My car stopped or dropped dead in parking lot of summerlin shopping center. I was shocked. Had to call roadside assistance, no power than had to wait for a tow truck, no power. Towed to Firestone on Cheyenne and they found the problem. Cables were dirty or corroded to battery. I would never have known that nor did anyone else. They cleaned them and reassured me that they were now okay and to spray them, etc. Saved my life. My gosh I absolutely had no idea of what was wrong and didn't charge me for finding the problem. Unbelievable!!!! Accolades to them for discovering and fixing my car!!!!!!