Technical Service Bulletin 21PBl — 2022 PETERBILT 579
ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)
Bulletin Details
| TSB ID | 21PBl |
| Manufacturer | |
| Vehicle | 2022 PETERBILT 579 |
| Component | ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC) |
| Communication Date |
Bulletin Summary
Electric Stability Control â Malfunction Indicator Lamp May Not Illuminate â NHTSA ID: 21V-719. An incorrectly programmed software parameter results in a failed signal from the electronic stability control (ESC) system to the dash lamp that indicates a malfunction. Updating the software parameter via Davie4 resolves the issue.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.