Is your Mazda CX-5 key fob acting up? Perhaps you’re finding you need to get closer and closer to your car for it to unlock, or maybe it’s stopped working altogether. One of the most common culprits is a dead or dying key fob battery. Luckily, replacing the battery in your CX-5 key fob is a straightforward task you can easily do yourself in just a few minutes. This guide will walk you through the process step-by-step, saving you a trip to the dealership and keeping you on the road.
Before you start, you’ll need a few simple tools: a new CR2025 battery (these are widely available at drugstores, supermarkets, and online), and a small flathead screwdriver. Let’s get started and bring your key fob back to life!
Step 1: Locate the Notch and Separate the Fob Casings
Most Mazda CX-5 key fobs are designed to be easily opened. Look closely at the sides of your key fob and you’ll find a small notch or seam. This is where you’ll begin to separate the two halves of the fob.
Step 2: Use Your Screwdriver to Gently Pry Open the Fob
Take your small flathead screwdriver and carefully insert the tip into the notch you located in Step 1. Gently twist the screwdriver to begin prying the two halves of the key fob apart. Be patient and apply steady, even pressure. You shouldn’t need to force it. If it feels stuck, double-check you’re in the correct notch and try again. The goal is to separate the casings without damaging them.
Step 3: Remove the Old Battery
Once you’ve successfully separated the key fob casings, you’ll see the circuit board and the battery. The battery is usually a small, round, silver disc battery. Take note of how the old battery is positioned (positive side up or down) before removing it. You can often gently pry the old battery out with your fingernail or the tip of the screwdriver if needed.
Step 4: Install the New CR2025 Battery
Now, take your new CR2025 battery and install it in the key fob, ensuring it’s placed in the same orientation as the old battery you just removed. Double-check the positive (+) and negative (-) markings to make sure it’s correctly positioned.
Step 5: Reassemble Your Key Fob
With the new battery securely in place, carefully snap the two halves of the key fob casing back together. Press firmly until you hear or feel them click securely into place. Ensure there are no gaps and the fob feels solid when reassembled.
Step 6: Test Your Key Fob
That’s it! You’ve now successfully replaced your Mazda CX-5 key fob battery. Test your key fob by trying to unlock or lock your car from a distance. It should now be working perfectly again. If you are still experiencing issues, you may want to consult your Mazda owner’s manual or contact a qualified technician.
Replacing your Mazda CX-5 key fob battery is a simple and cost-effective way to maintain your vehicle. By following these easy steps, you can avoid the inconvenience of a dead key fob and ensure you always have reliable access to your car.
