take it back ASAP and have them fix it .
.My best advice since i have to assume that you did not do it,,,,,,,,take the car to a shop that specializes on Hondas and have them do a buyer's inspection ,, trust me,, best 70-100 dollars that you will ever spend ,,, we have saved people a lot of money by finding issues before they finalize the purchase ,,
when it comes to buying a used car have it checked out ,,
If shop finds issues tell the dealer where you bought the car to fix them ( it ) or return your money..
Take a look in the DIY section before asking for help.
Always Diagnose First,,, Before Replacing Parts.