general problems of the 2008 Chevrolet 2500

Since August I have noticed approximately 5-6 incidences when there was a brief failure in the ignition of the truck causing me to have to turn the ignition key a second time. It has started correctly on the 2nd try, so far. However, each time this has happened, I've noticed that the clock went back to default. This does not happen every time nor does there appear to be a pattern for when it happens such as driving a short distance, a long distance or the first start up of the day, etc. I'm not getting any malfunction warnings. The vehicle is up to date on inspections and maintenance. The battery was replaced about a year ago. The vehicle is equipped with an after factory electric brake unit. I am the 2nd owner of this vehicle. To my knowledge, it has not been in any accidents nor has it had any other malfunctions.

While driving out of my driveway, I suddenly lost both power steering and power brakes. I was able to get back into my driveway, but with considerable effort. I called my mechanic and was advised that the power steering pump had failed, causing the power brakes to fail, also. The power steering pump shaft broke. I use the truck mostly to tow a horse trailer. I shudder to think what may have happened had the failure occurred on my way to a camp site on a curving two lane road. I researched the failure on line and discovered it is not a rare occurrence, and has been happening to several model year Chevrolet trucks. This is a low mileage vehicle I purchased new. It has never been abused or misused.