WenmarOpen by Wenmar Pro

Service bulletin PIE0578B

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 id10181730
Published by NHTSA2020-10-26
Manufacturer's numberPIE0578B
Manufacturer's date2020-09-23
NHTSA componentEQUIPMENT; ENGINE; ELECTRICAL SYSTEM:STARTER ASSEMBLY

NHTSA's summary

This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a Slow Start and/or No Start, Battery Message Indicated, having to jump start on more then one occasion.

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, Engine, Equipment and accessories, Starter

Vehicles listed
GMC SIERRA 15002020 (the catalog's model; the bulletin names a series or trim of it)

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

Other bulletins for the same vehicles and component
PIE0594A2020-12-21. Service bulletin. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards an intermittent no start.