TSB PIP6128 — Chevrolet and GMC Service bulletin
PIP6128 is a service bulletin on file with NHTSA for 2 Chevrolet and GMC models, 2025–2026 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This Preliminary information communicates the potential for shudder and all cylinder misfire concerns on RPO LSD
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years PIP6128 names
| Vehicle | Model years |
|---|---|
| Chevrolet Equinox | 2025, 2026 |
| GMC Terrain | 2025, 2026 |
Every document filed under PIP6128
| Document ID | Filed | Type |
|---|---|---|
| PIP6128 | August 10, 2026 | Service bulletin |
Questions buyers ask
What is TSB PIP6128?
PIP6128 is a service bulletin filed with NHTSA by Chevrolet and GMC, covering 2 Chevrolet and GMC models across the 2025–2026 model years. NHTSA's summary reads: This Preliminary information communicates the potential for shudder and all cylinder misfire concerns on RPO LSD
Which vehicles does PIP6128 cover?
NHTSA's file names Chevrolet Equinox (2025–2026); GMC Terrain (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 PIP6128 a recall, and is the repair free?
No. PIP6128 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 PIP6128?
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 PIP6128, 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 PIP6128. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.