Wedge is up but gauge and warning alarm says different
 

So last couple trips out my wedge works fine thought the full motion, but my gauge shows is fully down and the alarm sounds over 25mph saying to slow down because it's deployed.

Anyone have this happen and knows what the possible problem/fix could be?

More than likely some type of limit or proximity switch is down at the wedge itself and is stuck in the deployed position even though the wedge came up. Thats where I would start with a multimeter.

Or it's the mini MDMC computer that's under the dash. Often they can be screwy.. but it takes 2 seconds to swap one out and see if that corrects the problem. Check with your dealer, maybe they have one you can borrow to do the troubleshooting.