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Service bulletin PIP4843H

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 id10113349
Published by NHTSA2017-08-15
Manufacturer's numberPIP4843H
Manufacturer's date2017-01-26
NHTSA componentELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR

NHTSA's summary

This Preliminary Information communication advises the technician that effective November 1st, 2010 the Drive Motor Generator Control Module part number 24266807 and 24279524 will be placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.

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, Alternator

Vehicles listed
CADILLAC ELR2014, 2015, 2016
CHEVROLET VOLT2011, 2012, 2013, 2014, 2015

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
PI14042017-08-15. Service bulletin. This preliminary informational bulletin provides a diagnostic tip for low line pressure or pressure regulator valve stuck after transmission service pump cover replacement.
PIP54622017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about Product Engineering is conducting a study on high mileage power inverters. Technician should replace the Drive Motor Generator Control Module with no expense to the customer.
PIP4843G2017-03-17. Service bulletin. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE DRIVE MOTOR GENERATOR CONTROL MODULE IS BEING PLACED ON RESTRICTION THROUGH THE GENERAL MOTORS TECHNICAL ASSISTANCE CENTER. DEALER WILL NEED TO CALL GENERAL MOTORS TECHNICAL ASSISTANCE CENTER FOR FURTHER ASSISTANCE.
PIP-4843-A2012-04-18. Service bulletin. CHEVROLET: GM TAC HAS PLACED, ON RESTRICTION, THE DRIVE MOTOR GENERATOR CONTROL MODULE PART, KNOWN AS PIM. *PE MODEL 2011-2014 VOLT, 2014 ELR. UPDATED 10/15/14. *PE UPDATED 02/25/15*LJ
PIP-4865-A2012-03-12. Service bulletin. CHEVROLET: DURING COLD TEMPERATURE, INTERNAL COMBUSTION ENGINE (ICE), RUNS WHEN VEHICLE IS PLUGGED TO CHARGER OR CYCLES ON AND OFF IF RUNNING FOR EXTENDED TIME. *PE