Transmission Not Go Into Gear problems of the 2011 GMC Terrain

Transmission will not engage in any gear, has gone completely nonfunctional. I have researched the problem and notice that every complaint is the same regrading the transmission. Same mileage as others and this problem occurs, there needs to be a recall on this matter.

The car did not change gears at the ?proper? time, and then when the brakes were applied or acceleration was ended the car would hard shift to the next gear. It is almost as if the gear was locked into place by the acceleration. Because of this shifting issue, it feels like the car is bucking, which can be a potential safety issue for myself and my family. Issue mainly occurs on slope like conditions in the 25 to 35 mile per hour range, our car is up to date on all recalls per dealer, they were unable to replicate the issue, but replaced the shift stick, this also prevents the car from shifting gears by accident I. E. Without the button pushed, this repair has corrected the manual shifting issue. The automatic shift issue still remainsthe car has less then 50k miles. The issue was 1st discovered in the mountains of PA on the 80 hwy the stickiness was between all gears but mostly 1st/2nd and 3nd/4nd since we are back in the city we can only deal with 1/2 gear on the hwy and this problem persists. When doing basic research on this issue I noticed that others experienced a similar problem in 2011 shortly after the cars release, but a flash to the emc "fixed" the problem. Our dealer says that all recalls and software are up to date. Last occurrence 7/26/16 we dont drive the car much since then.

Started car and shifted from park to reverse. Car did not change into gear. Car was in neutral. Shifted to drive and still no gear change. Shifted to manual drive mode and still did not shift. Turned car off and back on, then gear changes were made. Second time this occurred in about three months.