I just changed my OVP Relay a few days ago. It's located just behind the battery. It's the one with the red top and a fuse. You can't miss it. Just pull it out and replace it with a new one. Easiest fix you'll do on your car. The relay cost about $100 at the dealers, I got mine for $58 from an independent shop.
Sometimes you don't need to change your OVP, just check your fuse and tap it a little and that may do the trick. Worth the try.