TSB PIT6425C — Buick, Cadillac, Chevrolet and GMC Service bulletin
PIT6425C is a service bulletin on file with NHTSA for 25 Buick, Cadillac, Chevrolet and GMC models, 2019–2024 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 to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years PIT6425C names
| Vehicle | Model years |
|---|---|
| Buick Enclave | 2019, 2020, 2021, 2022, 2023, 2024 |
| Buick LaCrosse | 2019 |
| Cadillac CTS | 2019 |
| Cadillac Escalade | 2019, 2020 |
| Chevrolet Blazer | 2019, 2020, 2021, 2022, 2023 |
| Chevrolet Bolt EV | 2019, 2020, 2021, 2022, 2023 |
| Chevrolet Camaro | 2019, 2020, 2021, 2022, 2023, 2024 |
| Chevrolet Colorado | 2019, 2020, 2021, 2022 |
| Chevrolet Corvette | 2019, 2020, 2021, 2022 |
| Chevrolet Cruze | 2019 |
| Chevrolet Equinox | 2019, 2020, 2021, 2022 |
| Chevrolet Impala | 2019, 2020 |
| Chevrolet Malibu | 2019, 2020, 2021, 2022, 2023 |
| Chevrolet Silverado 2500 | 2019 |
| Chevrolet Sonic | 2019, 2020 |
| Chevrolet Suburban | 2019, 2020 |
| Chevrolet Tahoe | 2019, 2020 |
| Chevrolet Trailblazer | 2021, 2022 |
| Chevrolet Traverse | 2019, 2020, 2021, 2022, 2023 |
| Chevrolet Trax | 2019, 2020, 2021, 2022 |
| Chevrolet Volt | 2019 |
| GMC Acadia | 2019, 2020, 2021, 2022, 2023 |
| GMC Canyon | 2019, 2020, 2021, 2022 |
| GMC Terrain | 2019, 2020, 2021, 2022 |
| GMC Yukon | 2019, 2020 |
Every document filed under PIT6425C
| Document ID | Filed | Type |
|---|---|---|
| PIT6425C | January 16, 2026 | Service bulletin |
Questions buyers ask
What is TSB PIT6425C?
PIT6425C is a service bulletin filed with NHTSA by Buick, Cadillac, Chevrolet and GMC, covering 25 Buick, Cadillac, Chevrolet and GMC models across the 2019–2024 model years. NHTSA's summary reads: This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
Which vehicles does PIT6425C cover?
NHTSA's file names Buick Enclave (2019–2024); Buick LaCrosse (2019); Cadillac CTS (2019); Cadillac Escalade (2019–2020); Chevrolet Blazer (2019–2023); Chevrolet Bolt EV (2019–2023); Chevrolet Camaro (2019–2024); Chevrolet Colorado (2019–2022); Chevrolet Corvette (2019–2022); Chevrolet Cruze (2019), and 15 more vehicles listed on this page. 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 PIT6425C a recall, and is the repair free?
No. PIT6425C 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 PIT6425C?
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 PIT6425C, 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 PIT6425C. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.