2014 Verano - Lost Communication with TCM - Service power steering, service stabilitrak, transmission limp mode

[BVerano]

just started the car a few minutes ago and seen a surge in battery voltage up to 15 volts . now battery is sitting at 14.5 volts with the tcm losing connection

Just wanted to chime in and say 14.9 is normal.. at least in my situation

 

[Ihatebuickveranos]

I was having the same trouble with my 2014 Buick Verano that some of you were posting where the engine would stall, jump our of gear, give computer readouts of service power steering and service Stabile bar. On my car the door locks would go crazy off and on over and over. I notice that someone said they had the throttle body replaced and it had helped. Not knowing where the throttle body was I went to you tube and found out that cleaning the throttle body would solve the problem. I followed that instructions in the video and my problems have gone away. Here is the link for of the video.

. Hope it works for you.

Did this work for you by cleaning the throttle body?

 

[G-371642]

I have a 2014 Verano. Multiple symptoms - service steering, service stabilitrak, limp mode. I have replaced negative cable. I have replaced battery. The dealership can't find the problem. HELP please. I've searched the forum and while there are many threads, I have yet to see a reported and confirmed fix.

anyone? please.

Thanks

Scott

Same exact symptoms, 2014 Buick verano