Maintaining your 2012 Dodge Ram means staying on top of routine tasks, and that includes replacing the battery in your key fob. A dead or dying key fob battery can be a major inconvenience, leaving you struggling to lock, unlock, or even start your vehicle remotely. Luckily, swapping out the battery is a straightforward process you can easily handle yourself. This guide will walk you through identifying the correct 2012 Dodge Ram Key Fob Battery Size and provide step-by-step instructions for a quick and easy replacement.
There are generally two types of key fobs that came with the 2012 Dodge Ram, and while the battery size remains consistent, the opening procedure varies slightly. Let’s explore both to ensure you tackle yours with confidence.
Identifying Your 2012 Dodge Ram Key Fob Type
Before you begin, take a close look at your key fob.
Type 1: Standard Key Fob (Non-Dashboard Insert)
This type of key fob is designed to be carried in your pocket or purse and does not require insertion into the dashboard to start the vehicle.
Type 2: Older Style Key Fob (Dashboard Insert)
This older style fob needs to be inserted into the dashboard to initiate the vehicle’s ignition system. It often has a more rounded end compared to the standard fob.
Regardless of which type you have, the good news is they both typically use the same battery: the CR2032 battery. This common and readily available battery size ensures you can easily find a replacement at most auto parts stores, drugstores, and online retailers.
Replacing the Battery in a Standard 2012 Dodge Ram Key Fob (Type 1)
If you have the standard key fob, follow these simple steps to replace the battery:
Step 1: Locate and Slide the Release Lever
On the back of your key fob, you’ll find a small lever. Slide this lever to the side to release the emergency key. Pull out the emergency key and set it aside in a safe place.
Step 2: Prepare a Flat, Thin Tool
You’ll need a flat-sided object to gently pry open the key fob. A flathead screwdriver is ideal, but a thin plastic trim removal tool or even a sturdy guitar pick can work as well.
Step 3: Locate the Pry Slot and Gently Separate the Fob
Examine the bottom of the key fob, just above where the emergency key was housed. You should see a small, blank slot or seam. This is where you need to insert your flat tool. Carefully insert the tip of your tool into the slot and gently twist or pry to separate the two halves of the key fob. Take your time and avoid applying excessive force to prevent damage to the casing.
Step 4: Access and Remove the Old Battery
Once the two halves are separated, you’ll see the internal electronics and the battery. The 2012 Dodge Ram key fob battery size is a CR2032 button cell battery. Carefully use your flat tool to slide the old battery out of its housing. Pay close attention to the orientation of the battery – note which side is facing up (usually the positive “+” side). If unsure, look for “+” symbols molded into the plastic housing as a guide.
Step 5: Install the New CR2032 Battery
Take your new CR2032 battery and slide it into the battery housing, ensuring the correct orientation (positive side up, matching the original battery’s position).
Step 6: Reassemble the Key Fob
Carefully align the two halves of the key fob and press them firmly back together until they click securely. Finally, slide the emergency key back into its slot until it locks into place.
Replacing the Battery in an Older Style 2012 Dodge Ram Key Fob (Type 2)
For the older style key fob that inserts into the dashboard, the process is slightly different but still manageable:
Step 1: Release and Remove the Emergency Key
Just like with the standard fob, begin by sliding the lever on the back of the key fob to release and remove the emergency key. Set it aside.
Step 2: Locate and Remove the Phillips Head Screw
Flip the fob upside down so the buttons are facing away from you and the rounded end is pointing upwards. You’ll see a tiny Phillips head screw near the rounded end. 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 Key Fob Halves
With the screw removed, you can now use a flat-sided tool (like a flathead screwdriver) to gently pry apart the two halves of the key fob. Insert your tool into the seam and carefully twist or pry until the halves separate.
Step 4: Access and Replace the Battery
Once opened, you’ll see the inner workings of the fob. Carefully lift out the inner piece and flip it over to access the battery compartment. The 2012 Dodge Ram key fob battery size is again a CR2032. Use your tool to slide out the old battery, noting its orientation. Insert the new CR2032 battery in the same orientation.
Step 5: Reassemble and Secure the Fob
Carefully place the inner piece back into the fob casing. Align the two halves of the key fob and press them together. Replace the Phillips head screw and tighten it gently but securely. Finally, reinsert the emergency key.
Confirming the 2012 Dodge Ram Key Fob Battery Size
As mentioned, the 2012 Dodge Ram key fob battery size for both types of fobs is typically a CR2032. It’s always a good idea to double-check your owner’s manual to confirm the exact battery specification for your specific vehicle. However, CR2032 is the overwhelmingly common battery for these fobs.
By following these steps, you can easily replace your 2012 Dodge Ram key fob battery and restore full functionality to your remote. This simple maintenance task can save you time and prevent the frustration of a dead key fob when you need it most. Remember to dispose of your old battery properly at a designated recycling location.
