This dealer does not cover any replacement parts (especially catalytic converters, sensors, etc.) that are more than 1 year old. Since my Maxima is now due for a third catalytic converter/sensors at $1,200 (first one replaced at 52K!) third one would be at $1,200 at 82K within 2 years!
On-Board Diagnostic Computers are great for making money, they indicate which part is bad (highest prices items) then the service department replaces it. The cause is never investigated. Anyway, I'm no longer a Nissan customer.