Unfortunately, transmission replacements are very expensive. For a 2011 Nissan Altima transmission replacement, the cost will be between $4,600 and $5,000.
This estimate is for both parts and labor, with the brunt of the cost being parts. A new transmission will cost between $3,000 and $3,500, while the labor will cost around $1,500.
The transmission is one of the most important parts of the car, so this replacement, unfortunately, cannot be put off if you want to continue using your 2011 Nissan Altima.