Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Let's see if you can adjust the parking brake shoes in so that they let go before you try cutting the cable. That's going to be expensive to replace.
Take a look at this diagram:
You will need to pull the rear wheels and then pull the rubber plug in the rotor so you can see the parking brake shoe. If the hole doesn't line up so that you can see the adjuster let me know.
Here is a diagram of the brake cable system. You will want to inspect the cables to make sure nothing is pinched and keeping the brake applied.