Technical Service Bulletin R2105 — 2021 PETERBILT 389
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | R2105 |
| Manufacturer | |
| Vehicle | 2021 PETERBILT 389 |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin Summary
Peterbilt has determined that certain model year 2021, pre-production chassis are eligible to have specific parts updated to production level.
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.