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Chevrolet Volt Recall 18V397: Volt Could Lose Power Suddenly, Raising Crash Risk

NHTSA campaign 18V397, reported June 14, 2018, 4,606 vehicles potentially affected.

What this recall means for you

A software update to the Hybrid Powertrain Control Module 2 may have disabled the cell balancing function in the hybrid propulsion system, which can lead to a low-voltage condition.

If voltage drops, the vehicle may lose propulsion, which increases the risk of a crash. Owners should take this recall seriously and have the vehicle checked as soon as possible.

The repair is free. Dealers will reprogram the HPCM2 at no charge. GM will notify owners, or you can contact Chevrolet customer service at 1-800-222-1020 and reference GM recall number 18215. You can also check your VIN for open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 18V397General Motors LLC
Component
HYBRID PROPULSION SYSTEM
Problem
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.
Risk
If the voltage drops, the vehicle may lose propulsion, increasing the risk of crash.
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.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Affected vehicles

Chevrolet Volt2013