Service High Voltage Charging System err yep! Check engine light on and 2 codes P1E00 & B1325. I looked this up but not sure if it's the same as the problem with the Volts. My coolant looks a little low but not bad. I figured I'd try adding coolant and resetting the codes as some have said that worked but what to put in is confusing. It says use only Dex-Cool premixed 50/50 with de-ionized water. Are they saying add more water to the premixed Dex-Cool???