TSB PIT6520 — Buick, Cadillac, Chevrolet and GMC Service bulletin
PIT6520 is a service bulletin on file with NHTSA for 7 Buick, Cadillac, Chevrolet and GMC models, 2024–2026 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 to inform technicians and customers that the HUD will not retain its current settings. No parts should be replaced.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years PIT6520 names
| Vehicle | Model years |
|---|---|
| Buick Enclave | 2025, 2026 |
| Cadillac Escalade | 2025, 2026 |
| Chevrolet Suburban | 2025, 2026 |
| Chevrolet Tahoe | 2025, 2026 |
| Chevrolet Traverse | 2024, 2025, 2026 |
| GMC Acadia | 2024, 2025, 2026 |
| GMC Yukon | 2025, 2026 |
Every document filed under PIT6520
| Document ID | Filed | Type |
|---|---|---|
| PIT6520 | June 18, 2026 | Service bulletin |
Questions buyers ask
What is TSB PIT6520?
PIT6520 is a service bulletin filed with NHTSA by Buick, Cadillac, Chevrolet and GMC, covering 7 Buick, Cadillac, Chevrolet and GMC models across the 2024–2026 model years. NHTSA's summary reads: This preliminary information is to inform technicians and customers that the HUD will not retain its current settings. No parts should be replaced.
Which vehicles does PIT6520 cover?
NHTSA's file names Buick Enclave (2025–2026); Cadillac Escalade (2025–2026); Chevrolet Suburban (2025–2026); Chevrolet Tahoe (2025–2026); Chevrolet Traverse (2024–2026); GMC Acadia (2024–2026); GMC Yukon (2025–2026). 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 PIT6520 a recall, and is the repair free?
No. PIT6520 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 PIT6520?
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 PIT6520, 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 PIT6520. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.