Service bulletin 22NA021
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 | 10212636 |
| Published by NHTSA | 2022-05-31 |
| Manufacturer's number | 22NA021 |
| Manufacturer's date | 2022-01-31 |
| NHTSA component | ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER |
NHTSA's summary
This informational bulletin advises the tech of a possible loose bolts at the turbo actuator and to replace turbo if the bolts have been found loose.
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
Engine, Turbocharger or supercharger
| CHEVROLET SILVERADO 1500 | 2020, 2021, 2022 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| GMC SIERRA 1500 | 2020, 2021, 2022 (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.
| 21NA113 | 2022-06-21. Service bulletin. This technical bulletin provides a procedure to perform a learn procedure for the turbo actuator. |
|---|---|
| PIP5735A | 2022-01-24. Service bulletin. This Preliminary information communicates to dealer technicians normal operating characteristics of the turbocharger exhaust brake. |
| PIP5670B | 2020-02-10. Service bulletin. This preliminary information communicates the part restriction for the diesel turbocharger and EGR components. Updated to provide instruction on gathering additional data. |
| PIP5670A | 2019-11-12. Service bulletin. This preliminary information communicates the part restriction for the diesel turbocharger and EGR components. Updated to provide instruction on gathering additional data. |
| PIP5670 | 2019-09-16. Service bulletin. This preliminary information communicates the part restriction for the diesel turbocharger and EGR components |