Carwings mileage incorrect?
- Thread starter jle152
- Start date
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garygid
Well-known member
Most stats on CW appear to be incorrect.
Some report that the TCU firmware upgrade makes things better.
Some report that the TCU firmware upgrade makes things better.
TonyWilliams
Well-known member
Was there a time when you didn't "ACCEPT" your overlords at Nissan from monitoring you? I don't know if that matters for total miles, because prior to NSB11-041 firmware update, CarWings is as crazy as the GuessOmeter.
After the firmware update, it is still about 2.5% off on mileage when compared to the odometer, or Google maps, et al.
After the firmware update, it is still about 2.5% off on mileage when compared to the odometer, or Google maps, et al.
Drivesolo
Well-known member
From what I see, CW seems to be showing about 20% less than my actual mileage (for any given time frame) and is always at least a day or two behind.
DaveL
Well-known member
My CarWings mileage reading is currently 2553 miles when the car's odometer read 3912. Why the difference?
I believe it's due to having the Leaf out of cell phone range when I turned off the car. In June I had the car at home which always has a strong cell signal. However in July & August I kept the car at our cabin (which has no cell service) and only very rarely drove it to some place that has cell service. In both months I drove it about the same number of trips, however CarWings shows that I made 139 trips in June but only 13 in July.
From watching the CarWings data, I'm guessing that the Leaf makes a call to the Nissan data center every time you turn off the vehicle to report data from the last trip (where "trip" = the time between turning the car on and off) If for any reason, the car is unable to make a connection to the data center, all of that trip's data is lost as the car doesn't seem to buffer any of this data for more than one trip.
So if you drive your car to work and park it in an underground parking lot that doesn't have cell service, that trip won't be recorded so your mileage will be off by that amount.
I believe it's due to having the Leaf out of cell phone range when I turned off the car. In June I had the car at home which always has a strong cell signal. However in July & August I kept the car at our cabin (which has no cell service) and only very rarely drove it to some place that has cell service. In both months I drove it about the same number of trips, however CarWings shows that I made 139 trips in June but only 13 in July.
From watching the CarWings data, I'm guessing that the Leaf makes a call to the Nissan data center every time you turn off the vehicle to report data from the last trip (where "trip" = the time between turning the car on and off) If for any reason, the car is unable to make a connection to the data center, all of that trip's data is lost as the car doesn't seem to buffer any of this data for more than one trip.
So if you drive your car to work and park it in an underground parking lot that doesn't have cell service, that trip won't be recorded so your mileage will be off by that amount.
DeaneG
Well-known member
If Carwings could tell you where you'd parked your car (why not), at least it would be good for that.
