Chevrolet update to the Hybrid Powertrain Control Module 2 (HPCM2) may have disabled the cell balancing function causing a low-voltage condition.
The short version
General Motors LLC reported a problem with the hybrid propulsion system. Here is what owners need to know.
An update to the Hybrid Powertrain Control Module 2 (HPCM2) may have disabled the cell balancing function causing a low-voltage condition.
If the voltage drops, the vehicle may lose propulsion, increasing the risk of crash.
GM will notify owners, and dealers will reprogram the HPCM2, free of charge.
Affected vehicles
These model years are included in NHTSA campaign 18V-397.
| YEAR RANGE | MODEL |
|---|---|
| 2013 | Chevrolet Volt |
What changed
Newest first. The record shows both when the recall began and what has changed since.
- Recall reported to NHTSA. LATEST
Drive one of these? Check your VIN to see if your specific vehicle is affected.
Check your VINWhat this record means
Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.
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