We have a new 2007 Jeep Liberty limited, purchased last March. Immediately we noticed that the speedometer was inaccurate and always reading fast. This was noticeably evident as we passed through safety and school zones that show the car speed on the roadside. I had the dealer check it out and they couldn't find any problems. So we started measuring using roadside mileage markers and a timer. We found that at 60 miles/hour it took 315 seconds to go 5 miles. That's 5% @ 60 mph or 3 mph. We also found that it was also off by 3 mph at all other speeds too, so at 30 mph that turned out to be 10%. that's unacceptable ! however Chrysler says that's acceptable and in fact points out in a printed reply that the government allows that degree of accuracy now assuming my average speed is about 45 mph, 3 mph is a 7.5% inaccuracy. I also purchased a long term warranty agreement from Chrysler and I will be short changed on that by 7.5% also and that's fraud! all I want is for the Chrysler to fix the algorithm that computes the speed and odometer reading. The only variable the dealer can adjust is the tire size. Does the government safety standards allow for 7.5% inaccuracy?

- Elmira, NY, USA