This is one of the downsides of Tesla's refusal to support a dealer network. For any other brand, there is always a dealer somewhere willing to make a buck by selling factory parts to third parties. It may ultimately require legislation to break this very unreasonable policy.
Edit: It wouldn't surprise me if refusing to sell parts to third parties is against the law in some jurisdictions now.
I disagree.
I was recently in accident where I was rear ended. Tesla called me within 30 seconds because my car somehow alerted them that I was in an accident.
Tesla towed my car to a certified body shop that pays a ton of money each year to Tesla for a license.
Why? Because Tesla says that they will certify that any Tesla certified body shop WILL return my car to me in showroom condition - where there will be no question of safety or anything due to the fact that my car was in an accident.
Tesla certified body shops WILL NOT bend parts back into place. They won't paint over defects. They won't....do a lot of things a non certified shop will do. When a lady hit me from behind there was an "un-noticeable to the naked eye" bend in a frame plate. The Tesla shop told me that Tesla will not allow them to straighten anything out. They were required by Tesla ( to keep their certification ) to replace the frame member. It showed up 4 business days later and I was rolling a few weeks after that.
So... "Tesla certified" is a phenomenal thing to me and depending on what is being repaired...could pose a huge safety risk.
On another note. The damage to my car was in the rear....however the pyro fuse in the safety belt restraint system blew. That is a safety function. The body shop replaced the pyro and all of the one-time-use safety belt parts.
I got my car back and noticed that my car wouldn't update properly. I took it to Tesla and they said that the RDU needs to be replaced because when a Tesla is in an accident....that the RDU ( located in the center console somewhere - because you have to take the entire center console out ) also blows and needs to be replaced and should have been replaced. The RDU is also a one-time-use restraint controller part after an accident.
The certified body shop apologized profusely and indicated that it was their mistake. Tesla ordered the part and installed it.
Its quite possible that a non-certified body shop will be able to make a dent look good, however do they know anything about how a Tesla fully works to where there are no additional errors or anything?
I doubt it.