The gear on the power flow meter (indicating the engine is coupled to the drive wheels) has stopped its normal behavior on my car.. I drive 100 miles round trip daily and recently, I've noticed when on the highway - the gear hasn't been showing up. I have noticed a slight decrease in my mpg as well. Temps are the same, speeds are the same, wind is the same. No warning lights etc. It will show up a few times when I first start driving but then just disappears. I have 5500 miles on my car.. Has anyone else noticed the same behavior?