6. If your dealership says your problem is "normal wear and tear," you're SOL
We've all been there: walking into a dealership's service department with an annoying malfunctioning widget, and the technician brushes the issue off as "normal." Rather than having a complete meltdown at the counter, or turning around and going home, or venting your consternations in a cloud of anonymous rage online, Richard has what amounts to a five-step program for getting your problem taken care of:
First: Appeal your case to the dealership management. Seek out the service manager or service director, and suggest that the two of you drive the car to demonstrate the concern.
Second: If the car has had aftermarket modifications, be prepared to detail those changes, with receipts for parts and service work. Give the dealership a chance to understand the mods, and explain how, in your opinion, they have affected (or not affected) the car.