Service bulletin PIT6522
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11033987 |
| Published by NHTSA | 2026-06-18 |
| Manufacturer's number | PIT6522 |
| Manufacturer's date | 2026-06-10 |
| NHTSA component | UNKNOWN OR OTHER |
NHTSA's summary
This PI advises dealers that if the K160 Brake System Control Module sets DTC P0606 along with P0562 and/or P25A2, additional diagnostic aids should be followed before replacing parts. The PI provides guidance to inspect for low voltage conditions, wiring, terminal concerns, and module communication issues that may cause false or intermittent EBCM DTCs.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Trouble codes named
P0562, P0606, P25A2
| CADILLAC ESCALADE | 2021, 2022, 2023, 2024, 2025, 2026 |
|---|---|
| CADILLAC ESCALADE ESV | 2021, 2022, 2023, 2024, 2025, 2026 |
| CHEVROLET COLORADO | 2023, 2024, 2025, 2026 |
| CHEVROLET SILVERADO 1500 | 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 2500 | 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 3500 | 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SUBURBAN | 2024 |
| CHEVROLET TAHOE | 2021, 2022, 2023, 2024, 2025 |
| GMC ACADIA | 2024, 2025 |
| GMC CANYON | 2023, 2024, 2025, 2026 |
| GMC SIERRA 1500 | 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 3500 | 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON | 2021, 2022, 2023, 2024, 2025, 2026 |
| GMC YUKON XL | 2021, 2022, 2023, 2024, 2025 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.