This bulletin applies to a number of Nissan vehicles, including the following:

2002-2010 Altima

2004-2010 Armada

2005-2010 Frontier

2004-2010 Maxima

2005-2010 Pathfinder

2004-2009 Quest

2004-2010 Titan

2005-2010 Xterra

If the A/C TXV (thermal expansion valve) needs to be replaced for any reason, and the evaporator is operating normally, replace the TXV only. Do not replace the heater and cooling unit assembly or the evaporator assembly. The A/C TXV is now available separately as a service part.