California Lemon Laws
For a vehicle to qualify as a lemon under most state laws, the car must (1) have a substantial defect covered by the warranty that occurred within a certain period of time or number of miles after you bought the car, and (2) was not fixed after a reasonable number of repair attempts.
The California Car Lemon Law provides that the manufacturer and/or its authorized dealers may attempt to repair the vehicle with a reasonable number of attempts both for a used car or new vehicle under their original warranty before they are must buy back a vehicle or compensate the owner.
However, the process is not as simple as it sounds. So the best thing a consumer can do is to call a qualified, experienced lemon law attorney.