Basically, all belts loosen the same way, you have to take a wrench that fits the tensioner, and, you can find out where the tensioner is by looking online, or in the repair manual. When you find it,...
if your looking at you engine from the front view it goes your power steering belt followed by your alternator belt then at the back bottom is you a/c belt
usually u get a breaker bar or ratchet and put the right socket on it and pull to the left to loosen it will pop back in place and when u put belt back on just pull to left again