Load test the battery. It might have a couple weak cells or an internal shorting issue that will cause all kinds of issues with the electronics. Could also be a ground issue...
This isnt the 4cyl with e-assist i believe.

 

Exact same thing with mine. Any suggestions on what’s causing it?

 

did you ever find a fix?

 

Same thing with my 2014 4cyl
No one can figure out what’s wrong with it

 

Same thing with my 2014 4cyl
No one can figure out what’s wrong with it

U0101 is a generic powertrain code, which means it has the same definition for the Chevy Impala as it would any other vehicle. It means that your Impala’s TCM (Transmission Control Module) can’t communicate with the rest of the vehicle, usually due to a bad wiring harness or an issue with the TCM itself.

U0101 is often misdiagnosed as a bad TCM before the wiring harness has been inspected.

 

Exact same thing with mine. Any suggestions on what’s causing it?

My 2014 Impala LT started doing this. I started trying to self diagnose it and started with the assumption it was an electrical issue not mechanical. I reseated all of the connections (ie ecu,tcm) making sure there were no bent pins. Restarted my car and it was fixed. Next time my car threw the "stablitrack" U0101 code I only did this to the main connection on the front of the transmission. It is one of those slide style wire connectors. It fixed it. Turns out the wire harness isn't very strong and has enough room to let it slide out making it "lose" connection throwing the car into limp mode.

 

Has anyone else had luck doing this just wondering experiencing these issues amongst other codes

 

Same with mine. It's now passed the unsafe to drive stage. Did anyone confirm the wiring harness is the issue for this particular problem? We are going broke throwing money at this thing.

 

Same with mine any update man trying to fix it my self the thing is mine the stability light come on and it won’t show the parking light and fleas everything yu said but if I leave it on long time it go away and engages and I’m able to put in in drive light come on and able to drive so it will go out if I leave the car runing for 1 hour

 

Also change the battery to a new one it stop doin it for a lil bit then but now since I change the battery is it jerks when I start it but the problem won’t happen and it lags wen driving but it doeas shift

 

14 Impala LTZ V6
i have had this issue going on and off non stop for 2 weeks. I, also thought it was my battery and bought a nice AGM battery. When i did sat down and diagnosed the issue, i found Harness connector X1 being loose and not the battery as most of the time, this issue is fixed. Electricity does put out a little bit of heat and now that this year the summers got hot, this U101 has become more and more common. The X1 connector carry power pins to TCM and ground as well. When the issue happened, i quickly pushed the harness connector (carefully but with force),towards the transmission, push the connector in more and you can hear the solenoids activate and door locks as well as the BCM now knows what position the transmission is in. I cleaned my contacts and added little dielectric grease. **Note how the harness is routed as the transmission hoses and power wire that leads to fuse box/battery is in the way and actually pushes down on the connector, adding stress to the connection.( imitating old ignition keys with janitor rings hanging for dear life on the ignition lock cylinder lol) i used the harness and some beauty ziptie to carefully route x1 harness. it's been 1 month and no issues yet.

*good luck *