Not right, but it’s probably from a bad experience, those 10 speeds kinda have issues, they probably don’t want to be the last one to touch it if the CDF bushing walks out or the outer shell strips out, it’s hard to explain to a customer that the trans blowing up shortly after a service isn’t the shops fault. Kinda a no win situation with those things.

Call corporate. Happened to my buddy. They will call the dealer, and you will have your truck back there.

It’s because they all go bad after a 80-100,000 miles, regardless of service history. CDF bushings walk out, and they don’t want to be the last shop to have worked on it to avoid blame.

If you take a vehicle that has been modified to a dealer and want them to work on it, they have every right to refuse.

There’s a lot of information not being shared here. Could be several reasons to refuse to work on a person’s vehicle.

That being said, a dealership should be willing to accept work on a stock vehicle in reasonable condition.

I just tell people up front that I don’t recommend a flush if it’s in a high mileage vehicle with lack of maintenance, and if they choose to have the service I put on the work order, no warranty if things go sideways.

How many miles was it within the recommended service. If you was over way over, they should have had you sign a disclaimer if anything was to go bad. If they’re refusing then it must of not only been way over but the fluid must have smelled burnt and looked dark. Don’t blame them, people only think they need to service it when they feel something wrong trying to set the dealership up for their problems.

That’s because so many people take vehicles in for their very first transmission fluid change at 200,000+ only after it starts slipping, then blame the shop.