My RAV4 is equipped with the push button start/stop and when I applied the brake (the first time) and pushed the button nothing happened. It just so happened I sat in the car and waited about 30 minutes, then decided to try again and it started. The second time I tried the same thing and it worked again. The third time it did not work, but then the tow truck arrived and the driver tried it and it worked. What's going on?