Maintaining your Dodge vehicle involves more than just oil changes and tire rotations. Even small components like your key fob battery require occasional attention. A dead or dying key fob battery can be a major inconvenience, leaving you struggling to lock, unlock, or even start your car remotely. Fortunately, replacing your Dodge key fob battery is a straightforward task you can easily handle yourself. This guide will walk you through the process, saving you time and money compared to dealership service.
Before you find yourself locked out or unable to start your Dodge, it’s wise to understand how to replace your key fob battery. This simple DIY task requires minimal tools and can be completed in just a few minutes. Let’s dive into the steps for both modern and older style Dodge key fobs.
Tools You’ll Need for a Dodge Key Fob Battery Replacement
Before you begin, gather these simple tools:
- New Battery: You’ll likely need a CR2032 battery. This is a common 3V lithium coin cell battery and can be found at most drug stores, supermarkets, auto parts stores, and online retailers. Always double-check your owner’s manual or the old battery to confirm the correct type.
- Small Flathead Screwdriver or Pry Tool: This will be used to gently open the key fob casing. A small eyeglass screwdriver or a plastic pry tool designed for electronics works best to minimize scratches.
- Emergency Key (Integrated within your Fob): Your Dodge key fob likely has a mechanical emergency key that slides out. You’ll need to remove this key as part of the battery replacement process.
Replacing the Battery in a Modern Dodge Key Fob
If your Dodge key fob is a more recent model, it likely operates without needing to be inserted into the dashboard. Here’s how to change the battery in these types of fobs:
Step 1: Remove the Emergency Key
Locate the small release lever or button on the back or bottom of your key fob. Slide or press this lever to release the emergency key. Pull the key out and set it aside.
Step 2: Prepare to Open the Fob Casing
Examine the fob where the emergency key was located. You should see a small slot or seam. This is where you’ll insert your flathead screwdriver or pry tool to separate the two halves of the fob.
Step 3: Gently Pry Open the Key Fob
Insert the tip of your flathead screwdriver or pry tool into the slot and gently twist or pry. Work your tool around the seam if necessary to carefully separate the two halves of the key fob casing. Avoid using excessive force to prevent damaging the plastic.
Step 4: Access and Remove the Old Battery
Once the fob is open, you’ll see the internal electronics and the battery. Note the orientation of the battery – specifically, the position of the positive (+) side. Use your flathead screwdriver or pry tool to gently slide the old battery out of its housing.
Alt text: Opened modern Dodge key fob revealing the internal components and the CR2032 battery needing replacement.
Step 5: Install the New CR2032 Battery
Take your new CR2032 battery and slide it into the battery compartment. Ensure the positive (+) side is facing the correct direction, matching the orientation of the old battery or the markings in the battery compartment. Often, there are small “+” symbols to guide you.
Step 6: Reassemble the Key Fob
Carefully align the two halves of the key fob casing and press them firmly back together until they click securely into place. Ensure there are no gaps and the fob feels properly closed. Finally, slide the emergency key back into its slot until it clicks and locks.
Replacing the Battery in an Older Dodge Key Fob
For older Dodge vehicles, the key fob might have a slightly different design, sometimes requiring insertion into the dashboard to start the car. Here’s how to replace the battery in these older style fobs:
Step 1: Remove the Emergency Key
Similar to the modern fob, locate the release lever on the back of the older key fob to detach and remove the emergency key. Set the key aside.
Step 2: Locate and Remove the Phillips Head Screw
Flip the key fob over so the buttons are facing down and the rounded top is pointing upwards. Look for a tiny Phillips head screw, usually located on the back casing. Use a small Phillips head screwdriver to carefully remove this screw. Keep the screw in a safe place so you don’t lose it.
Step 3: Separate the Fob Halves
With the screw removed, you can now separate the two halves of the key fob. You might be able to pry them apart with your fingers, or you may need to use a flathead screwdriver or pry tool to gently separate them at the seam.
Step 4: Access and Replace the Battery
Once open, you may see an inner component. Carefully lift this inner piece to access the battery compartment underneath. Observe the battery’s orientation and use your tool to slide out the old battery.
Alt text: Disassembled older Dodge key fob with components separated to show the location of the battery for replacement.
Step 5: Insert the New CR2032 Battery
Place the new CR2032 battery into the compartment, ensuring the correct polarity (positive side up or as indicated).
Step 6: Reassemble the Key Fob
Carefully put the inner piece (if applicable) back into place, then align the two halves of the key fob casing. Press them together firmly. Reinstall the Phillips head screw and tighten it gently but securely. Finally, reinsert the emergency key into its slot.
Tips for Successful Key Fob Battery Replacement
- Battery Type Confirmation: Always confirm the correct battery type (usually CR2032) before purchasing. Check your owner’s manual or examine the old battery.
- Polarity Matters: Pay close attention to the battery polarity (+ and -) when removing and installing. Incorrect polarity can prevent the fob from working.
- Gentle is Key: Avoid using excessive force when prying open the fob casing to prevent damage.
- Test Your Fob: After reassembly, test your key fob to ensure it’s working correctly – lock, unlock, and remote start (if applicable).
- Battery Disposal: Dispose of the old lithium battery responsibly according to local regulations. Many retailers that sell batteries also offer battery recycling drop-off.
Replacing your Dodge key fob battery is a simple and cost-effective way to maintain your vehicle. By following these steps, you can avoid the inconvenience of a dead key fob and keep your Dodge running smoothly. For more helpful DIY car maintenance tips and guides, visit keyfobx.com.
