One problem related to air brake check valve has been reported for the 2002 Nissan Altima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Nissan Altima based on all problems reported for the 2002 Altima.
I left my 2002 Nissan Altima sit out overnight (temps dropped below 10 degrees). When I drove the car in the morning, the brakes failed. I pushed down on the break pedal, but it would not go down and the brakes did not work. Fortunately, the brake failure did not cause or result in an accident. I contacted the dealership. They said they believe it is a "check sensor" and are replacing it at my expense later today. This has happened to me about 4 times. It always happens when it is below 10 degrees outside.