NHTSA recall 18V397000
Hybrid propulsion system
Chevrolet Volt
Reported Jun 14, 20184,606 vehicles affectedGeneral Motors LLCMaker’s number 18215Built May 1, 2012 – Jun 26, 2013
The defect
General Motors LLC (GM) is recalling certain 2013 Chevrolet Volt vehicles. An update to the Hybrid Powertrain Control Module 2 (HPCM2) may have disabled the cell balancing function causing a low-voltage condition.
The risk
If the voltage drops, the vehicle may lose propulsion, increasing the risk of crash.
The remedy
GM will notify owners, and dealers will reprogram the HPCM2, free of charge. The recall began July 24, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 18215.