Service bulletin 21NA115
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 | 10200127 |
| Published by NHTSA | 2021-08-09 |
| Manufacturer's number | 21NA115 |
| Manufacturer's date | 2021-06-28 |
| NHTSA component | ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM) |
NHTSA's summary
This informational bulletin provides information for dealers/technicians on Available ECM Calibration to Activate High Idle Mode for Fleet Vehicles
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, Engine control module
| CHEVROLET EXPRESS | 2021 |
|---|---|
| GMC SAVANA | 2021 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| PIP5628F | 2023-05-15. Service bulletin. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D |
|---|---|
| 16NA325 | 2022-05-31. Service bulletin. This technical bulletin provides a procedure on how to properly identify if there is any aftermarket calibrations loaded on the ECM or and detection of a power up hardware installed. |