Starting issue

[pdx19751]

I have had several instances of being unable to star my vehicle. Recently stopped in traffic for about 20 minutes and vehicle would not start after numerous attempts. Tried shutting off the power, taking foot off the brake, then repeating the starting process. After about eight of nine tries it finally started. Happened again today when refueling. Foot on brake, pressed start, all power comes on but engine doesn’t start. Again, it took several tries at repeated starting process before the engine engaged.