How do you replace alt belt on 2013 ford escape?

To replace the alternator belt on a 2013 Ford Escape, first, disconnect the negative battery terminal for safety. Then, locate the serpentine belt tensioner and use a wrench to relieve tension on the belt. Remove the old belt from the pulleys, route the new belt according to the belt routing diagram, and then reapply tension using the tensioner. Finally, reconnect the battery terminal and start the engine to ensure proper installation.