Experiencing a “Key Not Detected” message on your Ford F-150 dashboard can be unsettling, especially when your key fob is right in your pocket. This was the exact situation I faced with my 2023 F-150 XLT ER, built in October 2023 and purchased in May 2024. Just six months after purchase, in November 2024, this warning appeared, signaling a low key fob battery. Having previously encountered a similar issue with another vehicle, I recognized the early warning sign and knew it was time for a preemptive battery replacement.
One crucial piece of information I want to share with other F-150 owners is about the key fob battery type. Unlike many garage door openers or some older key fobs that use a CR2032 battery, the Ford F-150 key fob requires a CR2450 battery. This detail might be easily overlooked, and referring to your owner’s manual is always a good idea to confirm the correct type. Below are screenshots from the owner’s manual of my 2023 F-150 Lightning, clearly indicating the CR2450 battery.
Hopefully, this firsthand experience and clear information will serve as a helpful reference for other F-150 owners when they search for “F150 Key Fob Battery” details and need a quick confirmation on the correct battery type for their keyless entry remote. Don’t get caught off guard by a dead key fob battery; be proactive and replace it when you see the “Key Not Detected” warning.
