So-called Lemon Laws vary from state to state. Typically, a defect covered by the Lemon Law must be a major defect which substantially impairs the use, value, or safety of the vehicle. Lemon laws generally impose time or mileage limitations regarding when the defect must be presented to the manufacturer or dealer in order to be covered under the Lemon Law. The manufacturer must repair the defect within a reasonable number of repair attempts. If the manufacturer fails to repair the defect or defects in the vehicle within a reasonable number of repair attempts, the consumer is entitled to a repurchase or replacement of the vehicle. In some states if the defect is of such a character that there is a substantial risk of death or serious bodily injury if the vehicle is driven, the vehicle is presumed to be a lemon if the defect continues to exist after even one repair attempt. If the defect does not fall into this category, additional repair attempts are normally required. In some states, three repair attempts for a defect is enough to warrant a buy back or replacement. Other states require four repair attempts or more.