Several owners of 2017 Chevrolet Volt have experienced loss of power – so much so that the vehicles were disabled without warning, despite gauges showing around 100 miles of range available. GM has confirmed the issue and released a statement saying that “fewer than a couple hundred customers” are affected by the issue, which is said to be related to one or more faulty cells in the battery module. “We noticed an anomaly via data from OnStar and that led us to investigate the issue,” said GM communications manager Kevin Kelly.
Owners say that the battery failure was not like a typical “turtle mode” experienced when an EV approaches the end of its range. Most electric or hybridised cars do not allow the battery to be fully depleted, which can accelerate degradation. Instead, cars will provide a few miles of low-power output so the driver can manoeuvre to a safe location before the cell protection system completely cuts drive power. The report did not say if GM or battery supplier LG Chem plan to issue a formal recall for the problem.