The serpentine belt powers a lot of engine systems. It runs the alternator, which charges the battery; the water pump (on some vehicles), which cools the engine; the air conditioning, which cools the driver and passengers; and the power steering pump, which allows for easier steering. When the belt breaks, all these systems shut down. 

 Serpentine belts are inexpensive. And they look downright cheap when you compare them to the cost of an overheated engine, a tow truck, time lost on the road, inconvenience, and the potential safety consequences of being stranded. 

 Good car care means never putting off preventive maintenance. Do yourself a favor. Ask our service advisor to have a technician glance under your hood and give that serpentine belt a quick look-over. And never overlook it.