Why is the speed indicator stuck at 60-100 mph when I am doing 25?

What is your question?

My speed indicator was acting up just in the last 2 hours. It got stuck at 60-100 moh even though I was doing 25-30. I drove it quite a bit in warm weather today, hit a pothole last week pretty hard on the right side, and now am stopped and the indicator has gone back to 0 on start up. I don't think these cars have speedo cables anymore so did something overheat? Car is running perfectly with 186,666 miles. I really love this car!

What makes this problem better or worse?

Turning off the engine and letting it reset, perhaps?

How long has your 2009 Scion xD had this problem?

2hours