When took my car to pep-boys for brake service they put a nail in the side wall of my tire. I inspected my car before I took it in. I also have tire pressure sensors on my car that didn't low tire pressure before took my car there. The mechanic showed me the nail in the sidewall. It was a very small nail that could never had driven over because it was on the side. I informed the manager and he said that none of his employees would never do such a thing. Of course the tire couldn't be repaired because the nail was on the side wall. They tried to sell me another for $138 dollars. What a lousy way to sell tires.