have noticed.

A few days ago when coming into my driveway, I pulled in and put the car in reverse, backed up, and when I put the car into drive I heard a little buzz and the car lurched forward. It did this everytime you’d shift into drive. Only into drive.

Fast foward to today. After drying the car off I backed out of the space and when I put it into drive it did the thing again. It would do it if you went back to reverse then drive again. This time I kept the car on and proceeded to drive home. It shifted fine and drove fine. I pulled over and put the car into park, then into drive and it shifted normally again.

Is this a software thing or perhaps should I try a drain-and-fill on the tranny fluid? Should I try and have my friend use his scanner to clear the tranny adaptations?

Help appreciated, thanks.