Is your Mazda CX-5 key fob not working as reliably as it used to? Before you assume the worst, the most common culprit is often just a dead battery. Replacing the battery in your Mazda CX-5 key fob is a straightforward process you can easily do yourself, saving you time and money. This guide will walk you through identifying the correct battery and replacing it, ensuring your key fob is back in action in no time.
Identifying the Right Battery for Your Mazda CX-5 Key Fob
Mazda CX-5 key fobs typically use common and readily available batteries. For most models, you’ll likely need either a CR2032 or CR2025 battery. To be absolutely sure, you can use an online battery finder tool by entering your Mazda CX-5’s year, make, and model. These batteries are inexpensive, usually costing under $6, and can be purchased online or at most stores that sell batteries. Having the correct battery type is the first step to a successful replacement.
Step-by-Step Guide to Mazda CX-5 Key Fob Battery Replacement
The process for opening your Mazda CX-5 key fob varies slightly depending on whether you have a newer or older model. Here’s a breakdown for both:
For Newer Mazda CX-5 Models
Newer Mazda CX-5 key fobs are designed with a hidden key and a designated slot for easy opening.
- Locate the Hidden Key: Find the release button or latch on your key fob to detach the hidden mechanical key.
- Insert the Key: Once removed, you’ll see a small slot or notch revealed. Insert the end of the mechanical key into this slot.
- Pry Open the Case: Gently twist or lever the key within the slot. This should separate the two halves of the key fob casing.
For Older Mazda CX-5 Models
Older Mazda CX-5 key fobs might require a thin, flat object to carefully pry them open.
- Identify the Notch: Look for a small notch or seam running along the edge of your key fob case.
- Use a Flathead Screwdriver (or similar): Carefully insert a thin flathead screwdriver or a similar prying tool into the notch.
- Gently Pry Open: Apply gentle pressure to separate the two halves of the key fob case. Be careful not to use excessive force to avoid damaging the casing.
Replacing the Battery
Once you have opened the key fob case, the battery replacement process is similar for both types:
- Access the Battery: Carefully lift the circuit board within the key fob to reveal the battery compartment.
- Note Battery Orientation: Before removing the old battery, pay close attention to how it’s positioned in the case (+ and – sides). This ensures you install the new battery correctly.
- Remove the Old Battery: Gently remove the old battery. You might be able to pry it out with your fingertip or the same thin tool used to open the case.
- Insert the New Battery: Place the new battery into the compartment, ensuring it’s in the correct orientation as you noted earlier.
- Close the Case: Carefully reassemble the two halves of the key fob case, pressing firmly until they snap back together securely.
Testing Your Mazda CX-5 Key Fob After Battery Replacement
After replacing the battery and reassembling your key fob, test its functionality immediately. Press the buttons to lock, unlock, or activate other features of your Mazda CX-5. If the key fob still doesn’t work, double-check the battery orientation and ensure the battery contacts are clean and making good contact with the battery.
When Battery Replacement Isn’t Enough: Exploring Key Fob Replacement
In most cases, replacing the battery will solve the issue. However, if your Mazda CX-5 key fob still malfunctions after a battery change, you might need a complete key fob replacement. This could be due to other issues like internal damage or wear and tear. If you suspect you need a new key fob, explore options for Mazda CX-5 key fob replacement services to get a fully functional remote for your vehicle.
