apparently unhooking the battery did reset the Check Engine light in our 2011 Silverado 1500 mentioned above .... that truck has been traded and its NC license plate has been turned in .... our new 2026 Silverado 2500HD is parked in our driveway .... she's dirty because tomorrow (Thursday) it will be driven to the fellow who will apply a ceramic coating doesn't want the new ones he works on to be washed by any dealership .... he prefers to do it himself .... Friday morning we head to Myrtle Beach, SC and plan to return home on the following Monday .... the weather forecast is kind of iffy but we hope he will be through with our truck by the time we get back .... so far, we've driven her about 50 miles today and we are well pleased with both its ride and handling ....