Technical Service Bulletin 01-074 — 2018 KENWORTH T440
VISIBILITY
Bulletin Details
| TSB ID | 01-074 |
| Manufacturer | |
| Vehicle | 2018 KENWORTH T440 |
| Component | VISIBILITY |
| Communication Date |
Bulletin Summary
Fix-As-Fail -ÃÂ C500, T440/T470, T800, W900 chassis HVAC Controllers may become unresponsive after rotating the temperature control knob quickly. HVAC Controllers with improved firmware are available to resolve this 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.