Service bulletin 21-NA-091
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 | 11012908 |
| Published by NHTSA | 2025-01-17 |
| Manufacturer's number | 21-NA-091 |
| Manufacturer's date | 2024-12-21 |
| NHTSA component | UNKNOWN OR OTHER |
NHTSA's summary
This service bulletin provides information for customers/dealers/technicians on Normal Camera Display Operation - Flashing Diamond - Spot - or UFO like image on Camera Display.
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.
| CADILLAC CT4 | 2020, 2021, 2022, 2023, 2024, 2025 |
|---|---|
| CADILLAC CT5 | 2020, 2021, 2022, 2023, 2024 |
| CADILLAC ESCALADE | 2020, 2021, 2022, 2023 |
| CADILLAC ESCALADE ESV | 2020, 2021, 2022, 2023 |
| CADILLAC XT4 | 2020, 2021, 2022, 2023 |
| CHEVROLET BOLT EV | 2020 |
| CHEVROLET CORVETTE | 2020 |
| CHEVROLET CORVETTE | 2022, 2023 |
| CHEVROLET SILVERADO 1500 | 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 2500 | 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 3500 | 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SUBURBAN | 2020, 2021, 2022 |
| CHEVROLET SUBURBAN 1500 | 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET TAHOE | 2020, 2021, 2022, 2023 |
| GMC SIERRA 1500 | 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 3500 | 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA DENALI | 2020 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON | 2020, 2021, 2022, 2023 |
| GMC YUKON XL | 2020, 2021, 2022, 2023 |
| GMC YUKON XL 1500 | 2023 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.