I PUT MY TRUCK IN PARK ON THE ELECTRONIC TRANSMISSION CONTROL WITH ENGINE RUNNING WALKED AWAY ABOUT 20 YARDS WHEN THE TRUCK STARTED ROLLING I TRIED TO RUN AFTER IT BUT ONLY GOT MYSELF HURT AND THE TRUCK TOOK OUT A MAILBOX AND FENCE.THESE ELECTRONIC TRANSMISSION SHIFTERS ARE NOT TO BE TRUSTED. IM NOW AFRAID OF IT ITS NOT TO BE TRUSTED I ALWAYS MAKE SURE THE EMERGENCY BRAKE IS ON.I WAS LUCKY WHEN IT ROLLED ACROSS THE ROAD IT DID NOT HIT ANOTHER CAR