Are you struggling with a dead key fob for your Toyota FJ Cruiser? It’s a common issue, and one of the first things to check is the battery. Knowing the correct battery type is crucial to getting your key fob working again and avoiding any potential damage. Let’s dive into the specifics of FJ Cruiser key fob batteries to ensure you choose the right one.
To figure out the correct battery for your FJ Cruiser key fob, you might first turn to the owner’s manual. While this should be a straightforward resource, sometimes things aren’t as clear as they seem. One FJ Cruiser owner found themselves in a bit of a battery dilemma. They discovered a DL1620 battery inside their key fob, even though online searches suggested a CR1616 was the standard. This raises a valid question: what battery should you actually use?
It turns out, the CR1616 battery is indeed often cited as the correct type for many Toyota key fobs, including some FJ Cruiser models. The owner’s manual for certain Land Cruiser models even specifies the CR1616.
Owner's manual excerpt indicating the CR1616 battery for Toyota Land Cruiser key fob
However, the mystery deepens when considering batteries like the DL1620 or CR1620. As one insightful forum user pointed out, the “DL” prefix often indicates a Duracell brand, and the numerical part of the code signifies the battery’s dimensions. In the CR battery code, the first two digits represent the diameter in millimeters, and the last two indicate the thickness in tenths of millimeters. Therefore, a CR1620 battery is slightly thicker than a CR1616 (by 0.4mm).
Interestingly, a CR1620 or DL1620 battery might still work in a key fob designed for a CR1616. In the original forum discussion, the user confirmed their key fob functioned with the DL1620. The slightly thicker battery could even offer a longer lifespan, approximately 20% more than a CR1616, assuming it doesn’t damage the key fob’s internal components. It’s possible that some aftermarket key fobs are designed to accommodate the slightly larger CR1620 batteries.
However, it’s also important to note that battery types can vary depending on the year and model of your vehicle. One Toyota Land Cruiser owner with a 2007 model discovered that their key fob actually required a CR2016 battery, not a CR1616. This highlights a crucial point: always double-check your owner’s manual or the battery currently in your key fob.
Key Takeaways for your Fj Cruiser Key Fob Battery:
- CR1616 is often recommended: For many FJ Cruiser and Land Cruiser key fobs, the CR1616 is the standard battery.
- Check your owner’s manual: Always verify the specified battery type in your FJ Cruiser’s owner’s manual.
- Inspect the old battery: Before replacing, open your key fob and check the battery already inside to confirm its type.
- CR2016 might be needed for some models: Especially for later models, like 2007 and possibly onwards, a CR2016 battery could be required.
- DL1620/CR1620 compatibility: These slightly thicker batteries might work, and could offer longer life, but ensure they fit without excessive force and consider the risk of potential damage over time.
In conclusion, while CR1616 is frequently cited as the correct battery for Toyota FJ Cruiser key fobs, variations exist. Always prioritize checking your FJ Cruiser owner’s manual or directly inspecting the old battery in your key fob to confirm the correct type. Using the right battery will ensure your key fob functions reliably and prevent any unnecessary wear and tear.
