Service bulletin N232427140
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 | 10247181 |
| Published by NHTSA | 2023-12-13 |
| Manufacturer's number | N232427140 |
| Manufacturer's date | 2023-12-13 |
| NHTSA component | ELECTRICAL SYSTEM |
NHTSA's summary
Customer Satisfaction Program - Certain vehicles equipped with tire size 255/70R22.5 may have a calibration error where the vehicles were built with an incorrect tire size value. As a results, the speedometer will show a vehicle speed higher than the actual vehicle speed while driving and the odometer will accumulate miles faster (approximately 14% faster) than the “actual” or “True” vehicle miles. Additionally, mileage data collected and stored in the Mimamori Unit (MMU), will be incorrect. Dealer will have the Cummins Engine Control Module (ECM) reprogrammed with the correct tire size value and reprogram the MMU.
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
Electrical system
| CHEVROLET 6500HD | 2022 to 2023 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.