What battery does a Ford Mustang key fob use?
It depends on the key: the Smart Key Fob – FCC ID M3N-A2C931426 (2018–2023) uses a CR2450; the Smart Key Fob – FCC ID M3N-A2C31243300 (2015–2017) uses a CR2025 x2; the Remote Key Fob (2014) uses a CR2032; the Remote Head Key (2014) uses a CR2032. All are 3-volt lithium coin batteries, available at most grocery stores, pharmacies, and online retailers.
How do I know if my Ford Mustang key fob battery is dying?
Signs your Ford Mustang key fob battery is dying include: reduced range (having to get closer to unlock), intermittent button response, delayed unlocking, the low battery warning on your dashboard, or buttons requiring multiple presses to work.
How long does a Ford Mustang key fob battery last?
A Ford Mustang key fob battery typically lasts 2-4 years depending on usage. Frequent use, extreme temperatures, and proximity to electronic devices can shorten battery life.
Can I replace my Ford Mustang key fob battery myself?
Yes, replacing a Ford Mustang key fob battery is a simple DIY task that takes under 5 minutes. You only need a new CR2450, CR2025 x2 or CR2032 battery and optionally a small flathead screwdriver. No dealer visit or programming is required.
Do I need to reprogram my key fob after replacing the battery?
No, you do not need to reprogram your Ford Mustang key fob after replacing the battery. The fob retains its programming during battery changes. Simply insert the new battery and test the buttons.
Where can I buy a CR2450, CR2025 x2 or CR2032 battery?
CR2450, CR2025 x2 or CR2032 batteries are available at Walmart, Target, CVS, Walgreens, Amazon, auto parts stores like AutoZone and O'Reilly, and most grocery stores. They typically cost $6-12 for a 2-pack.
