Service bulletin 21NA020
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 | 10194093 |
| Published by NHTSA | 2021-05-24 |
| Manufacturer's number | 21NA020 |
| Manufacturer's date | 2021-04-07 |
| NHTSA component | BACK OVER PREVENTION; ELECTRICAL SYSTEM |
NHTSA's summary
This technical bulletin provides a procedure to correct a click type noise heard from the starter when cranking.
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.
Components
Driver assistance, Electrical system, Backup camera
| CHEVROLET 3500 | 2018 to 2019 |
|---|---|
| CHEVROLET 3500 | 2020 |
| CHEVROLET 4500HD | 2018, 2019, 2020 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 070601016G | 2022-06-13. Service bulletin. This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement. |
|---|---|
| 20NA197 | 2022-05-31. Service bulletin. This technical bulletin provides a procedure to inspect and repair the fuel pressure sensor if found the cause of the customers concern. |
| 21NA091 | 2021-12-27. Service bulletin. This service bulletin provides information for customers/dealers/technicians on Normal Rearview Camera Display Operation - Flashing Diamond - Spot - or UFO like image on Rear View Camera Display. |
| 20NA188 | 2021-12-27. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Rear View Camera Image Flickers When Brake Lamps or Turn Signals are On. |