What battery does a GMC Sierra key fob use?
It depends on the key: the Remote Key Fob (2011–2023) uses a CR2032; the Smart Key Fob – FCC ID YGOG21TB2 (2022–2025) uses a CR2450; the Smart Key Fob – FCC ID HYQ1EA (2019–2023) uses a CR2032; the Flip Key Fob (2011–2013) 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 GMC Sierra key fob battery is dying?
Signs your GMC Sierra 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 GMC Sierra key fob battery last?
A GMC Sierra 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 GMC Sierra key fob battery myself?
Yes, replacing a GMC Sierra key fob battery is a simple DIY task that takes under 5 minutes. You only need a new CR2032 or CR2450 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 GMC Sierra 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 CR2032 or CR2450 battery?
CR2032 or CR2450 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.
