TSB PIP6127 — Chevrolet and GMC Service bulletin
PIP6127 is a service bulletin on file with NHTSA for 4 Chevrolet and GMC models, 2019–2026 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years PIP6127 names
| Vehicle | Model years |
|---|---|
| Chevrolet Colorado | 2023, 2024, 2025, 2026 |
| Chevrolet Silverado 1500 | 2019, 2020, 2021, 2022 |
| GMC Canyon | 2023, 2024, 2025, 2026 |
| GMC Sierra 1500 | 2019, 2020, 2021, 2022 |
Every document filed under PIP6127
| Document ID | Filed | Type |
|---|---|---|
| PIP6127 | July 31, 2026 | Service bulletin |
Questions buyers ask
What is TSB PIP6127?
PIP6127 is a service bulletin filed with NHTSA by Chevrolet and GMC, covering 4 Chevrolet and GMC models across the 2019–2026 model years. NHTSA's summary reads: This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting…
Which vehicles does PIP6127 cover?
NHTSA's file names Chevrolet Colorado (2023–2026); Chevrolet Silverado 1500 (2019–2022); GMC Canyon (2023–2026); GMC Sierra 1500 (2019–2022). 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 PIP6127 a recall, and is the repair free?
No. PIP6127 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 PIP6127?
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 PIP6127, 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 PIP6127. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.