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Service bulletins for the 2012 Chevrolet Volt

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.

1848 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
PIP4840Q2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary Information communication advises the technician that the 4ET50 electric variable automatic transmission assembly and component restriction for the 2011-2016 MY Chevrolet Volt and Cadillac ELR. Dealer will need to call General Motors Technical Assistance Center for further assistance.
PIP4841P2017-05-16. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; POWER TRAIN:AUTOMATIC TRANSMISSION. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE HIGH VOLTAGE DRIVE MOTOR BATTERY AND BATTERY SECTIONS ARE BEING PLACED ON RESTRICTION THROUGH THE GENERAL MOTORS TECHNICAL ASSISTANCE CENTER. DEALER WILL NEED TO CONTACT GENERAL MOTORS TECHNICAL ASSISTANCE CENTER FOR FURTHER ASSISTANCE.
SB-03-07-29-004K2016-08-06. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. THIS INFORMATIONAL BULLETIN PROVIDE INFORMATION ON THE OPERATING CHARACTERISTICS OF A MANUAL TRANSMISSION.
PIP53322016-07-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIC5380G2016-06-22. Service bulletin. POWER TRAIN. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIC5380D2016-06-17. Service bulletin. POWER TRAIN. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIP4840K2016-06-09. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIP4840J2016-05-09. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIP5081A2016-04-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIP5081B2016-04-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIP5081D2016-04-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PIC-59552014-03-20. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. CHEVROLET/CADILLAC: THE ROTOR B BEARING NOISE, ON SOME VEHICLES, NEED A REPLACEMENT PER P/I #PIP5081 AND CAN BE DONE ON CAR, TO PROPERLY ADDRESS ISSUE. MODEL 2011-2014 VOLT, 2014 ELR. *PE
PIC-5380-B2012-02-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). CHEVROLET: SOME 2011-2012 MODEL YEAR VEHICLES MAY EXHIBIT A SITUATION WITH THE HYBRID POWER-TRAIN CONTROL MODULE 2 (HPCM 2) PART RESTRICTION. DIAGNOSIS FROM GM TAC MAY LEAD TO REPLACEMENT OF HPCM 2. *PE UPDATED 12/9/14. *PE

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.