What battery does a Subaru WRX key fob use?
It depends on the key: the Remote Head Key (2015–2019) uses a CR1620; the Smart Key Fob (2016–2022) uses a CR2032; the Remote Key Fob – FCC ID CWTWB1U811 (2015–2019) uses a CR1620; the Remote Key Fob – FCC ID CWTWB1U819 (2011–2014) uses a CR2025. All are 3-volt lithium coin batteries, available at most grocery stores, pharmacies, and online retailers.
How do I know if my Subaru WRX key fob battery is dying?
Signs your Subaru WRX 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 Subaru WRX key fob battery last?
A Subaru WRX 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 Subaru WRX key fob battery myself?
Yes, replacing a Subaru WRX key fob battery is a simple DIY task that takes under 5 minutes. You only need a new CR1620, CR2032 or CR2025 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 Subaru WRX 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 CR1620, CR2032 or CR2025 battery?
CR1620, CR2032 or CR2025 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.
