"Service Tire Monitor System" Alert, 2019 Trail Boss, Can see Back Right Tire does not have PSI

[Cody Iddings]

Hi there, looking to get support on how to deal with this alert. I have a 2019 Custom Trail Boss Silverado.

Is it just a bad sensor? How do you replace? Do I need special tools?

[slj2008]

Have your dealership replace it ( should be cover ) NEW valve stem 

[Bikerjon]

I dont think a 2019 with 104,000 miles  will be covered on warranty but yes probably needs new valve stem.

Edited June 16, 2023 by Bikerjon

[Jus Cruisin]

Swing by Discount Tire if you have them. They can swap out the tpms and program it. Probably cheaper than a dealer. 

 

Might think about replacing all of them at the same time. 

Edited June 17, 2023 by Jus Cruisin

[repairman54]

GM sensor batteries last longer than aftermarket ones that tire shops use. Been there on many previous vehicles with TPMS. It's part of the tire valve assy. I bring my own sensors since tire will be needed to be broken down and rebalanced.