Rear brakes fyi 2019

romeactual · September 17, 2023

Figured this was worth sharing. Replaced rear pads/rotors on my 2019 with 70k miles. Far as I know this is the first change. The rear outside rotors looked fine but I was getting some major squeaking. When I disassembled I noticed that the inside pads were completely shot, next to no pad life left and the inside of the rotors were beat. The outside pads had over 50% pad life left, so it seems they wear completely uneven. Also, if you’re going to change pads, be sure to enter brake service mode. You will need a caliper retractor tool as you can’t compress the calipers with pressure.

KA0S · September 17, 2023

I recently did my rear brakes on my 2019 AT4 and also noticed uneven wear. But this was the same case for my fronts that I did last Fall.

You do not require a specific tool for the rear brakes. There are many YouTube videos showing how to put the truck into Service Mode. This will retract the pistons and you can do the brake job like any other brake job without e-brake applications.

romeactual · September 17, 2023

14 minutes ago, KA0S said:

I recently did my rear brakes on my 2019 AT4 and also noticed uneven wear. But this was the same case for my fronts that I did last Fall.

You do not require a specific tool for the rear brakes. There are many YouTube videos showing how to put the truck into Service Mode. This will retract the pistons and you can do the brake job like any other brake job without e-brake applications.

That’s what was strange. I watched the videos and I forsure put the truck into brake service mode. I could hear the electronic brake motors retracting for a while but they didn’t retract. It stood in service mode while I swapped the pads. Can’t see what I missed but would be good to know for next time. Thanks.

newdude · September 17, 2023

Our techs have tried this supposed "service mode". Doesn't work. Nowhere in GM Service Information does it list ANY alternate procedures other than the use of a scan tool to retract and extend the pistons.

Bikerjon · September 17, 2023

45 minutes ago, newdude said:

Our techs have tried this supposed "service mode". Doesn't work. Nowhere in GM Service Information does it list ANY alternate procedures other than the use of a scan tool to retract and extend the pistons.

Hey newdude are there any affordable scan tools that are worth a sh*t that dont cost over $2000.00?

KA0S · September 17, 2023

51 minutes ago, newdude said:

Our techs have tried this supposed "service mode". Doesn't work. Nowhere in GM Service Information does it list ANY alternate procedures other than the use of a scan tool to retract and extend the pistons.

I literally just used it to retract mine a month ago. I suggest your techs do a little more research.

I followed the steps in the video on YouTube to put the vehicle into Service Mode and take it out of Service Mode. The (P) with a wrench under it will flash. What do you suggest that means other than Service Mode???

Of course GM wants you to come in and pay some ridiculous amount of money to hook up a scanning tool and overpay for a brake job….

Use the link below. It’s the exact one I used.

https://youtu.be/xiS7KHmjVtY?si=sexJhBOGIOFWJcrf

KA0S · September 17, 2023

3 minutes ago, Bikerjon said:

Hey newdude are there any affordable scan tools that are worth a sh*t that dont cost over $2000.00?

Of course not……GM wants to make cash from their service department to make up for lack of sales during Covid.

But the method I used worked perfectly.

MANY people have used the same method with no issues.

newdude · September 18, 2023

5 hours ago, KA0S said:

I literally just used it to retract mine a month ago. I suggest your techs do a little more research.

I followed the steps in the video on YouTube to put the vehicle into Service Mode and take it out of Service Mode. The (P) with a wrench under it will flash. What do you suggest that means other than Service Mode???

Of course GM wants you to come in and pay some ridiculous amount of money to hook up a scanning tool and overpay for a brake job….

Use the link below. It’s the exact one I used.

https://youtu.be/xiS7KHmjVtY?si=sexJhBOGIOFWJcrf

Well it appears I've got some egg on my face as the w/o scan tool procedure was not in the manual.

It now is.

Not sure when they added this. It was not there in the 2019-2021 trucks, under 2022 LTD I see it so I'd imagine they edited this for all the years 2019-2024.

Gangly · September 18, 2023

10 hours ago, newdude said:

Well it appears I've got some egg on my face as the w/o scan tool procedure was not in the manual.

It now is.

Not sure when they added this. It was not there in the 2019-2021 trucks, under 2022 LTD I see it so I'd imagine they edited this for all the years 2019-2024.

What's sad, is that GM programmed this feature into the trucks from the get-go, yet waited 5 years to tell the public about it, intentionally allowing the consumer to believe the only way to get the brakes done was through the dealership.

Talk about deception.

gemarsh · September 18, 2023

23 hours ago, Bikerjon said:

Hey newdude are there any affordable scan tools that are worth a sh*t that dont cost over $2000.00?

Just received my Launch scanner today. It will put the brake system into service mode. I see it will reset pad life also.

Amazon has a lightening deal right now for $372.

gemarsh · September 18, 2023

Sorry forgot link...

https://www.amazon.com/gp/aw/d/B0B4MJ5NK6/ref=ya_aw_od_pi?ie=UTF8&psc=1

Timmy J · June 20, 2024

Any help will do. Started rear brakes and got passenger side off before realizing you had to go into service mode. Never knew anything about it. Yup, rookie I guess. I tried to go into service after I had caliper off. Bunch of lights went off in dash. Complete brake failure, trailer brake error or something along that line. Also said something like top speed 43mph. Never could get those off dash. I ended up finish with new calipers rotors pads on rear. Driver rear was seized up completely. Needless to say. Starting bleeding brakes and got to made with whole situation. Had truck towed into shop and they can’t figure out to unlock rear. Fronts still roll. Any help trying unlock would help. I’m sure I’ll get a nice heathy bill from shop if they ever figure out. Thanks

Brocka2203 · March 1

Doing rear brakes on my 2019 Chevy Silverado lt. I got the caliper off and the rotor and when I put the caliper tool on it to spin and push it in… it has too much resistance. I did the turn the truck on and hold the park brake and the light is on solid now with the wrench any help please!!!