One problem related to transmission solenoid has been reported for the 2012 Nissan Altima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Nissan Altima based on all problems reported for the 2012 Altima.
While driving on a highway at 75mph, my car just stopped going. I decelerated very quickly. I was pressing gas pedal to the floor and car would not increase speed. It just would not go. The rpms went over 3,000. No check engine light came on. I didn't even have any warning in the days leading up to this event that this would happen. There were a lot of vehicles on road at that particular time and a truck happened to be driving behind me. The truck and other vehicles were all swerving on either side of me to get out of my lane and as a result, I could not get my vehicle off of the road until they all passed. As I kept coasting along waiting for opportunity to pull over to side of road, I kept pressing gas pedal. Eventually that worked and I began to pick up speed again, but my car was accelerating very slowly. I drove to exit and got off of highway. I waited about an hour before returning home same way. On drive home accelerating was slow and rpms were erractic. There was also a whining noise when I gave car gas. This happened once more. I no longer drive car on highway so I haven't experienced it stopping while driving, but it still whines, accelerates slowly, and rpms are erratic. Vehicle has been parked at service department at dealership. My car only has 108,000 miles on it. I've never missed any scheduled maintenance which dealership performed majority of it. The warranty was only covered up to 60,000 miles. Now I'm told that at 108,000 miles, I need a new tcc, valve body, and solenoids.