TSB PIT6476B — Cadillac and GMC Service bulletin
PIT6476B is a service bulletin on file with NHTSA for 2 Cadillac and GMC models, 2022–2024 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This preliminary information communicates an issue with a Service Brake system message and DTC C055F due to a low battery condition. Dealer are to inspect the battery, battery connections and for any aftermarket devices.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years PIT6476B names
Every document filed under PIT6476B
| Document ID | Filed | Type |
|---|---|---|
| PIT6476B | May 14, 2026 | Service bulletin |
Questions buyers ask
What is TSB PIT6476B?
PIT6476B is a service bulletin filed with NHTSA by Cadillac and GMC, covering 2 Cadillac and GMC models across the 2022–2024 model years. NHTSA's summary reads: This preliminary information communicates an issue with a Service Brake system message and DTC C055F due to a low battery condition. Dealer are to inspect the battery, battery connections and for any aftermarket devices.
Which vehicles does PIT6476B cover?
NHTSA's file names Cadillac Escalade (2022–2024); GMC Yukon (2022–2024). 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 PIT6476B a recall, and is the repair free?
No. PIT6476B 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 PIT6476B?
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 PIT6476B, 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 PIT6476B. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.