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Service bulletin PB-12241

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 id10047659
Published by NHTSA2012-12-05
Manufacturer's numberPB-12241
Manufacturer's date2012-10-01
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

CHEVROLET: DUE TO SOFTWARE ANOMALY, HYBRID POWERTRAIN CONTROL MODULE (HPCM2)MAY OPEN AND RESET PROPULSION POWER RELAYS, AND ELECTRIC MOTOR MAY TEMPORARILY STOP, BECAUSE OF INCORRECT DATE INFORMATION. MODEL 2013 VOLT. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Transmission and driveline, Automatic transmission, Software, Transmission control module

Vehicles listed
CHEVROLET VOLT2013

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

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