Service bulletin PIT6394B
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 | 11022074 |
| Published by NHTSA | 2025-08-22 |
| Manufacturer's number | PIT6394B |
| Manufacturer's date | 2025-08-08 |
| NHTSA component | UNKNOWN OR OTHER |
NHTSA's summary
A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete. Tech is directed to drive a city route to complete the procedure.
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.
| BRIGHTDROP ZEVO 400 | 2024 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| BRIGHTDROP ZEVO 600 | 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| BUICK ENCLAVE | 2024, 2025 |
| CADILLAC CELESTIQ | 2025 |
| CADILLAC CT5 | 2025 |
| CADILLAC ESCALADE | 2025 |
| CADILLAC ESCALADE ESV | 2025 |
| CADILLAC ESCALADE IQ | 2025 |
| CADILLAC LYRIQ | 2023, 2024, 2025 |
| CADILLAC OPTIQ | 2025 |
| CADILLAC VISTIQ | 2026 |
| CADILLAC XT4 | 2023, 2024, 2025 |
| CHEVROLET BLAZER EV | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET BRIGHTDROP 400 | 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET BRIGHTDROP 600 | 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET EQUINOX | 2025 |
| CHEVROLET EQUINOX EV | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO EV | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SUBURBAN 1500 | 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET TAHOE | 2025 |
| CHEVROLET TRAVERSE | 2024, 2025 |
| GMC ACADIA | 2024, 2025 |
| GMC SIERRA EV | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| GMC TERRAIN | 2025 |
| GMC YUKON | 2025 |
| GMC YUKON XL | 2025 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.