Manuel Espinoza 
2013 Nissan Altima Sedan 2.5 SV 4dr Sedan (2.5L 4cyl CVT)
you know the story, bad transmission!!!
 I bought my car in June 2013 and went on trip immediately after. It did really good and I was impressed, I also owned a 1999 Altima (manual trans) and it went 370K miles on the original engine and transmission. This 2013 had to have the transmission replaced at 34K miles and the new transmission at 45K behaves pretty much the same as the previous transmission. Whether the problem is the alternator or the transmission, Nissan should stand behind their product and correct the issues at n o expense to the customer. A Nissan mechanic told me that since Renault bought Nissan the quality has been diminishing on their products and it shows not sign of getting better. I am in the process of getting rid of my Altima and getting an Accord with manual transmission. I will never buy Nissan again, not because of the transmission, but for their lack of care in solving a known issue to them.