NHTSA Complaint #11595660 — 2004 NISSAN ARMADA

We just keep having endless safety issues. We would be on freeway and all of a sudden it would stop while driving on Freeway!and car going really fast,and almost hitting us my whole family terrified..once in a heavey under pass where supper busy of big rigs almost hitting us one of the most terrifying things you can feel of almost being hit,and this vehicle is super heavey,and cannot push by my self with back injury and my wife with really bad Heart condion , at times it would only go 25 to 35 miles per hour.. my widows keep falling my lightingi I have done everything possible and replaced almost everything, then another problem we depend on what we have and need for our doctors appointment and sometimes don’t start and when it is turn off it dose this noise.. etc can you help me, I don’t have money to keep spending on this car moo put something is very wrong