2005 Nissan Titan transmission problems

We purchased a truck from nissan in october of 2004. It has been in the shop many times and in december of 2004, it was there over 30 days. The transmission and the rear end have both gone out, windows don't roll up and down correctly, rattling in the cab where the visor and garage door openers are held. The brake, vdc, tow, and ABS switch stay on all the time. The brakes are going out and the whole truck shimmies. Now in addition to the transmission being replaced once, it's slipping again.

(1)rear end brakes no movement while driving (2)fortunately incident happened at night with not a lot of traffic and no accident happened, however if this happened during the day it could have caused a major accident. The vehicles rear end, driving force, failed causing the vehicle to stop while driving and roll backwards while gas pedal is pressed. (3)vehicle was put into 4hi to get home, this occured saturday night, have to wait till monday to have vehicle towed to nissan dealership.