Open the key fob and remove the old battery

Most Chevy Equinox key fobs split into two halves along a seam that runs around the edge. Look for a small slot or groove on the side of the fob — this is where you insert a flat tool to pry the two halves apart. A coin, flathead screwdriver, or the edge of a butter knife works well. Insert the tool gently into the slot and twist slightly; the fob should pop open without force.

Once the fob is open, you will see a small circuit board with a battery sitting on top of it or held in a metal clip. The battery is typically a coin-cell type, usually a CR2032 or CR2035 — the number is printed on the battery itself. Note which side faces up (the positive side is usually marked with a + symbol). Gently lift or slide the battery out of its holder. If it is held by a metal clip, you may need to lift the clip slightly to free the battery.

Key Takeaways

  • Chevy Equinox key fobs open by prying along the seam with a flat tool like a coin or screwdriver.
  • The battery type is printed on the old battery itself — usually CR2032 or CR2035 — so check before you buy a replacement.
  • When you insert the new battery, the positive side (marked with a +) must face up toward the circuit board.
  • Test the fob before you close it completely by pressing each button to confirm the lock and unlock functions work.

Insert the new battery with the correct side facing up

Buy a replacement battery that matches the number on your old one. CR2032 batteries are the most common for Equinox fobs and cost between $3 and $8 at any pharmacy, grocery store, or hardware store. You can also order them online, but having one on hand means you can finish the job when ready.

Slide or place the new battery into the holder with the positive side (+) facing up toward the circuit board. This is the most common orientation for Equinox fobs. If the battery has a metal clip holding it, make sure the clip sits flat against the battery once it is in place. The battery should sit snugly without rattling.

Test the fob before closing it

Before you snap the two halves back together, press each button on the fob — lock, unlock, and panic if your model has one — and listen for a click or beep from your vehicle. If the buttons work and your Equinox responds, the battery is installed correctly. If nothing happens, remove the battery and flip it over; you may have inserted it with the positive side facing down.

If flipping the battery does not work, the battery itself may be defective. Remove it, set it aside, and try a fresh one from a different package or store. Defective batteries are rare but do happen.

Close the fob and check the seal

Once the buttons work, align the two halves of the fob so the seam is even all the way around. Press down firmly along the edges until you hear or feel a click. Start at one corner and work your way around the perimeter. The fob should feel solid and not flex or rattle when you squeeze it gently.

If the fob does not close evenly or feels loose, open it again and check that the battery is sitting flat in its holder and that no wires or clips are bent. Reposition the battery if needed and try closing the fob again.

What to do if the fob still does not work

If the fob buttons still do not work after you have installed a fresh battery with the correct orientation, the problem is likely not the battery. The circuit board, buttons, or internal contacts may be damaged. Water damage is a common cause — if your fob has been exposed to moisture, the contacts inside may be corroded even if the battery is new.

You can try cleaning the inside of the fob with a dry cotton swab or compressed air to remove dust or corrosion, but if that does not help, you will need a replacement fob. Contact a Chevy dealer or a local automotive locksmith for pricing. Aftermarket fobs are usually cheaper than dealer fobs but may require programming to your vehicle.

How long a new battery lasts

A fresh CR2032 or CR2035 battery typically lasts three to four years in normal use, though this varies based on how often you use the fob. Heavy use — pressing the buttons many times per day — will drain the battery faster. If your fob starts to work only intermittently or requires you to press buttons multiple times, the battery is running low and should be replaced soon.

Some Equinox models have a low-battery indicator light on the dashboard or a warning message that appears when the fob battery is weak. If you see this warning, replace the battery within a week or two to avoid being locked out of your vehicle.

Frequently Asked Questions

Can I use a different battery type if I cannot find the exact one?

No. CR2032 and CR2035 are not interchangeable — they have different thicknesses and voltages. Using the wrong type can damage the circuit board or cause the fob to malfunction. Always match the number printed on your old battery. If your store does not stock the exact type, order it online or try another store.

What if my key fob does not have a visible seam?

Some newer Equinox fobs use a different design. Look for a small button or latch on the back or side of the fob. Press or slide it to release the battery cover. If you cannot find an opening, check your vehicle's owner manual for the specific fob model, or contact a Chevy dealer for guidance.

Is it safe to open the fob myself, or should I take it to a dealer?

Opening and replacing the battery yourself is safe and takes about five minutes. You do not need special tools or training. A dealer will charge you $50 to $100 for the same job. The only reason to visit a dealer is if the fob is damaged or the battery replacement does not fix the problem.

Can I replace both fobs at the same time?

Yes. If you have a spare fob, you can replace its battery using the same steps. Replacing both at once means you will not have a dead fob later. Batteries are inexpensive, so doing both fobs at the same time is practical.