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Service bulletins for the 2014 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.

1655 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Transmission control module are shown. Show all

Bulletins, newest first
PIC5380F2023-12-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. Hybrid Powertrain Control Module 2 (HPCM 2) Part Restriction
PIC5920E2017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary Information communication provides information to the technician about vehicles that will not charge and Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0AA6 and/ or a P1F0E set on 2011-2013 Volt or a P0DAA on 2014 Volt or Cadillac ELR in the Hybrid Powertrain Control Module 2. Technician will need to inspect the Hybrid/EV Battery Pack drain plug, located on the battery tray, regardless of fluid level at the Hybrid/EV Battery Pack coolant reservoir. If any moisture is found during the drain plug inspection, contact the General Motors Technical Assistance Center for further assistance. If the coolant level in cooling system is at the proper level and there is no moisture in the battery during the drain plug inspection, and the coolant freeze protection is between -10 and -40 degrees Fahrenheit, then update the Hybrid Powertrain Control Module2 and Battery Energy Control Module with the latest Calibrations in TIS-2-Web. Technician will need to gather all measurements recorded while evaluating Diagnostic Trouble Code P0AA6 and contact the GM Technical Assistance Center for further assistance.
PIP54632017-08-15. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); HYBRID PROPULSION SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on and may have a loss of propulsion. Technician may find Diagnostic Trouble Code P0604 set in the Hybrid Powertrain Control Module Technician will need to replace the (T6) Power Inverter Module.
PIP52022017-08-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicles that have Check Engine Light illuminated with an "Engine Unavailable" and "Reduced Propulsion" messages on the Driver Information Center. Technician may find Diagnostic Trouble Codes a P0AB9 and P0AC4. Technician should not clear any Diagnostic Trouble Codes and ensure Global Diagnostic System 2 is up to date. Technician will need to use Global Diagnostic System 2 and check all modules for Diagnostic Trouble Codes. Now use Global Diagnostic System 2 to create freeze frame data from Hybrid Powertrain Control Module and the Engine Control Module and save a report. Technician will need to verify that the vehicle had not been run very low or out of fuel. Also verify the customer did not press the Power Button causing the vehicle to turn off while driving. Verify that the Internal Combustion Engine runs properly and no other engine related or communication related Diagnostic Trouble Codes are present. Technician should inquire if the remote star was used on the last two drive cycles before the Diagnostic Trouble Code set. Technician should update the Engine Control Module if so. Technician should inspect the ground locations G106 (engine block) and G113 (drive unit case) have been cleaned and are secure making sure the ground eyelets do not spin. Technician should also check for past service history for prior mechanical engine or wiring harness repairs. Inspect the cam timing connector and repair any damage.
PIC5380E2017-08-15. Service bulletin. HYBRID PROPULSION SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). This Preliminary Information communication advises the technician that the K114B Hybrid Powertrain Control Module 2, also known as the Hybrid Powertrain Control Module 2 part numbers 22994053 and 22985723 are being placed on restriction through General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.

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