If by "deceived," you mean that the odometer was rolled back, then very serious offenses were committed. Knowingly rolling back an odometer ("odometer tampering") violates federal law, as well as Texas criminal law *and* the Texas Deceptive Trade Practices Act. On the other hand, if you recall a salesman telling you the odo read one thing when, in fact, it read something else, you may just be talking about "buyer's remorse"--usually not a basis for setting aside a contract, if the false...