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Service bulletin SC-20-163

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11013690
Published by NHTSA2025-02-05
Manufacturer's numberSC-20-163
Manufacturer's date2020-11-23
Campaign id or software versionSC-20-163
NHTSA componentPOWER TRAIN

NHTSA's summary

Transit bus software update to increase regen in default drive and low modes to promote efficient driving. Recalibrating acceleration limiting to better achieve acceleration targets.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline

Vehicles listed
PROTERRA CATALYST2019 to 2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.