its a gamble anytime you take a car thru a car wash. i personally would never do it. i have seen some ant' break off, and some that stay on. i would take it off for peace of mind tho. try and find a "touch-free" wash and you should not have any worries then. car washes with those brushes WILL DESTROY your paint!! i detail cars for a living and i see the effects from those car washes. it causes swirl marks in paint and damages finishes. good luck