: YJ navigation mileage issue
05-23-2012, 06:03 PM
Here is the issue.... My odometer on my YJ says 890 miles, at the same time the mileage on my navigation screen says 975 miles. Why do these not match???
My dealer has no idea, but they are looking into it. I told the sales manager that I want a new car, he laughed and said "no". So, my question is.....has anybody else noticed this? Am I out of line to ask for a new car. What will happen if I trade it in ? I think this will be a major problem, what should I do?
05-23-2012, 06:52 PM
What kind of vehicle?
05-23-2012, 07:01 PM
2012 Challenger Yellow Jacket, 6 speed, every available option
05-23-2012, 07:14 PM
Ok, pinion factor incorrectly set???
Yj early 90 body code for a wrangler....lol
05-23-2012, 07:48 PM
Instrument cluster/evic problem and before they changed it miles got logged?
05-24-2012, 03:23 AM
The dealer claims they have done nothing to the car, that it's not a big deal. But they have no idea why it is like that.
05-24-2012, 04:55 AM
Call Dodge Customer Service (http://www.dodge.com/webselfservice/dodge/index.jsp)?
Also, you have the 730N in your car right? Where in the Nav screen does it report mileage? I'm sure others with the same radio can check it . . .
05-24-2012, 07:25 PM
Just a guess but perhaps the pinion factor was set for an SXT at the factory rather than the larger wheels of the YJ. Larger wheels = fewer RPMs per tire = fewer miles on the odometer. Dealer should be able to reset it. GPS is usually pretty damn accurate.
Sent from my Autoguide iPad app
05-25-2012, 01:35 AM
I asked the dealer, they had no clue. I guess it's time to go to a new dealer.
05-25-2012, 04:21 AM
Is it currently not matching meaning you put a mile on your odometer and the NAV says something else? Does your MPH on your speedo match the NAV? Have you marked out a mile using mile markers on a highway to see which one (nav or odometer) matches?
Don't blame the car just yet!
05-25-2012, 04:49 AM
I checked on my NAV (730N) and couldn't find any mention of mileage. Can you post a photo of what you're referring to? I'm curious.
IMO, the odometer is the ONLY measure of mileage for a vehicle considered by anyone at trade in or lease return etc. The NAV or any other method of measurement is, TO THE BEST OF MY KNOWLEDGE, not considered a reliable source for the true mileage of a vehicle.
05-25-2012, 04:57 AM
i think what he is referring to is the distance to a destination, versus driven distance, if in fact that is what he is referring too, good luck
your beating a dead horse, nobody is going to do anything about that, all i would do is mileage, speed comparison with another vehicle, if it close, thats it
no further effort would be displayed here....
05-25-2012, 06:37 PM
Ok everybody, thanks for your opinions. I spoke to a dodge warranty person who is looking into it. He agrees the mileage on the odometer and the gps should match. So, I guess we will see what happens.
05-25-2012, 07:01 PM
Mileage to the Odometer is determined by gearing and does not change unless something changes to have an effect on the gearing (EG tire diameter). GPS is using satelites to log distance and depending on how precise the triangulation is at the time, could be off as little as 6' and as much as a 100'.
05-25-2012, 07:18 PM
Ask your dealership to do a speed and distance comparison with another vehicle, that's how we usually verify speedometer inaccuracies
05-25-2012, 10:48 PM
I noticed the same on mine today - I have a 2011 SRT and the 430N radio/garmin nav. You see the OD mileage on the screen when you touch the small speed reading in the lower right corner on the map. This opens up a large MPH indicator and the OD reading along with stats since the last reset. I have never opened that up until today and never reset it. My OD on EVIC read 6000 miles, the NAV showed 6008 miles. Now I have 2 sets of tires, the F1's that came on it (255/40/20) and a set for autocross (255/45/20). These are street tires too and I did leave them on and drive on them for about 2-3 weekends, so could the difference in diameter between the 40 and 45 affected the mileage that much over maybe 300 miles?
Something else that was strange is that the highest speed obtained is also recorded on the nav, it showed 137mph. I have not driven that fast yet except on a dyno and the car was not moving - so is the nav and speedometer linked somehow or did someone at the dealer take it out for a spin when they fixed the wind noise or someone test driving it before I bought it. :shrug03:
05-26-2012, 03:07 AM
Wild guess. The Navigation was on during part of the vehicles transport to the dealership. The Navigation system felt the car was moving (cause it was) so it registered mileage but because your wheels were not spinning, mileage was not registered on the odometer.