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

[sgtshultz777]

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

 

[MelsRegal]

What codes show for the various systems?

 

[Snoopydad007]

I have a 2013 Regal.. similar situation last year turned out to be throttle body. $150 parts and labor to fix. Plastic gears inside were broken.

 

[sgtshultz777]

I have a 2013 Regal.. similar situation last year turned out to be throttle body. $150 parts and labor to fix. Plastic gears inside were broken.

thanks. what symptoms did you have exactly please?

 

[2007LucerneCXL]

Code(s)? Otherwise it guessing and it could be any number of problems.

verano stalling randomly w/ service power steering light on

I recently purchased a 2013 buick verano. me and the wife love the car but after about a month or 2 of having the car we started having issues where the car would stall out at randoms times. and once the vehicle has stalled out it will throw a message up on the message center saying service...

buickforums.com

 

[Snoopydad007]

thanks. what symptoms did you have exactly please?

Loud chimes from dashboard, message flashes "service stabilitrac" , then "service ABS", then notice that engine will reduce power. Barely made it off the road to a nearby garage. Mechanic diagnosed it within minutes, repair was done within a couple hours.
I had another incident with chimes, "service stabilitrac" and Service ABS" notice, but car did not go into limp mode. This one was wheel bearing. Apparently the ABS system works by reading small magnets mounted in the wheel bearing. This incident cost about $350.

 

[fowlerh1975]

repost

 

[fowlerh1975]

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

My Verano has the same warning lights, but also has the ‘service parking assist’, check engine light comes on and is doing the same with limp mode and won’t go over 45 mph at 3k rpm but eventually shifts after driving about 5 miles. I know it’s going to shift when the doors automatically lock. Scanner gave a code indicating something wrong with the connection to the TCM but I don’t have enough confidence to go that route yet. Please repost if you find anything and I’ll do the same.

 

[MelsRegal]

What is the code?

 

[Judyallman]

My Verano has the same warning lights, but also has the ‘service parking assist’, check engine light comes on and is doing the same with limp mode and won’t go over 45 mph at 3k rpm but eventually shifts after driving about 5 miles. I know it’s going to shift when the doors automatically lock. Scanner gave a code indicating something wrong with the connection to the TCM but I don’t have enough confidence to go that route yet. Please repost if you find anything and I’ll do the same.

Having the same type of symptoms. Did you ever find a fix?

 

[Judyallman]

My Verano has the same warning lights, but also has the ‘service parking assist’, check engine light comes on and is doing the same with limp mode and won’t go over 45 mph at 3k rpm but eventually shifts after driving about 5 miles. I know it’s going to shift when the doors automatically lock. Scanner gave a code indicating something wrong with the connection to the TCM but I don’t have enough confidence to go that route yet. Please repost if you find anything and I’ll do the same.

Having the same type of symptoms. Did you ever find a fix?

 

[MelsRegal]

Having the same type of symptoms. Did you ever find a fix?

What code do you have?

 

[Judyallman]

What code do you have?

Says lost communication with transmission control module. Lights come on saying service power steering and service stabili trak

 

[Judyallman]

What code do you have?

Also goes into a limp mode and won't go over 30 mph. Doors lock and unlock continually.

 

[MelsRegal]

Says lost communication with transmission control module. Lights come on saying service power steering and service stabili trak

What is the exact code?

 

[Judyallman]

What is the exact code?

U0101

 

[MelsRegal]

Look at the diagnostic and repair procedure in this link

U0101 Lost Communication with Transmission Control Module (TCM)

 

[Judyallman]

Look at the diagnostic and repair procedure in this link

U0101 Lost Communication with Transmission Control Module (TCM)

Thanks

 

[G-816935]

I really thank you guys for this info. It was driving me crazy, now to check everything they say to check.
My 2014 Buick Verano was doing all the same things and I had it scanned over and over again, even cleared the codes to only have them come back again after driving the car for 30 miles. It would jerk hard and that's when all the warning signs would pop up on the message center. So I'm about to go thru all the info I've retrieved from you guys and pray it works out.

 

[Snoopydad007]

thanks. what symptoms did you have exactly please?

car went into limp mode, after chimes from dashboard. Similar message flashed, 'service stabilitrac", etc. Car would barely move forward. luckily it happened within a block of a trusted garage. He diagnosed the problem and had the part replaced within an hour of taking the car in.