Doesn't your Energy Leaf Screen reset the miles and gallons when you get a full charge? We were talking about Lifetime displays that do not reset.
The Energy Leaf Screen trip meter seems to have a limitation, at least for the Gen 1 Volts, of being unable to display more than 1,272 gas miles for both the total and the gas miles numbers. Yes, this does get reset on my 2012 Volt by fully recharging the battery, but this limitation can show up while on those long trips....
I drove ~2,300 miles from Oregon to Michigan in September in my 2012 Volt, and then retraced that route back to Oregon in October. I chose not to recharge during the trip. Before I reached Michigan, I noticed my usage screen had stopped counting at 1,272 total/gas miles. I started my trip back with a fully charged battery and a reset usage display. When the trip total reached 1,272 miles, the total miles froze at that number. When Gas Miles reached 1,272 miles, that number, too, stopped increasing, although the trip MPG, lifetime MPG, and Gas Used continue to display correct numbers. I never reached a 99+ gallon Gas Used total, so can’t confirm there’s a maximum number for the Gas Used counter. I reset my Trip B meter at the start of my drive, so I can confirm the usage screen Gas Used and Trip MPG numbers are correct, and the Trip B meter Trip Total miles number was an accurate total for this trip. I have no reason to believe the Lifetime MPG number was affected by the Total/Gas Miles number limits.
One available thread postulates this display limit is related to how the equivalent number of km is represented in binary counting. I’ve never read of any fleet car driver who used gas and never recharged the car reporting this, but then you wouldn’t expect them to notice this particular display. I suspect anyone who purchased such a used Volt would have recharged the battery before noting any questionable numbers displayed on the usage screen.
