Hi all. I have a 2009 Subaru Impreza that I love. About a year ago several lug nuts fell off of one of the rear tires, and 2 of the studs sheared off and I almost lost the tire while driving. I had it towed to my Subaru dealer, who had recently done a tire rotation as part of my maintenance. They could come up with no explanation of how/why it happened, so I kinda blamed them that they must have not tightened the lug nuts sufficiently and thereby caused the problem. They split the cost of the repair with me and I went on my way. About 6 months later, 2 days after they had again rotated my tires, I found several loose lug nuts on a rear tire. I found it hard to believe they would make the same error again (especially after I raised such a stink and got them to pay for part of the repair), but they just tightened my lug nuts and that was it. No harm, no foul.
Now, about 1 year after the first instance, I again lost 3 lug nuts off a rear tire, and sheared off 2 studs again, almost lost the tire while driving and am lucky to be alive. The car had not been serviced in several months, and the tires had last been rotated 6 months ago (11,000 miles ago), so I don’t think this is a situation of someone, for the 3rd time, not tightening my lug nuts. Subaru has the car now and can find nothing wrong with it that would be causing the rear lug nuts to fall off and the studs to be sheared off. They are repairing the damaged wheel, but I am very concerned about this situation. I don’t think lightning strikes 3 times in the same place, so something must be wrong with the rear of my car. Anyone else ever have this happen? Any ideas what could be causing this? Any thoughts or advice would be greatly appreciated. Thank you!