The other day I discovered, in my driveway, two little metal bars that looked familiar. Upon further inspection they turned out to be a couple of the weights used to balance the wheels. I've got Saturn chrome wheels and they glue the balancing weights on. I took it back to the dealer and sure enough, they rebalanced and reweighted all the wheels. They also checked underneath the front facia and replaced a few pins that were missing. (I'd heard that tip on a previous thread). Everyone might want to have a close look at they're wheels and count how many bars are on there now to compare in the future.