Call corporate office. I had something like this happen with wifey new car. They didnt tighten the oil filter and it was leaking oil. We took it back to Nissan since it was a new car. They charged us 125.00 Diagnostic fee. I took bill to oil place and they didnt wanna refund me.
They asked why i took car back to dealer. I told them becasue they where morons. Well they refused too pay, so i called corparate office and got a refund in 1 week.