2020 Nissan Altima key fob battery
Correct battery
CR2032
NISSAN Intelligent Key · Applies to: United States
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NISSAN Intelligent Key: CR2032
Verified from official source- Battery
- CR2032
- Quantity
- 1
- Polarity
- Make sure that the + side faces the bottom of the case.
- Markets
- United States
How to tell if you have this key
- The Intelligent Key contains a removable mechanical key; Nissan's procedure starts by removing it.
- This manual lists no other remote key type for battery replacement.
Replacement steps (summarised from the manual)
- Remove the mechanical key from the Intelligent Key.
- Insert a small screwdriver into the slit at the corner and twist to separate the upper part from the lower part. Use a cloth to protect the casing.
- Replace the battery. Do not touch the internal circuit or terminals, and hold the battery by its edges.
- Make sure the + side faces the bottom of the case.
- Close the lid securely, then operate the buttons to check the key works.
Key programming: Not stated in the official source.
Official source
2020 Nissan Altima Owner's Manual and Maintenance Information — Nissan North America (owners.nissanusa.com)
2020 model year; p. 8-24 (Battery replacement › NISSAN Intelligent Key). Market coverage: United States. Checked 2026-10-18.
“NISSAN Intelligent Key … Replace the battery with a new one. Recommended battery: CR2032 or equivalent.”
Battery safety
- Keep coin batteries away from children. A swallowed coin cell can cause severe internal burns within hours. If you think a battery has been swallowed or placed in the body, get medical help immediately.
- If the battery compartment does not close securely, stop using the key and keep it away from children.
- Hold the new battery by its edges and avoid touching the circuit board or contacts.
- Replace only with the same type, and recycle the old battery according to local rules.
If the key still doesn't work
- Check the battery orientation and that the cover is fully closed.
- Make sure the new battery is the exact code listed above — similar sizes are not interchangeable.
- If the buttons still do not work, contact a franchised dealer. We do not cover key programming or security systems.