How to Replace the Key Battery for a Cadillac?

[DiNolan]

Method for replacing the key battery of a Cadillac: There is a small notch at the top of the remote key. Use a small screwdriver to pry it open along the edge. Once opened, you will see the battery. Remove the old one and replace it with a new battery. Be sure not to use any metal tools for removal. The Cadillac key battery specification is CR2032. The Cadillac XTS is a mid-to-large-sized sedan under the Cadillac brand, with body dimensions of 5131mm in length, 1852mm in width, and 1501mm in height, and a wheelbase of 2837mm. The Cadillac XTS is equipped with a 2.0-liter turbocharged engine across all models, delivering 269 horsepower and a maximum torque of 353 Nm, paired with a 6AT transmission.

[VanElias]

I remember doing it myself when replacing the key battery for my Cadillac ATS last year, and the process was quite simple. First, you need to locate the seam on the key fob casing—there's usually a small latch on the side or back. Use a thin tool like a coin or screwdriver to gently pry it open, but don’t apply too much force to avoid scratching. Once opened, you’ll see a round coin-cell battery, typically a CR2032 model. I bought a new one at a hardware store for just a few bucks. When removing the old battery, pay attention to the positive and negative orientation, and insert the new battery the same way, making sure it’s securely in place. Then, snap the casing back together until you hear a click, indicating it’s locked. After replacement, test the key by pressing the unlock button to check responsiveness—if it doesn’t work, the battery might be inserted incorrectly. DIY saves both the trip to the dealership and over a hundred bucks in labor fees. I recommend keeping a small toolkit at home for handling such minor fixes.

[DiLaura]

I just replaced the key battery for my girlfriend's Cadillac XTS. At first glance, she thought it would be difficult, but it turned out to be super easy. I learned the steps from an online video: there's a seam on the back or side of the key, and you can slowly pry it open with a small card or credit card—just don't rush it. Inside, the battery is a small round one called a CR2032, which you can buy at any supermarket or auto parts store. Simply take out the old battery, replace it with the new one, making sure the positive side matches the original position and isn't installed backward. When pressing the cover back on, you need to apply a bit more force to ensure it snaps securely into place. Tested the unlock function—it works perfectly, saving both time and money. The whole process took just five minutes, even faster than a professional shop. There's nothing to be afraid of doing it yourself; even beginners can give it a try.

[LeThomas]

When replacing the key battery for my dad's Cadillac CT5, I handled it carefully to avoid damaging the interior. The key shell usually has plastic clips that need to be gently pried open—avoid using metal tools to prevent scratches. The battery model is CR2032, a common size, so make sure not to buy the wrong one. Avoid touching the circuit board during replacement. When reassembling, press firmly and test the functions to ensure everything works properly, ensuring safety and no risks.

[McLucy]

I often change the Cadillac key battery myself to save a few dozen bucks. Just pry open the key, replace it with a CR2032 battery bought from the supermarket, and you're good to go.