TSB PIT6457A — Buick and Chevrolet Service bulletin
PIT6457A is a service bulletin on file with NHTSA for 3 Buick and Chevrolet models, 2023 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years PIT6457A names
| Vehicle | Model years |
|---|---|
| Buick Enclave | 2023 |
| Chevrolet Bolt EV | 2023 |
| Chevrolet Camaro | 2023 |
Every document filed under PIT6457A
| Document ID | Filed | Type |
|---|---|---|
| PIT6457A | December 12, 2025 | Service bulletin |
Questions buyers ask
What is TSB PIT6457A?
PIT6457A is a service bulletin filed with NHTSA by Buick and Chevrolet, covering 3 Buick and Chevrolet models across the 2023 model years. NHTSA's summary reads: This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.
Which vehicles does PIT6457A cover?
NHTSA's file names Buick Enclave (2023); Chevrolet Bolt EV (2023); Chevrolet Camaro (2023). 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 PIT6457A a recall, and is the repair free?
No. PIT6457A 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 PIT6457A?
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 PIT6457A, 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 PIT6457A. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.