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Service bulletins for the 2015 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.

1419 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: High-voltage battery are shown. Show all

Bulletins, newest first
19NA0792019-10-28. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY. This technical bulletin provides repair information to correct a customer concern of a Propulsion Power is Reduced message displayed in the DIC and without DTCs set on higher mileage vehicles by reprogramming the HPCM 2.
N172130462 012019-06-24. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY; ELECTRICAL SYSTEM:SOFTWARE. Customer Satisfaction. Certain 2013 model year Chevrolet Volt vehicles equipped with a high voltage battery, may have a condition where it could gradually lose the ability to maintain voltage. If battery concerns are not addressed, over time the vehicle could enter a reduced propulsion mode while driving, or lose propulsion, or it may not start. Dealers are to update the Hybrid Powertrain Control Module 2 (HPCM2). This software update is intended to increase the amount of warning time provided.
PIP4869D2018-06-04. Service bulletin. HYBRID PROPULSION SYSTEM; ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY. This Preliminary Information communication provides information to the technician about vehicles that display a ?Propulsion Power is Reduced? in the Driver Information Center when driving in the mountains. Dealer should advise the customer the vehicle should be placed in Mountain Mode on the vehicle when the vehicle has a full charge if their travel plans involve mountainous driving before the next charge event.
PIC62922017-08-15. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY; POWER TRAIN. This Preliminary information communicates that aPropulsion Power is reduced message occurs during regular operation, and there are no DTCs present, then contact GM Technical Assistance for direction
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.
PIP4869D2015-06-18. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY. GENERAL MOTORS 2011-2015 CHEVROLET VOLT, CADILLAC ELR, OPEL AMPERA. CUSTOMERS HAVE CONCERNS WHILE DRIVING IN MOUNTAINS THEY EXPERIENCE A MESSAGE DISPLAY "PROPULSON POWER REDUCED" AND SHOULD USE MOUNTAIN MODE DURING DRIVE. *LJ

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