Being in Quebec, winter tires are mandated by law. So I did what I have done for all other vehicles, ordered some tires from Costco and booked installation. I did this last Friday, and then on Sunday I had a flat. Somehow the interior sidewall had a hole in it. Probably a defective tire...so gotta deal with that. The sealant wouldn't work for a sidewall so I am now a victim of the lack of spare tire to get to Costco and have the tire replaced. So...I used Honda roadside assistance who towed it to the dealership. I had the dealership put on one of my summer tires so I could get over to Costco and get the other tire swapped out and then put on. Honda dealership informed me that during installation Costco broke the antivibration mechanism which to my understanding is part of the mag. It's about $500 to replace. I brought this up with Costco, and their manager was not in so I am supposed to get a call back. That was two days ago, still no call. I also called Costco customer service who told me a tire specialist would get back to me....also no call back. Now I am stuck where I'll have to chase them around to get them to pay for the damage. I'll also have to check the other 3 tires to see if the same damage was done on them. I am hoping Costco makes this right, but in the interim thought I would put this out there so you can all warn garages about this anti-vibration mechanism to make sure they know how to deal with it and not wreck it. It's not a safety issue, but I did lease my vehicle and Honda knows about it. I won't be able to return my lease without paying for this.