EV Charging
What Owners Say
"Warning light came on which said "service high voltage charging system." Took it to the dealer and it was fixed for free. I believe it was a software problem that affected the cooling system for the main battery."
Anonymous, CA (2013 Chevrolet Volt None 1.4-L 4 Cyl plug-in hybrid)"The high voltage battery has a coolant sensor that sent a false signal that the coolant level was low, which prevented me from charging the battery. I installed a defeat device at a cost of $50. That did not completely fix the problem. Made two trips to the dealer. They charged a total of $322 to diagnose the problem and reprogram one control module. Either the BECM or the HPCM2."
Anonymous A., CA (2013 Chevrolet Volt None 1.4-L 4 Cyl plug-in hybrid)"Corroded charging unit $1,700 repair"
Anonymous, KY (2013 Chevrolet Volt None 1.4-L 4 Cyl plug-in hybrid)"I got a message to "service high voltage charging system after driving 5 miles and parking for an hour. I plugged it in to charge and it would not. Tok it to Landers CHEVROLET, Joplin MO. They found multiple codes and corrected. Then did multiple other inspections and found nothing to fix.Charged $144.99 for first action, and $144.99 for second action. Reprogrammed HPCM2 and BECM and BCM, CHARGED THE VEHICLE. THEY SAY THEY GAVE A $166.36 ESTIMATE FOR THE FIRST PROCEDURE. AND THEY SAY I APPROVED $158.64 ESTIMATE for the second procedure. I was not aware of any of this until I arrived to get the car. They are liars! But the car is now ok. I do observe that when fully charged it never uses up the supposed 10 kilowat hours it is supposedely charged to. Fortunately, since originally servicing the car when I bought it, I have used about 305 gallons of fuel, premium, and traveled 30,600 miles, getting about 102 miles per gallon of fuel. My cost to charge is about 15 cents oer killowat hour. Very acceptable for 3 years use."
Anonymous, MO (2013 Chevrolet Volt None 1.4-L 4 Cyl plug-in hybrid)"The car detected a battery isolation problem that prevented it from charging. It required recalibration to resolve. I was able to perform the repair myself by buying a vehicle interface and licensing the software for a weekend."
Anonymous, MD (2013 Chevrolet Volt None 1.4-L 4 Cyl plug-in hybrid)
"display says high voltage charging system needs service. Had a sensor replaced, warning still there.I cancel the warning with an OBD device (takes less than a minute) and the car charges properly.Have been doing this for about 2 years without any problems."
Anonymous, WA (2013 Chevrolet Volt None 1.4-L 4 Cyl plug-in hybrid)