Help

I have a 2001 Buick LaSabre 6 cylinder. My speedometer recently started showing I was going way faster than I actually was. If I was going 60 it shows 110. Is there something I can do to reset or will I have to take it to a mechanic? thanks

Check your driver information center, you may have converted to the metric system.......scroll through your data and if coolant is in Celsius, that is what happened......just scroll until you get to metric and reset it...