Service bulletin 21NA135
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 | 10200137 |
| Published by NHTSA | 2021-08-09 |
| Manufacturer's number | 21NA135 |
| Manufacturer's date | 2021-06-10 |
| NHTSA component | COMMUNICATION: VEHICLE TO INFRASTRUCTURE |
NHTSA's summary
This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
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.
| BUICK CASCADA | 2019 |
|---|---|
| BUICK ENCLAVE | 2019, 2020, 2021 |
| BUICK ENCORE | 2019, 2020, 2021 |
| BUICK ENCORE GX | 2020, 2021 |
| BUICK ENVISION | 2019, 2020, 2021 |
| BUICK LACROSSE | 2019 |
| BUICK REGAL | 2019, 2020 |
| CADILLAC ATS | 2019 |
| CADILLAC CT4 | 2020, 2021 |
| CADILLAC CT5 | 2020, 2021 |
| CADILLAC CT6 | 2019, 2020 |
| CADILLAC CTS | 2019 |
| CADILLAC ESCALADE | 2019, 2020 |
| CADILLAC ESCALADE ESV | 2019, 2020, 2021 |
| CADILLAC ESCALADE NA | 2021 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC XT4 | 2019, 2020, 2021 |
| CADILLAC XT5 | 2019, 2020, 2021 |
| CADILLAC XT6 | 2020, 2021 |
| CADILLAC XTS | 2019 |
| CHEVROLET BLAZER | 2019, 2020, 2021 |
| CHEVROLET BOLT EV | 2019, 2020, 2021 |
| CHEVROLET CAMARO | 2019, 2020, 2021 |
| CHEVROLET COLORADO | 2019, 2020, 2021 |
| CHEVROLET CORVETTE | 2019, 2020, 2021 |
| CHEVROLET CRUZE | 2019 |
| CHEVROLET EQUINOX | 2019, 2020, 2021 |
| CHEVROLET EXPRESS | 2019, 2020, 2021 |
| CHEVROLET IMPALA | 2019, 2020 |
| CHEVROLET MALIBU | 2019, 2020, 2021 |
| CHEVROLET SILVERADO 1500 | 2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 2500 | 2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 4500 | 2019 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SONIC | 2019, 2020 |
| CHEVROLET SPARK | 2019, 2020, 2021 |
| CHEVROLET SUBURBAN | 2019, 2020, 2021 |
| CHEVROLET TAHOE | 2019, 2020, 2021 |
| CHEVROLET TRAILBLAZER | 2021 |
| CHEVROLET TRAVERSE | 2019, 2020, 2021 |
| CHEVROLET TRAX | 2019, 2020, 2021 |
| CHEVROLET VOLT | 2019 |
| GMC ACADIA | 2019, 2020, 2021 |
| GMC CANYON | 2019, 2020, 2021 |
| GMC SAVANA | 2019, 2020, 2021 |
| GMC SIERRA 1500 | 2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA DENALI | 2019 (the catalog's model; the bulletin names a series or trim of it) |
| GMC TERRAIN | 2019, 2020, 2021 |
| GMC YUKON | 2019, 2020, 2021 |
| GMC YUKON XL | 2019, 2020, 2021 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.