Automatic Transmission Torque Converter problems of the 2013 GMC Acadia

This vehicle began having a shaking or jumping feeling at 1800 rpms around 85,000 miles. Unable to be diagnosed at outside mechanic. Continued to get worse and began happening at other rpms. Took to dealership after vehicle hit 109,000 miles and diagnosed at torque converter which they refuse to fix because outside warranty. Per my review of other sites, this has been a recurrent and obvious issue with these vehicles and can leave people stranded on the highway as the vehicle can lose power.

Shudder in transmission. Had the transmission rebuilt found out the torque converter failed and almost shattered. Over $5000 fix.

Have vibration when taking off from a stop due to defective torque converter with only 95500 miles on vehicle had to replace and rebuild transmission.

The torque converter went bad within 5 years and had to be replaced due to the engine shutting off when stopped and shuttering when accelerating. The repairs cost me $1500.

While coasting up to a redlight the car engine lurched and stalled shutting off. This left me coasting with no power steering and no power brakes. Very scary. I was very fortunate I didn't hit anything. We have since found out this is due to a gm known problem with the torque converter. Gm has a service bulletin acknowledging this problem. TSB 13120a.