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Tire change then SHVCS

2021 Views 13 Replies 7 Participants Last post by  brentalan
I finally wore down the tires that came with my 2012 volt and got a new set yesterday. I didn't go to the chevy dealer since I figured it was just tires like any other car and it saved me nearly an hour of driving. Last night when my wife was out running errands the Service High Voltage Charging System error showed up and now the car won't charge. Is there anything special that needs to be done when the tires are changed? Has anyone else had this happen to them?
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Sorry, I should have mentioned that I checked the coolant level this morning before posting; it's the first thing I thought of after following this forum for a couple of years. :) The coolant level is a little below the max line, but well above the min line. I guess now I'll need to hope that it is a random, minor thing when I take it in to the dealer on Monday. Whatever it is, we drove the car several times that day and plugged in with a successful charge several times as well before the failure.
Thanks brentalan, I've saved off a shot of your invoice to take with me on Monday.

Steverino- I saw a set of arrows on the passenger side of the coolant reservoir that I assumed were indicating a low mark line. I must have been mistaken. I don't have the WOT replacement sensor, so I'll be ordering one of those to install after the SHVCS is cleared.
Got my car fixed. It just needed some software updates. They reprogrammed the battery control module, battery energy control module, and hybrid powertrain control module 2. They said that they already knew what it was when I brought it in because they had two other Volts in for the same thing last week. They tried to charge me $234 saying that software updates are only covered by the bumper to bumper warranty. After an hour of phone calls between us, the service department and GM everyone finally agreed that those particular software updates are covered by the 8 yr 100k battery system warranty. Just wanted to give that heads up to anyone else who has this problem and stumbles across this thread. Maybe it'll save some time, money, and headache.
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