Brake System Failure; Service Trailer Brake, ESC...

[SilveradoRST]

I started my truck this morning, no problems.  Drove to work, parked.  Start it up again to swing by another site, parked.  Started up for the 3rd time for the day and boom.  I get Brake System Failure, Service Trailer Brake, and Service ESC.  I shut off the truck and started it again after a few minutes and this time no messages but Check Engine is on now.  Gave my dealership a call, I was 10 mins away.  They agreed to take a look and said the battery was low which then triggered the computer throw up those Service Brake messages.   I didn’t leave any light on, no phone left in my truck charging, nothing.  I had the Seat Belt and Brake recalls done last month.  I know there is a recent recall regarding an intermittent electrical connection between the B+ battery cable and the alternator.  So far this recall isn’t popping up for my truck.  Don’t know if it is because my VIN is not applicable or it just didn’t come up to Canada yet?  Anyone in Canada get this last recall done already?   .  

[JRDUCKS]

This happened to me the other day it has to do with the repgrogramming after the brake recall. There is a lengthy thread going in the “trouble shooting” forum right now if I wasn’t on Tapatalk I’d include the link to...

 

"Brake system failure" "Service ESC" LEMON?

https://r.tapatalk.com/shareLink/topic?share_fid=33003&share_tid=233117&url=https://www.gm-trucks.com/forums/index.php?/topic/233117-%22Brake-system-failure%22-%22Service-ESC%22-LEMON%3F&share_type=t&link_source=app

 

Hopefully that link works?

 

Sent from my iPhone using Tapatalk

 

[SilveradoRST]

Thank-you!!  Going to read it now.  Sorry for posting the same issue.  

 

Mods can delete this if you’d like.  

 

Thanks again for the link!

 

[MrNotSoNiceGuy]

I'm currently at the dealership and they told me if you're starting your truck from the OnStar app to stop because they need to update the trucks system to catch up with the technology of the app.

 

I got the recalls taken care of right after Christmas so I knew it should not have been that.

 

Same thing happened to me today because I was out of range and it was cold this morning. 

 

So just a heads up, they're still figuring out the technology on the T1s so refrain from starting your trucks from the app.

[Dpach]

Our shop is telling us it has to do with battery voltage. Something about starting the truck with the phone app or the remote start on the keyfob. Apparently it is drawing too much power and if your battery is low (perhaps from repeated starting with short trips and little recharge time), when you push the button to fire up the accessories/truck when you get in, the lower voltage is tripping something in the computer when it does its system check.

 

We were told they have a fix now for 20's and our shop is now reprogramming them. GM hopes to have an updated programming for 19's within a week or two.