About 25% of the time, my TCH NEVER goes into EV mode. All of the conditions are right for it (warmed up, below 40MPH, light on the gas , etc.) but it refuses to do it. I find that when I stop, restart the car, it then goes into EV mode as expected. Anyone else have this problem and if so did you find a solution? My guess is that the catalytic convertor heat sensor is faulty and during these no EV times, just never lets the system know it's at the proper temp. When I go in for my 5000 mile checkup, I'll have the dealer look into this.