 My 2005 Maxima is a lemon just like all other 2005 Maxima's. When your left speakers blow out(hit the side of the center console until they work again.) The transmission slips horribly. I have dealt with this for 2 years. I have finally found out what it is and no matter how bad, this should always fix it(there is a green module or sensor behind the throttle body. It is hidden towards the back against the firewall. Play with this, it should start to improve immediately do it everytime you turn the car on) I have been doing it for 2 weeks and am satisfied. Those of you who do not have maximas, DO NOT BUY NISSAN. The styling is nice but the problems are infinite. The car is only good for 1 year