heating problems,4 times at the dealer still not fix.many parts have been change.no heat at the floor front and rear also at time you want ac but heat come out or you want heat and here come ac.i wonder if they can fixed it.this problem occur since over a year.
You didn’t ask a question but at this point with 4 attempts to fix the problem with no success, I’d be researching the Lemon Laws where you live to see if you can have Nissan buy the car back since they cannot seem to fix it.
Alternately, try another Nissan dealer and see if they have better mechanics.
I’d also contact Nissan Corporate at the number in your owners manual and get them involved. They OWE you a properly functioning vehicle since you PAID for one.