Today I wasted a lot of time dealing with a stuck spare tire winch on a 2007 Chevy Suburban. There is a lock mechanism on them that won't disengage. Some kind of secondary lock they call it in the manual. Very hard to get to laying under it to try and hit with a hammer and screwdriver so I managed to get the bolt out of it and took the whole winch out with the tire still on it. Can't imagine having to deal with this on the side of the road, just a terrible design. After reading online today this is a common GM issue. I'm throwing this winch in the trash and have already ordered a new different one off ebay, there are a lot them for sale on there! Just thought I would warn other GM owners about this before there stranded on the side of the road with a spare tire they can't lower down.