2006 GMC sierra. Great truck. There are a few small issues listed below. It has been very reliable to me since I had it. There is a dent where the gas tank is. Also there is a check engine light but I believe the problem is the fuel injectors is getting air in them, So when you first start it after not driving for a while it takes a second. The starter is strong, so is the alternator so it's definitely not that. Plus I just put a brand new battery in so there's a perk. Besides that everything else on the truck work great!