How to Replace Key Fob Battery in a Nissan Altima

If your key fob has been unresponsive or difficult to unlock your car, a simple battery replacement might be the fix you need. Let’s explore the process of replacing the key fob battery in your Nissan Altima and get back to the convenience and functionality of your keyless entry system. Let’s get started and have your key fob operating like new again.

2007 – 2023 Models

1. Purchase a replacement CR2032 coin battery.
2. Use a flathead screwdriver to gently pry open the key fob case.
3. Remove the old battery from the key fob.
4. Insert the new battery into the key fob with the positive (+) side facing up.
5. Close the key fob case and snap it back together.

2002 – 2006 Models

1. Purchase a replacement CR2025 coin battery.
2. Locate the small button on the back of the key fob and press it to release the metal key.
3. Use a flathead screwdriver to gently pry open the key fob case.
4. Remove the old battery from the key fob.
5. Insert the new battery into the key fob with the positive (+) side facing up.
6. Close the key fob case and snap it back together.