Can a 2007 Altima 2.5S with under 70,000 miles have a transmission problem?

Take the car to the dealer they should replace it for free. They are known for having short life spans.

Get another opnion! Does trans. shift ok? How does the fluid look and smell? Look blackish and smell brunt? Noise all the time or just when you "step on the gas"? I have several customers with this car and no problems at all, but there are exceptions to every rule. And as a rule this is a pretty good car!