TSB PIT4506J — Chevrolet Service bulletin
PIT4506J is a service bulletin on file with NHTSA for 2 Chevrolet models, 2007–2019 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. Tire pressures being set to the "Tire and Loading Label" will ensure the safe handling and ride…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years PIT4506J names
| Vehicle | Model years |
|---|---|
| Chevrolet Silverado 2500 | 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
| Chevrolet Suburban | 2007 |
Every document filed under PIT4506J
| Document ID | Filed | Type |
|---|---|---|
| PIT4506J | February 16, 2026 | Service bulletin |
Questions buyers ask
What is TSB PIT4506J?
PIT4506J is a service bulletin filed with NHTSA by Chevrolet, covering 2 Chevrolet models across the 2007–2019 model years. NHTSA's summary reads: This Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. Tire pressures being set to the "Tire and Loading Label" will ensure the safe handling and ride…
Which vehicles does PIT4506J cover?
NHTSA's file names Chevrolet Silverado 2500 (2007–2019); Chevrolet Suburban (2007). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB PIT4506J a recall, and is the repair free?
No. PIT4506J is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of PIT4506J?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under PIT4506J, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under PIT4506J. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.