A false sense of security.
When a car is under warranty and a major part needs to be replaces or fixed the dealership will do everything in their power to prove that it's not their fault. Constantly interrogating, investigating, and lying so they can put the blame on you.
Customer: "...but it should be covered under warranty. The car warranty states it can be repaired at any Taicola Dealership."
Taicola Service Manager: "It states that in the car unity deformation transformation act of 13523 that if you didn't buy your vehicle at this specific dealership we can't fix it. I'm going to have to make some phone calls and I'm going to have the CSI investigate."
Customer: "You're full of shit."