2019 Silverado LD - Stabilitrak, Trailer Brake, ABS, and Traction Control Service Lights after swapping front brake pads

[Dagwood Designs]

2019 Silverado LD with 81,000 miles. First change of brake pads. I know I should have done rotors too, but I am away from home on work and only had limited tools and a Sunday to mess with it. So I pad slapped the front, and put it back together. Didn't un-plug any sensors, just pads. After I put the wheels back on I started the truck and was greeted by a host of service errors. When I turn the key forward before the truck is even running the service Stabilitrak message comes up, after I dismiss that Service Trailer Brake comes up. To go along with that the ABS and Traction control lights are on now as well. 

 

I tried scanning it, but the scanner didn't come back with any codes. I tried disconnecting the battery for 5 minutes, but that didn't do anything. The brake fluid is full, between Min/Max. The truck has a great brake pedal now, and drives as it did before. I've put 70-80 miles on it since I did the brake pads yesterday. Any thoughts or input is appreciated. Thanks in advance.

[newdude]

When you say "LD" do you have the OLD body truck that looks like a 2018?  Or is it a NEW body 2019?  

 

Either way, the first place to start is with a good code reader that can read all the modules in the truck and see what codes are set.  

Edited August 1, 2022 by newdude

[Dagwood Designs]

1 hour ago, newdude said:

When you say "LD" do you have the OLD body truck that looks like a 2018?  Or is it a NEW body 2019?  

 

Either way, the first place to start is with a good code reader that can read all the modules in the truck and see what codes are set.  

 

Yes it is a 2019 that has the old style like a 2018. I believe the LD stands for Light Duty. It's void of a couple features so I'm told, but I've never wanted for anything. 

 

The two scanners I tried came up with nothing. I'd hate to take it to the dealer to solve this. I have a warranty up to 100k through GM, but something tells me this will be an out of pocket expense. 

 

[newdude]

3 minutes ago, Dagwood Designs said:

 

Yes it is a 2019 that has the old style like a 2018. I believe the LD stands for Light Duty. It's void of a couple features so I'm told, but I've never wanted for anything. 

 

The two scanners I tried came up with nothing. I'd hate to take it to the dealer to solve this. I have a warranty up to 100k through GM, but something tells me this will be an out of pocket expense. 

 

 

 

BlueDriver

 

OBDLink® MX+ - Outstanding Bluetooth-Compatible OBD II Scan Tool

 

Both of these I linked above can read codes in every module on GMs.  Many handhelds will give you powertrain and sometimes ABS, these can read codes for BCM, TCM, HMI, Trailer Brake module, etc.  

Edited August 1, 2022 by newdude

[Dagwood Designs]

8 minutes ago, newdude said:

 

 

BlueDriver

 

OBDLink® MX+ - Outstanding Bluetooth-Compatible OBD II Scan Tool

 

Both of these I linked above can read codes in every module on GMs.  Many handhelds will give you powertrain and sometimes ABS, these can read codes for BCM, TCM, HMI, Trailer Brake module, etc.  

 

Thank you for the info. 

 

[Dagwood Designs]

On 8/1/2022 at 11:01 AM, newdude said:

 

 

BlueDriver

 

OBDLink® MX+ - Outstanding Bluetooth-Compatible OBD II Scan Tool

 

Both of these I linked above can read codes in every module on GMs.  Many handhelds will give you powertrain and sometimes ABS, these can read codes for BCM, TCM, HMI, Trailer Brake module, etc.  

 

Turns out the Blue Driver won't read the ABS data. That's per Blue Driver.

[Dagwood Designs]

Ordered the OBD Link MX+, should arrive tomorrow. I've put 700 miles on the truck this week, and it drives normal. Except for the fact that is clearly does not have ABS. Making me think I messed up an ABS sensor while doing the break pads somehow. 

 

[GMCustomerService]

On 8/1/2022 at 9:13 AM, Dagwood Designs said:

2019 Silverado LD with 81,000 miles. First change of brake pads. I know I should have done rotors too, but I am away from home on work and only had limited tools and a Sunday to mess with it. So I pad slapped the front, and put it back together. Didn't un-plug any sensors, just pads. After I put the wheels back on I started the truck and was greeted by a host of service errors. When I turn the key forward before the truck is even running the service Stabilitrak message comes up, after I dismiss that Service Trailer Brake comes up. To go along with that the ABS and Traction control lights are on now as well. 

 

I tried scanning it, but the scanner didn't come back with any codes. I tried disconnecting the battery for 5 minutes, but that didn't do anything. The brake fluid is full, between Min/Max. The truck has a great brake pedal now, and drives as it did before. I've put 70-80 miles on it since I did the brake pads yesterday. Any thoughts or input is appreciated. Thanks in advance.

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[Dagwood Designs]

Update. Picked up the MX+ scanner and it turned out to be the front right ABS sensor. Swapped it, and went ahead and did rotors since I was back in there. No issues, and all back to normal. Looking at the old sensor, it didn't appear to have any damage. Best I can figure is a piece of rust fell down by the sensor or something like that.