Technical Service Bulletin 20CSA-09 — 2021 WESTERN STAR 4800
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | 20CSA-09 |
| Manufacturer | |
| Vehicle | 2021 WESTERN STAR 4800 |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
Customer Service Announcement for DiagnosticLink Software Update Reminder. Due to various software changes and fixes, vehicles will require DiagnosticLink 8.12 to perform functional programming. Failure to use this version may cause errors, incomplete programming, and poor vehicle performance. Because of this, all DiagnosticLink 8.09 installed versions will be disabled as of Thursday, July 23, 2020.
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.