I've had a problem with my truck saying power steering fault when I start it up only in cold weather. Also tried to pass a truck 2 weeks ago w Polaris ranger in tow and punched it and nothing happened. Then yesterday my check engine light came on. So I took it in this morning. Truck is done, they said one of my Cadillac converters was out, moisture was in electrical plug to eps, a deal was pinched, and a new update for ECM. Hope it's all good and they got me right in today. Maybe better mileage bc mine has slowly decreased! I have 9700 miles on it.