I know how to reset it. Most dealerships want you to get service done there so a lot of them won't tell you how. They will just tell you that the mechanics need to do it. But I'll tell cause I'm a nice guy. First, turn your truck on (NOT crank the engine!). Be sure the mileage reading is on ODO (odometer). Now turn the key to the off position. Push in the button that changes your mileage readings. Now turn back to the on position. You should see 5 dashes going away one by one. When they turn to all zeros, it has been reset. Yes!