2011 Chevrolet Impala Q&A

2011 Chevrolet Impala Question: Transmission keeps jumping out of gear.

the car drove fine last night, when I left for work this morning it was 5 degrees below zero, upon putting it in to gear it pulls hard until it starts moving and then it goes into neutral for all gears even reverse until I key off , let the ECM reset and restart. then the situation happens again, also noted a noticeable whine this morning -
Answer 1
Did you let it warm up or just start and drive. -
Comment 1
Yes I had it was at operating temperature before I left home -
Comment 2
Then it needs scanned. -
Answer 2
get a free diag and est from aamco -