Consumer Law

I am currently financing a 2015 Hyundai Tucson for my son which was bought on 12/28/22. On 3/22/23 the engine seized. He did not even make it to his first oil change. We found out that it was not the original engine in the car. It was not on he Carfax report nor was it disclosed to us a t the time of purchase. It was bought as is with the purchase of an extended warranty. We had it towed to a Hyundai dealership which the warranty company did approve a new engine. The dealership did say it would take approximately 6 to 8 months due to the amount of cars ahead of him. Everytime I try to call for an update no one answers the phone or returns msgs. On 8/1 my mother went to the dealership in person to find out what was going on. She ended up having to speak to the dealership manager and was told there was 18 cars ahead of us. On 9/1, I spoke with a service rep and was told there were 19 cars ahead of him. Yesterday we were told more than 20. Do I have legal rights to file a claim