An anti-rattle sleeve that includes a retention feature on a split end that extends radially from the body portion and a slot configured to allow the retention feature to be pressed through an opening. The sleeve also includes a flange portion opposite the split end that includes an inner bump configured to contact a surface of an object bracket and an outer bump configured to contact a surface of a mounting bracket. The inner bump and the outer bump are located relative to the slot such that the sleeve is deformed by the brackets in a manner effective to reduce relative motion between the object bracket and the mounting bracket when compressed between the brackets.