I am financing a used car and found out the odometer has been turned back what are your rights in NJ?

I am financing a used car and found out the odometer has been turned back what are your rights in NJ?
First, how do you know it has been changed? Do you have proof? If so, go to the dealer you bought if from and ask for an explanation. Be polite. Yelling and making threats will not help you. If they are unwilling to listen to your complaint you will have to take them to court for a refund. You will need proof that they modified the odometer reading.