So I just washed my gen 1 2014 volt an noticed the wheel last touched by a tire center one lug nut without its cover. Are the lug nuts solid or they have covers than can fall or crack off?
Yes, and rust can get between the cap and nut and distort the cap. Replacements are ridiculously expensive. If I had to do it again I'd look for decent looking solid wheelnuts on the aftermarket.They have metal caps that are part of the lug nut. The cap is not replaceable, you have to get a new lug nut.
I wish I'd known. GM Canada charged me $11.00 each to replace mine. I had stupidly assumed they would be cheap and told them to change them all. Five or six of them were bad enough to not fit the socket.I've never cared for the 2 piece lug nut that GM has been using for years. They always come apart and one of mine was missing a cap when I purchase my used Gen1 Volt last year. I replaced all the lugs with 20 Pc Set Spline Tuner Lug Nuts 12x1.5 with the socket. You can get a set for $19.99 shipped on Ebay and they're high quality. Plus all your lugs will be more theft proof than the standard hex lugs.
I've never lost a cap. On the other hand, I've also never let those grease monkey mechanics put an impact wrench on my car if I can avoid it. I've done all my tire work by bringing in my wheels and putting them on and taking them off the car myself.Just checked and I'm missing 4 caps now - all disappeared in the last year.
These nuts are garbage. I'm going to start looking for aftermarket replacements come winter swap time.
Not paying $11 each for the privilege of having to replace them every 3 years as they corrode and the caps come off.