2015 Nissan Frontier Engine

I bought a 2015 Nissan Frontier SV from Elite auto dealership in Wichita, Ks on Dec 30-2021. After driving a car over one month, My car gets check engine light indicator turned on. I called the Elite auto dealership salesman to ask for getting my car fixed. However, my car salesman refused to fix it up. Therefore I would like you to help me to make Elite auto dealership take their responsibility to fix my car or refund my money back. Sincerely.

I HAVE A 2015 NISSAN FRONTIER SV WITH ONLY 21,514 MILES AND THE RADIATOR HAS A LEAK. NO FRONT END DAMAGE AND ALL MAINTENANCE WAS DONE BY SELLER (PERFORMANCE NISSAN) IN POMPANO BEACH FLORIDA. NO EXTENDED WARRANTY WAS PURCHASED BUT THEY DO HAVE A 20 YEAR/200,000 POWER TRAIN WARRANTY BUT THEY WON'T COVER THE RADIATOR. *TR