We purchased a 2013 Volt in early October. We now have about 900 miles on it. A few days ago, we took in the new car for a 25-inspection point. This was concurrent to getting a call from On-Star to take the car into the dealer to get a software update.
We have noticed a change in the car now since that. When we charge the car, it now shows 47 mile range instead of 41 mile rage. The car actually appears to go a bit farther, too. I wonder if others have noticed this.
Originally this update was to fix a problem of setting the car for delayed charge.
After much frustration, I have a tip to people trying to set the electricity rate and charge times. YOU MUST start with 12 am as the starting point, not per se what the electric company tells you about the rate times. Thus, if you have a winter off-peak that is in force at 12 am, set the time to start then. Assume, peak starts at 6 am. Set the finish at 6 am.
Now assume that peak runs from 6am to 8am, set that etc. Now, lets say peak is again from 6 pm to 9 pm. You set that. Then, off peak (maybe the last window on the energy page) starts and runs from 9 pm to 12.
The car is wonderful, BTW.