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Service bulletin SB-19-02

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 id10163619
Published by NHTSA2019-08-08
Manufacturer's numberSB-19-02
Manufacturer's date2019-07-03
NHTSA componentELECTRICAL SYSTEM; STEERING

NHTSA's summary

Due to a wiring harness change, the cord grip on the power steering motor is the wrong size, which could allow water to leak into the motor wiring junction box, causing the power steering motor to stop working. Proterra issued this service bulletin to replace the cord grip with one with that has a water-tight fit.

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

Electrical system, Steering

Vehicles listed
PROTERRA CATALYST2018

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