"Service High Voltage Charging System" Error
ModerateElectrics & ElectronicsUsually caused by a low coolant level in the battery cooling loop or a faulty sensor. It prevents the car from charging.
Est. Repair Cost: £100–£400 (Sensor/Flush)
Reliability GuideCommon Problems with the
Common Problems with the
2012 Chevrolet Volt
We've identified 1 known issue that can affect the 2012 Chevrolet Volt. None are considered critical, but they're worth knowing about before you buy.
1
Known Issues
0
Serious
1
Moderate
0
Minor
All Known Issues
Buying Tips for 2012 Chevrolet Volt
- ✓Test drive the car to ensure the transition between battery power and the petrol range-extender generator is smooth and seamless.
- ✓Check the dashboard for the "Service High Voltage System" message, a known issue often requiring a software update or coolant level sensor fix.
- ✓Verify the health of the 12V auxiliary battery; a failing 12V battery can cause a cascade of bizarre electrical faults.
- ✓Ensure the charging cable locks securely into the port and the car accepts a charge without error messages.
- ✓Check the condition of the low-slung front rubber air dam, which scrapes easily on UK speed bumps.
- ✓Inspect the service history to confirm that the battery coolant loops have been flushed and replaced according to schedule.