TSB PIC6602X — Chevrolet and GMC Service bulletin
PIC6602X is a service bulletin on file with NHTSA for 6 Chevrolet and GMC models, 2022–2026 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 to dealers steps to follow to obtain an IOK radio.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years PIC6602X names
| Vehicle | Model years |
|---|---|
| Chevrolet Corvette | 2024, 2025 |
| Chevrolet Silverado 2500 | 2024, 2025, 2026 |
| Chevrolet Suburban | 2022, 2023, 2024 |
| Chevrolet Tahoe | 2022, 2023, 2024 |
| GMC Sierra 1500 | 2022 |
| GMC Yukon | 2022, 2023, 2024 |
Every document filed under PIC6602X
| Document ID | Filed | Type |
|---|---|---|
| PIC6602X | May 19, 2026 | Service bulletin |
Questions buyers ask
What is TSB PIC6602X?
PIC6602X is a service bulletin filed with NHTSA by Chevrolet and GMC, covering 6 Chevrolet and GMC models across the 2022–2026 model years. NHTSA's summary reads: This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
Which vehicles does PIC6602X cover?
NHTSA's file names Chevrolet Corvette (2024–2025); Chevrolet Silverado 2500 (2024–2026); Chevrolet Suburban (2022–2024); Chevrolet Tahoe (2022–2024); GMC Sierra 1500 (2022); 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 PIC6602X a recall, and is the repair free?
No. PIC6602X 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 PIC6602X?
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 PIC6602X, 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 PIC6602X. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.