text: Under the Commercial Statutes adopted by most states (UCC) every good sold by a merchant includes an implied (not written) law of merchantability (unless validly disclaimed). This means that the car you bought should be fit for its ordinary purpose (driving on a day to day basis). This is a basis for replacement of the car in and of itself. \n\nOn top of that you have an express 3 year warranty that they must honor. If the dealer cannot fix the problem after three attempts (generally) this is the reasonable amount of attempts the dealership should have to fix the car before you force the manufacturer to honor the express warranty by replacing the car. It may take a demand letter or even a lawsuit filed by an attorney before they know you mean business about enforcing the express warranty.