Experiencing a “Key Not Detected” message on your 2018 Ford F-150 dashboard can be frustrating, especially when your key fob is right in your pocket. Just like any battery-powered device, your Ford F-150 key fob relies on a small battery to function, and these batteries don’t last forever. If you’re suddenly finding your key fob is unresponsive or displaying warning messages, it’s likely time for a battery replacement. Don’t get stranded or make an unnecessary trip to the dealership – replacing the key fob battery on your 2018 Ford F-150 is a simple task you can easily handle yourself.
One common misconception is that all key fobs use the same type of battery. While many older key fobs utilize the CR2032 battery, your 2018 Ford F-150 key fob may use a different type, specifically the CR2450. This slightly larger battery offers a longer lifespan, but eventually, it will need replacing. Knowing the correct battery type is the first step in a successful DIY replacement.
Image: 2018 Ford F-150 key fob battery type CR2450 as shown in the owner’s manual.
To confirm the exact battery your 2018 Ford F-150 key fob requires, and to get detailed instructions, your owner’s manual is the best resource. It will provide specific diagrams and steps tailored to your vehicle. However, generally, the process involves opening the key fob, typically by using a small flathead screwdriver or similar tool to gently pry it apart at the designated seam.
Once you have access to the battery compartment, you’ll see the CR2450 battery. Take note of the battery orientation (+ side up) before removing the old battery. Carefully remove the depleted battery and replace it with a fresh CR2450 battery, ensuring you install it with the correct polarity.
Image: Step-by-step instructions for 2018 Ford F-150 key fob battery replacement from the vehicle owner’s manual.
After inserting the new battery, carefully reassemble the key fob, ensuring it clicks securely back together. Test the key fob functions – remote start, lock, unlock, and panic button – to confirm the new battery is working correctly. In most cases, replacing the battery will immediately resolve the “Key Not Detected” issue and restore full functionality to your 2018 Ford F-150 key fob.
Replacing your 2018 Ford F-150 key fob battery is a straightforward maintenance task that can save you time and money. By knowing the correct battery type (CR2450) and following these simple steps, you can keep your key fob working reliably and avoid any unexpected inconveniences. Always refer to your owner’s manual for the most accurate and model-specific instructions.
