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How To Change Battery In Jeep Key Fob — 6 Simple Steps

Misery can come anytime without any sign, but skill can be a savior in many cases. For instance, knowing the key fob battery replacement process when it’s malfunctioning. So, do you know how to change the battery in the jeep key fob?

Replacing your jeep key fob battery requires the simplest tool, a screwdriver, and you have to use the screwdriver to pry open the fob, take the old battery out and insert the new one.

Understandably, this step shouldn’t prove to be too difficult. Yet bad stuff can happen at any time, and we can’t let this happen to our readers. Because of this, we have made it our goal to offer you all the information you need to assist you with your repair process.

Jeep Key Battery Replacement: Common Symptoms

There are some minor indications that could show if the battery is beginning to deteriorate. You might not have watched for these easy abnormalities, yet you could have serious issues with them later on. So, be aware of the warning signs noted here:

Delayed Response

When a key fob doesn’t respond rapidly, that’s a typical pointer that the battery is low. The key fob normally indicates the process was successful by turning on the dashboard light.

However, if the key takes some time to lock or unlock, the indicator light briefly flashes after a 5-10- second delay to confirm that the signal source is faulty, as the battery is nearly depleted.

Alternately, this situation isn’t due solely to a dead battery as it can also occur when remote switch directions have been damaged or altered.

Next time you replace your key fob battery, but it isn’t directing as fast as before, it’s best to speak to a mechanic who will reprogram the key.


When your key fob tightly needs to be pressed, then you may have a weak battery, even if you performed this action countless times in the past.

Occasionally, the key fob may stop functioning, or it can shut down due to an electric failure. Additionally, the ignition switch/park position region may have problems, such as a blown fuse.

Cracks near the battery’s installation location can damage its conducting wires and cause malfunctioning in the key fob. The device’s lifespan can be cut short as a consequence of this error.

After you press the unlock button more than six times, but the indicator light keeps flashing and then shuts off, your battery is completely drained. It would be best if you asked someone else to get a spare key for you.

Decreased Signal Range

Fobs generally operate within a range of receiving signals of around 20 m. If you notice this signal range is decreased over time, a slightly frayed battery is a viable explanation. It’s also wise to investigate whether your car’s range is also lessened in the rain.

Key fobs are strike-prone if they get wet, so on rainy days, if you must approach your car to change the exposure on the remote, consider doing, so after it’s left for prolonged periods in the rain.

How to Change Battery in Jeep Key Fob – 6 Simple Steps

Now it’s time to explore the key fob battery replacement process in detail. So, follow the below-mentioned steps:

Step 1: Insert The Screwdriver to Pop Open

Jeep key fobs are mostly made of plastic and snap together. So a screwdriver will easily work in the key fob’s seam and pops out the battery.

Do this by inserting the screwdriver’s tip in the key fob’s seam (the area near the key ring). However, you can also use a pry tool instead of the screwdriver as well.

Some Jeep Wrangler models, like the Renegade, have pre-wired metal ignition keys that pop open from the key fob.

To detach this pre-wired means, discover the metal pull tab on the key fob and slide it out before opening the key ring.

Once the key’s metal pull tab is removed, store it in a safe place, so it’s easy for you to get back to it.

Step 2: Apply Gentle Pressure on the Screwdriver

It’s difficult to master this step with this inspect your tactic softly, or it may be scraped by the screwdriver blade. So, gently push the screwdriver in one direction if you need help (never use force) or perhaps to soften the plastic.

Deploy the screwdriver tip between the door of the key fob and the seam itself and utilize the screwdriver while pinching the two sides of the opening between the palm of your hands.

Step 3: Remove the Battery

You would reveal the battery cover by prying it open. Carefully extract and discard the battery from the housing. Ensure that the housing is cleaned if there is any built-up debris.

Step 4: Insert the New Battery

Well, it’s time to put the brand-new battery in. . However, it is highly suggested that you take note of the orientation of the old battery immediately after removing it.

It’s also vital to recall the essential components of the circuit board. If their tiny components are loose or falling out, make certain to fix them appropriately.

On average, the negative side of the key fob battery faces down, and the positive side faces up. However, this is not a universal configuration though.

For this reason, it’s important for you to take into account the physical configuration of the old battery since the physical memory will serve as your primary guide for how to install the new battery.

Step 5: Reassemble the Key Fob

The need for a replacement is your primary concern while the rest should be attended to. Like with the battery, put the keypad housing onto the half with the keypad, followed by the circuit board inside the housing.

You’re likely to be done after a short reorganization. In the situation of reassembling, it is generally the most hassle-free if carrying out the following actions.

Place the half with the battery on the half with the keypad and circuit bear in place.

Step 6: Snap Plastic Casings Together

Connect two parts of your key fob now. Once the two halves have been quickly snapped together at the start, move gradually towards the key ring. Use a light level of pressure to ensure the housings of the key fobs at every edge are flush.

How to Reprogram Your Jeep Key Fob After Battery Replacement

Following the battery replacement in your key fob, reprogram the fob to guarantee it’s functioning smoothly again. If you do it yourself without a repair shop, follow the given instructions.

1. Get Inside the Car

There’s a brief timer placed somewhere in the vehicle key fob that you cannot downpour. Make sure you get into the car first with the remote and keys, and after that close the doors, so the system can operate as expected.

2. Turn on the Ignition

Yeah, it might seem pretty elementary, but you can find instances where people manage to blunder in not accessing the correct system in the beginning of the vehicle’s electrical system.

Figure out, once you sit correctly, you can start the electrical system of the car utilizing the ignition. Remember that you are not expected to start the electric motor, just make the ignition in sound system mode.

3. Press The Lock Button

As you turn the key to the ON stance, you must press the fob Security Lock button. You’ll need to switch off the key fob afterward. Then you’ll need to turn the key three more times.

The cycle should end after you have finished the cycle three times in the ON position. The program will save the data after you are done.

4. Be Alert to The Sound

After carrying out the process, there will be a buzzing sound. The sound will notify you of where you are in programming mode. You must be quick to press the lock button after five seconds to complete the procedure, or else you must repeat step 3.

5. Turn off the Ignition and Step Out

The ignition must be turned off after the programming procedure completes.  Be sure that the programming procedure ends after you take your keys out of your pocket. Inspect the unlock system to confirm whether the system works correctly. If yes, then step out of your vehicle.


Have any questions in mind? See some of the frequently asked questions and their answers below. Hopefully, this will give a more clarified idea about the common concerns among Jeep enthusiasts. 

How do I find out which battery my key fob uses?

Your key fob operates using the battery which is inside. Look to see if the battery is up or if there is writing on the item itself which begins CR, followed by a succession of figures.

Why does my key fob not work after replacing the battery Jeep?

Your key fob must work as long as the battery in it is alive. If the original battery in the fob is replaced, it can sometimes interfere with the connection between the remote key fob and vehicle (for example, the signals that unlock the doors). To fix this, you must reset the device.

Will the dead battery in key fob cause car not to start?

A keyless entry system will not activate till it reads this authorization signal from your key fob if you are holding it inside the automobile. If your key fob has lost power, it won’t be able to register when you are with the car and for that reason can not start from that point.

Will changing the battery on my key fob make it work again?

Yes, it works. However, you may want to have a new fob key if it’s not working following a replacement or if there is a problem with your automobile door lock.

Final Words

The jeep key fob can hardly be comprehended, but it’s a crucial element for the appeal of that keyless entry system. Yes, it is smart to consult with an automotive mechanic if you encounter a problem with your key fob.

If you know how to change the battery in a jeep key fob and get it replaced on its own can lead to saving money in the long run.

We’ve tried to increase the level of risk we will be offering you so that you may believe in your own dynamics the next time you require replacing the key fob battery.

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