What battery your Equinox key fob needs and where to find it
Most Chevy Equinox key fobs use a CR2032 coin cell battery, the same flat, round battery found in watches and calculators. You can buy CR2032 batteries at any drugstore, supermarket, or hardware store for $3 to $8 for a pack of two or four. Some dollar stores and gas stations carry them too. The battery lasts roughly three to four years depending on how often you use the fob.
Before you buy, check your owner's manual or the back of your key fob itself — some older Equinox models use a CR2025 instead, which is slightly thinner. The number is printed on the battery, so if you already have one out, you can match it exactly. If you are unsure, bring the fob to the store and a staff member can tell you which one fits.
Key Takeaways
- Chevy Equinox key fobs almost always use a CR2032 coin cell battery, available at drugstores and supermarkets for a few dollars.
- The fob opens by prying the seam with a flat tool like a coin or flathead screwdriver — explore steady pressure, not a sudden jab.
- The battery sits in a metal holder with a plus sign facing up; slide it out sideways and drop the new one in the same way.
- Reassemble by pressing the two halves together until you hear or feel a click, then test all buttons before putting it away.
How to open your key fob safely
Look at the seam that runs around the edge of your fob — this is where the two plastic halves meet. You will see a small slot or groove along this seam on one side. Use a flat tool to pry gently at this point: a coin, a flathead screwdriver, or a plastic pry tool all work. Do not use a sharp knife, which can slip and cut your hand.
Insert the tool into the slot and explore steady, even pressure. The fob will pop open with a small click. If it does not budge after a few seconds of gentle pressure, try a different spot along the seam — sometimes the slot is easier to find on the opposite side. Once you feel it start to give, twist the tool slightly to widen the gap, then use your fingers to pull the halves apart the rest of the way.
Set the metal spring and any small plastic pieces on a clean surface where you can see them. These parts are tiny and straightforward to lose. Take a photo with your phone before you remove anything — this gives you a reference if you forget how it goes back together.
Removing the old battery and installing the new one
Inside the fob you will see a metal battery holder — a small rectangular frame with a plus sign (+) printed on the top. The old battery sits in this holder with the plus side facing up. Slide the battery out sideways toward the edge of the holder; it should come free with gentle pressure. If it is stuck, use your fingernail or a plastic tool to nudge it, but do not pry with anything sharp that could damage the holder.
Before you insert the new battery, check that the plus sign is facing up. Slide the new battery into the holder the same way the old one came out — sideways, with the plus side up. You will feel it settle into place. Do not force it; if it does not slide smoothly, flip it over and try again. The battery should sit flat and flush with the holder.
Putting the fob back together
Line up the two halves of the fob so the seams match all the way around. Press them together firmly and evenly — start at one end and work your way along the seam. You should hear or feel a small click when the halves lock. If one side pops back open, the battery holder or a spring may be in the way; open it again, check that everything is seated correctly, and try again.
Once the fob is closed, test each button: lock, unlock, and panic (if your fob has one). All three should work smoothly and the lights should respond. If a button does not work or feels stuck, open the fob again and make sure the battery is making good contact with the holder. Sometimes a battery that is not quite seated will cause one button to fail while others work fine.
Common mistakes that prevent the battery from working
The most common error is installing the battery upside down — the minus side facing up instead of the plus side. If your new fob does not work at all, open it and flip the battery. Another frequent mistake is not closing the fob completely; if the halves are not fully seated, the battery may lose contact with the holder and the fob will not respond.
A third mistake is buying the wrong battery size. If you grabbed a CR2025 when your fob needs a CR2032, it will be too thin and will rattle inside the holder without making contact. Check the number on the old battery before you throw it away, or bring it with you to the store to match it exactly.
If the fob still does not work after you have checked the battery direction and the fit, the battery holder itself may be damaged or corroded. This is rare, but if you see green or white buildup inside the holder, try cleaning it gently with a dry cotton swab before installing a new battery.
When to replace the battery again
A fresh CR2032 battery typically lasts three to four years in a key fob. You will notice the fob starting to fail before it dies completely — the buttons may require harder presses, or the range may shrink so you have to stand closer to the car. When this happens, it is time to replace the battery again using the same steps.
If you replace the battery and the fob still does not work, or if it fails again within a few months, the problem may be with the fob itself rather than the battery. At that point, contact a Chevy dealer or a local locksmith who can test the fob and tell you whether it can be repaired or needs to be replaced.
Frequently Asked Questions
Can I use a different battery size if I cannot find a CR2032?
No. A CR2025 is too thin and will not make proper contact. A CR2016 is even thinner. Using the wrong size wastes money and leaves you with a non-working fob. Stick with the exact battery number printed on your old battery or listed in your owner's manual. Any drugstore can order the correct size if they do not have it in stock.
What do I do with the old battery?
CR2032 batteries are safe to throw in the trash in most places, but some communities have battery recycling programs. Check your local waste management website or call your city to ask. Many drugstores and Best Buy locations also accept used batteries for recycling at no cost.
Why does my fob work sometimes but not other times after I replace the battery?
This usually means the battery is not making solid contact with the holder. Open the fob and make sure the battery is sitting flat and flush in the metal holder, with the plus side facing up. If the holder looks bent or corroded, cleaning it gently with a dry cotton swab may help. If the problem continues, the holder may need professional repair.
Can I replace the battery myself or do I need to go to a dealer?
You can do this yourself in about five minutes with just a coin or screwdriver and a new battery. There is no risk of damaging the fob if you follow the steps carefully. A dealer will charge $50 to $100 for the same job, so replacing it yourself saves money and time.
How do I know if my key fob battery is dead or if the fob itself is broken?
Replace the battery first — that solves the problem nine times out of ten. If the fob still does not work after you install a fresh battery and test all the buttons, the fob itself may be damaged. At that point, a locksmith or dealer can test it and tell you whether it can be fixed or needs to be replaced.