Justinrb70

I have a 2019 Sierra, I got the message with Break Failure, Top Speed of 43 MPH, along with check engine lights and other lights. The GMC service department replaced my master cylinder and control module under my extended warranty. Does anyone know if this will fix the problem? I can't find anything that GM knows how to fix the problem. I'm concerned that I will not have breaks again.

I sent an email with all of the problems with this truck. After putting three transmissions in my 2014 Silverado, the first at 100K miles, the second under warranty, and the third 50K later not under warranty, I'm getting a little tired of new GM trucks.

I have a 2019 Sierra, in March 2020 I got the break recall done. I turned on my truck earlier in the week and it said Brake Failure, Top Speed of 43 MPH, towed it to the dealer, and they reprogramed something. I drove it home and started it an hour later and it said it again, but Brake Failure, Top Speed of 63 MPH. Now they are replacing the master cylinder. I know this is a problem with these trucks, is the master cylinder going to fix the problem? From what I can find GM knows about it, but doesn't know how to fix it. Thanks,