Every once in awhile my 2006 Colorado (5 cyl) won't start and it doesn't set a code so I have no idea what the problem is. After it sits for 10 or 15 minutes it starts. I do my own mechanic work but it's getting harder with the newer vehicles. Any help is appreciated, MtJohn

I faced the same problem, it was a battery problem check it or visit a dealer or local mechanic.