Belts
Before checking belts remove keys, let engine cool and disconnect batteries (especially with a remote start installed.) With the engine cold check the belts. Most newer cars run just on belt called a serpentine belt. The belt should have no large cracks in it or any pieces missing. If you rub the back side of the belt with your thumb and a large amount of particles from the belt come off the belt needs to be replaced. If you know it has been on the vehicle for 5 years or more replace it. After replacing the belt put the old one in a bag in the trunk for a spare. An old belt is better than no belt.