One problem related to differential unit has been reported for the 2005 Nissan Armada. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Nissan Armada based on all problems reported for the 2005 Armada.
I bought this car in 2005. The 4wd has never performed correctly. I have taken it back to the dealership numerous times and it still doesn't work. Of course, now the vehicle is way out of warranty, and Nissan will not pay for any repairs despite the fact that it hasn't worked right from the moment I bought it. I've never been able to use the 4wd system for any length of time. I've seen other posts on several other forums about this same problem. For now, I've taken the front differential out of my vehicle, and a friend of mine is going to see if there's a fix for it. I think it's obvious that the Armada and titan have design flaws concerning the front differential. I keep hearing about leaking and blown seals. I like the car, but I paid for a 4wd vehicle and I think I should have one. Is there any action I can take? against Nissan maybe? maybe they could pay me to be ok with their faulty vehicle? I've owned several Nissans before and had no problems, but I'm thinking that I'll never buy another one because of this. If there's a class-action lawsuit against Nissan for this, sign me up. Or maybe we could file one.