The arbitrary wording on the covered/excluded items is quite unhelpful, as it appears the warranty is trying to explicitly exclude items regularly maintained by the dealer, that would be the responsibility of the dealer's maintenance warranty if they fail before 12mos. It's a shame the issue was discovered when the lug nut was halfway off: as many of you have stated, this could be easily repaired for a few dollars. My dependence on the dealership for maintenance has lead to over-tightened lugs may times, once when attempting to change the tire. If the failure occurred during routine maintenance, it would have been the dealership doing all of the tire removal and reinstallation, and they will not cover this damage. The studs look to be of some sort of steel alloy, and could have potentially corroded internally? Otherwise, the damage was from over-torqueing or crossthreading.
The answer to your last question is yes. My issues with the dealership revolved around the delivery condition of the car, and issues with the service manager/advisor, who has since departed. I assumed service issues would resolve once he was gone. Shawn, one of the mechanics there, does excellent work when he's working on my car, however I cannot control the technician assigned to the car. Same dealership quoted 3.0 hours for spark plug swap.
Originally Posted by blackfang
IIRC, a damaged stud is NOT covered under an extended warranty. Studs do not fail by themselves at that mileage. They fail from the repeated removal and installation of a lug nut during a tire rotation which is part of routine maintenance. Sometimes they are torqued too tight, sometimes they aren't, sometimes they are threaded wrong, who knows. Welcome to owning a vehicle and the costs involved of owning one. I would never even attempt to try and get that covered. I have had to replace a few studs on my vehicles and it is very easy to do especially with a c clamp(screw the washer and nut method which damages threads on both the new lug nut and stud anyways)
Now with that said, I think that is a little high for a replacement. $50-60 is more reasonable. My philosophy is this. If my technician breaks a bolt/lugnut/etc when we are taking it off and we have not touched that before the visit, the customer is on the hook for the repairs. If we break it putting it back on or we have removed that in the last visit, then we are on the hook for the repairs.
Is this the same dealership you have repeated problems with in the past?