They include state lemon laws or warranty laws. As you move from state to state it differs, the Federal Magnuson-Moss Warranty Act and Uniform Commercial Code (UCC). In case your state lemon law does not cover your case, you can safeguard your rights by going to the latter two.
State lemon law: It is legislation that applies to the vehicles with persistent defects and defines cases where the manufacturer breached the warranty and what the consumer is entitled to if the warranty is breached. The law is effective only during the warranty period and if the vehicle has an express written warranty. Generally the customer possesses the right to claim a refund or a new replacement from the manufacturer. In most states of US it covers new cars that have been purchased for individual or family purposes and not bought for business purposes. Cars purchased for business purposes can be refunded or replaced under the Magnuson-Moss Act or Uniform Commercial Code (UCC).
The action that you have to take depends on the state where you bought or registered your vehicle. In a few instances launching a written complaint gives you justice, while in others you will have to hire an attorney. If your car dealer or manufacturer cannot satisfy your claim first you will have to go to the arbitration and, if needed, to the court of law for dispute resolution. As per the law you will take your manufacturer to the court and not your car dealer.
Magnuson-Moss Act: It is a federal lemon law. It is a law that serves as recourse of all state laws when state laws don't help. It protects the buyer from manufacturer's breaching warranty. If you sue your manufacturer under the Magnuson-Moss Act and you win the case, the manufacturer has to recover even your fees of your attorney. The law enforced in 1975 and covers the products that were acquired after July 4 that year. It is applicable to the vehicles and personal property priced $25 and higher purchase for purposes other than resale. The Act deals with both full and limited warranties. The case can be taken to court with a valid cause of action even after the expiry of warranty period if the defect appears in the vehicle during the period of warranty.
Uniform Commercial Code (UCC): This law grants the customer the right to claim a refund or a new vehicle replacement, if the defect present in the car proved to continue after a reasonable amount of attempts have been made to repair the inoperable part. The proof is defined by a particular state law.
You need to have law degree to take up cases and make complete career cases in automotive industry.