Yes I did say using the Eco button temporarily disables the stop/start function - the system resets when the ignition is turned off.To restart the engine after the stop function has operated, one should fully depress the clutch pedal, select first gear and the engine restarts straight away. If you're doing something different, you're not operating the feature correctly. If the engine doesn't restart after fully depressing the clutch pedal and selecting first, there could well be a fault with the car. The owners manual explains the parameters the stop/start system operates within. Since 2009, I've had two Auris 1.33's with the same system, had no issues with the stop/start system, found car to be more economical than my previous 1.4 Corolla and found the Auris to be more relaxing to drive in city traffic