Technical Service Bulletin SC-21-086 — 2021 PROTERRA CATALYST
FUEL/PROPULSION SYSTEM
Bulletin Details
| TSB ID | SC-21-086 |
| Manufacturer | |
| Vehicle | 2021 PROTERRA CATALYST |
| Component | FUEL/PROPULSION SYSTEM |
| Communication Date |
Bulletin Summary
Transit bus software update to the batteries, charge controller and vehicle controller. Fixes coolant level LEDs, ESM updated specific parameters around temperatures and auto pack configuration.
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.