Ive read numerous posts where people complain about how hot( or should I say lack of heat) the heater in the titan gets and I always thought to myself "man mine gets hot, sometimes too hot." Well now mine blows "luke warm" instead of hot like it used to. I took it to the dealer and they had to keep it all day so I had to rent a car because I cant be without transportation all day. The call me at 5 to say its done. I drop off the rental car and my girlfriend takes me to the dealership. I drive around for about 20 minutes to let it get completely warmed up and what do you know the heater still blows barely warm. They said they replaced the thermostat housing, thermostat, and coolant. Then they bled and refilled the coolant system because there was an air pocket. I drive back immediately after I discovered it still wasnt working correctly and they have a tech come out and check it, he says they are all that way, I call b.s. and ask if they have a titan we can compare against but he said there wasnt any we could check it in. I love this truck and this isnt that big of a deal because it doesnt get that cold in Vegas but the point is it should be working. I also hate the service at the nissan dealerships, they wont even give me a damn loaner car. Sorry for the long rant.