According to the Federal Trade Commission, the Magnuson-Moss Warranty Act requires that any written warranty for a product that costs more than $25 must be available for review before the sale is made. This means that the dealership should provide you with a copy of the warranty document before you sign the contract to purchase the vehicle.
The warranty period typically begins on the date the car is delivered to the customer, even if the contract to purchase was signed earlier. However, some dealerships may allow the warranty period to begin on the date the contract was signed, so be sure to clarify this point with the dealer.
If the car is not delivered until a month or two after the contract is signed, the warranty period will still start on the delivery date. This means that you will not have the full warranty period if you wait a long time to take delivery of the vehicle.
It's important to understand the terms of your warranty and how it is calculated so you can make informed decisions about when to purchase and take delivery of your new car.