The typical battery used in a 2019 Nissan key fob is a CR2032 3V lithium coin cell. While CR2032 is the standard, some regional or model variations may use a CR2025 instead. Always verify by inspecting the fob or checking the owner's manual.
In this article, we explain the common battery types for 2019 Nissan key fobs, how to identify which one your fob uses, and how to replace it safely. The guidance covers the most widely encountered configurations and practical replacement steps.
Common battery types for 2019 Nissan key fobs
Most 2019 Nissan intelligent keys use a single coin-cell battery. A minority of regional trims or older inventory might employ a different size, so it’s worth checking if your fob behaves unusually after a replacement.
- CR2032 — 3V lithium coin cell (the most common for 2019 Nissan fobs)
- CR2025 — 3V lithium coin cell (less common;可能 in certain regional variants or older batches)
In practice, CR2032 is the standard choice for the vast majority of 2019 Nissan key fobs. If you’re unsure, remove the old battery and compare its size to a fresh CR2032 or CR2025 from a retailer, or consult your owner’s manual or Nissan support.
How to identify the correct battery for your fob
To ensure you buy the right battery, inspect the battery inside the fob or refer to the manual. The easiest indicator is the battery size stamped on the metal can—CR2032 or CR2025. If the fob is difficult to open, or you’ve inherited a used unit, contact a Nissan dealership or an automotive locksmith for verification.
Replacing the battery in a 2019 Nissan key fob
Below are the standard steps to replace the battery in most 2019 Nissan key fobs. Before you begin, have the correct replacement coin cell on hand and work in a well-lit area to avoid losing small parts.
- Use a small flat-head screwdriver or coin to gently pry apart the two halves of the fob along the seam.
- Carefully lift the inner shell to expose the battery, taking note of the orientation of the old cell (+ facing up or toward the button).
- Remove the old battery, using a non-metallic tool if possible to avoid shorting.
- Place the new battery in the same orientation as the old one (positive side typically facing up toward the buttons).
- Press the two halves back together until they snap securely, then test the fob by pressing the lock/unlock or trunk buttons to ensure it works.
After replacing the battery, re-test the key fob at a distance from the car to confirm reliable operation. If the fob still doesn’t respond, re-seat the battery, inspect for corrosion, or consult a Nissan service professional to check for circuit or transponder issues. Some vehicles may require a brief re-sync with the car after battery replacement.
Troubleshooting and service options
If the fob remains non-functional after replacement, verify the battery contacts are clean and the battery is properly seated. Some models require a reprogramming or synchronization step with the vehicle, which a dealership or qualified automotive locksmith can perform.
Summary
The standard battery for most 2019 Nissan key fobs is a CR2032 3V lithium coin cell, with CR2025 as a possible alternative in some variants. Replacing the battery is a straightforward process: pry open the fob, swap in the correct coin cell with proper orientation, reassemble, and test. If issues persist, seek assistance from a Nissan dealer or locksmith to check for re-sync needs or hardware faults.