Odometer doesn't match GPS miles

Km?

 

Did you buy it new in the U.S., or used? If used, is there any chance it is a Canadian unit, therefore displaying kilometers instead of miles? Was the dashboard cluster ever replaced?

My own 2012's odometer reads about 0.2 to 0.3% low, i.e. off less than 1 mile per 300 GPS miles.

 

150 miles is about 241 kilometers. If you want a 3rd opinion, open maps.google.com and right-click for "Measure distance." Drag the line to recreate your exact route. Find the km/h MPH button on your dashboard.

 

Yap, odometer being 100 miles off from actual 250 miles driven is too strange. Both my previous Gen3 and current PRIME odometers are dead on accurate within +/- 1 mile for ~300 miles distance traveled when compared to GPS, Google MAP, and the highway markers. As others suggested, I suspect km distance is being displayed.

 

or gps is showing "as the bird flies" and the actual driven path was "as a drunk bird flies"

but in reality, the above responses sound much more likely

 

Try different gps app

 

We don't yet have enough information to track down the error. It could be in the odometer, or in the phone GPS app, or an operator error. Or even more than one of those.

You'll need to give us more hints, and possibly do more testing. E.g. go out on a relatively straight highway (i.e. not a winding mountain or river road) for 10 miles or more, and compare both the odometer and GPS to the mileposts along the roads. While I prefer much longer distances for my calibration tests, the error you are seeing is so large that even a short distance should reveal a problem.

While we wait for you to find time to do such a test, could you provide a few hints right now?
(1) What particular smartphone GPS app did you use?
(2) For the trip where you discovered this problem, which cities were you traveling between, on what highway or route?

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PS. Now I see the other thread, indicating Houston to Austin. That answers a part of it, but please still fill in the rest.

 

You could use highway mileage markers for a third vote to break the tie. As fuzzy says, right now we do not have enough information to know whether the car or your GPS is right.

 

1. map on your gps device 1 mile,
2. drive the car on that route
3. read the odo.
4. relief hopefully