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How Do You Change A Battery In A Key Fob For A Jeep Renegade
Here is a quick guide on changing the battery in your key fob for a Jeep Renegade 2015-2021 model.
1. Flip over your key fob and locate the small hole on the back of the case. This is where you’ll insert your fingernail to release the mechanical key.
2. Right next to the keyhole is a small slot where you can pry open the case using a flathead screwdriver. Be gentle when doing this so as not to break anything.
3. Remove the key fob casing to see the battery compartment and other electronics.
4. Use a small screwdriver to remove the battery from its casing.
5. Insert the new battery ensure the positive and negative sides match the terminals before pushing it down firmly into the compartment.
6. Replace the case cover with an excellent snap to secure it. Don’t forget to return the mechanical key to its hiding spot.
How To Change Battery In Jeep Key Fob
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The Jeep key fob is part of your vehicles keyless entry system. Unlike in the olden days when manually locking and unlocking car doors was required, recent-year Jeep models with key fobs do this for you electronically. Hence, it would be beneficial to familiarize yourself with this innovative feature and to know when it is time for a battery replacement. This guide will surely help you achieve these objectives.
Here are seven steps on how to change the battery in a Jeep key fob:
If left unaddressed, a key fob with a poorly working battery will hinder your ability to lock and unlock your car doors remotely. Worse, it can trigger your car alarm or cause a no-start issue for your vehicle. Both are situations no one would ever want to be in, which makes knowing how to replace the battery in a Jeep key fob all the more significant.
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What Battery Does A Jeep Renegade Key Need
A CR2032 3v lithium battery powers a Jeep Renegade key fob. You can purchase this battery on , eBay, Walmart, and Target. Ensure their battery size and voltage match your specific needs. It is also best to examine their authenticity since there are numerous imitations on the market. You can test if it’s fake by using a voltage meter. Authentic CR2032 batteries should output 3 volts. If the battery outputs less than 3 volts, then it’s probably a counterfeit.
Recharge Or Change Jeep Batteries

A Jeep battery should last around 3-4 years with normal use. and if you are facing a key fob problem due to a bad jeep battery, The best solution is that recharge it again or simply purchase new batteries.
If you have been using batteries for many years, you should invest $200 to $300 to have better services in all of your electrical devices.
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Pop The Jeep Key Fob Open With A Screwdriver
Since it is made of plastic that snaps together, you will need a flathead screwdriver to open your key fob and access the battery. To do this, insert the screwdriver tip into the key fobs seam . Some Jeep owners prefer to use a pry bar tool.
For some Jeep models like the Jeep Renegade, it is necessary to remove the pull-out metal ignition key first before popping the key fob open. Do this by locating the metal switch on the key fob and sliding it over to release the metal ignition backup. Once pulled out, set the metal ignition key aside in a safe place.
The Key Fob Works Inconsistently
If your key fob is working appropriately, it should activate whenever a button is pressed. Some newer versions of key fobs are responsible for triggering the ignition system. They can send an electronic signal to the cars engine control module or be inserted into a slot on the dashboard to allow the driver to press a start button.
If this function is not consistent, it is usually a sign that your key fobs battery is wearing out. It would help if you found a replacement for the battery to allow the key fob to start working consistently.
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Apply Pressure On The Screwdriver As You Pry It Open
Depending on how delicately you can do this step, you can use the screwdriver tip on its own or with the help of soft material to reduce the risk of damaging the plastic. Position the screwdriver tip at the seam of your Jeep key fob. And with just the right amount of force, pry it open but be careful not to damage the key fobs plastic parts. Otherwise, you will not be able to put it back together later.
Use It According To The User Guide
User manuals are essential parts of any electronic device like jeep key fobs that help users to understand how to use the product or how it works.
When you dont understand the key fobs behavior, you should read the user guide book or see an adequate tutorial about that. This will help you to detect any key fob problems and ensure a quality user experience.
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What Kind Of Batteries Do Jeep Key Fobs Take
A Jeep key fob takes a CR2032 3-volt lithium battery, especially if built between 2015 and 2021. But this depends on your Jeep model. If you aren’t sure what type of battery your Jeep key fob uses, here are ways you can do to find it out:
- Open the battery cover on the back of your key fob and look at the battery type it needs.
- Check your owner’s manual for the exact information about your key fob. You may check a copy of it online if you misplaced its hard copy.
- Ask your dealership about the needed battery information of your specific key fob, or seek a mechanic to figure it out.
How To Change The Battery In A Jeep Key Fob
Your Jeeps trusted features and engineering design exist to ensure that each adventure is memorable. However, it is best to perform frequent maintenance to ensure that your Jeep is up and running. One of the reasons why your key fob may not function properly is a low battery. When this happens, the key fob battery might require an immediate replacement.
Here is a step-by-step guide on how you change the battery in a jeep key fob.
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Snap The Key Fob Housings Together
At this stage, the two halves of your key fob should be assembled. Now all you have to do is snap them gently but snugly together, beginning near the key ring and working towards the other end of the casings. Ensure the key fob housings are flush together at every edge this is especially important for key fobs with a pull-out metal ignition backup. Otherwise, the latter will not fit in the key fob when you replace it.
Jeep Grand Cherokee Key Fob Battery Replacement

If you want to replace the key fob battery for a 2015 to 2020 Jeep Grand Cherokee, you will need a small flathead screwdriver to pry apart the two halves of the key fob. You will also need a replacement coin cell, also known as the watch or button.
Once you have the screwdriver and the coin cell, you should follow these steps to replace the battery:
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How To Replace The Battery In Your Jeeps Key Fob
It would help if you understood how to replace the battery of your Jeeps key fob to avoid any inconveniences. The best thing is that the Jeep Grand Cherokee, Jeep Compass, Jeep Renegade, and Jeep Cherokee all use a similar key fob battery- the CR2032. You can get your replacement battery here.
Here is how you can replace the key fob batteries for various Jeep models.
Reprogram Your Jeep Key Fob
Usually, a change of battery is the only thing necessitated in resolving issues with a non-working Jeep key fob. However, there may be instances when this is not enough meaning you will need to reprogram your key fob to make it functional again. If you find yourself in this situation, then follow the below steps:
- Have your Jeep key fob programmer handy. You can get this from an authorized parts center or the Mopar® online store.
- Next, insert your key into the ignition and turn the ignition to the first position. Make sure to do this without starting the engine.
- Place the key fob programmer into your vehicles OBD/DLC port, which you can find under the steering column .
- Synchronously press your Jeep key fobs lock and unlock buttons for three seconds, then the unlock button for two seconds.
- Turn your ignition off, then remove the Jeep key fob programmer.
- Wait for two minutes before testing your key fob. By that time, it should already work.
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Wrong Key Fob Programming
Key fobs are small, portable, and fantastic devices that allow owners to control a vehicle remotely. A fob has two main functions: it must be able to store a security code that provides access to the jeep, and it must transmit that code to the vehicle to unlock the doors.
So, the key fob is all about programming. If something is wrong with the security code of the vehicle, the whole key fob system is abortive.
Simple Steps To Change The Battery In Your Renegade’s Keyless Entry Remote
A button cell battery installed inside the your keyless entry remote. Move the key out of the way if it is in the keyless entry remote.
Gently try to open your fob with pry tools. Replace 1 CR2032 battery with flat head screwdriver.
Replace old battery with fresh one CR2032. Be sure to connect the battery the right way around in a circuit. Your remote key fob will not work if you put battery wrong way.
Before assembling fobs case, check that all functions works by testing buttons on circuit board.
At this point squeeze fobs back cover together. Line your shell two halves together and put it together by hands from top to bottom. If your key fob shell firmly closed, we done. If not, repeat the last step.
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Reassemble The Key Fob Components
After replacing the battery, you will need to reassemble the other pieces of the key fob. Start with placing the keypad into the housing where it fits, then the circuit board into the keypad. You should be all set once done with these steps. When reassembling, it is easiest to do the following. Place the half with the battery on the half with the keypad and circuit board, according to Quadratec.
Do Jeep Renegades Break Down A Lot
According to Off Roadable, people have been reporting that their Renegade models are doing just fine. Some drivers have reached between 80,000 to 90,000 miles, while others have made it over 150,000 miles. However, the Jeep Renegade seems to be free of major mechanical problems for the most part.
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Jeep Key Replacement Experts
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Remove The Jeep Key Fob Battery From Its Housing

As you disassemble the key fob, you will see that it consists of five parts, as follows:
- The first half of the housing that has holes for the keypad and the key attached to it
- The second half of the housing that holds the battery in place
Before you remove the battery from its place, I recommend making a mental note of the polarity of the old battery so that you are not lost when you put in the replacement. Additionally, pay attention to the circuit board. If its tiny components are loose or falling out, make necessary adjustments to put it back in its original position.
Lastly, take care not to scratch or bend the metal electrical contacts if using a screwdriver to pry out the old battery.
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Reset Jeep Key Fob Programming
A common problem with older fobs is that their programming has become corrupted over time so that the buttons arent being recognized and/or processed correctly. You can simply solve this problem by resetting your jeep key fob.
but resetting key fobs in all the jeeps is not equal, and it varies from jeep wrangler to Grand Cherokee. I have provided a video about the jeep wrangler resetting process that might help you.
Using Multiple Wireless Devices
The jeep is the place where we tend to keep our electronics, but having multiple wireless devices in the vehicle can ensure quality riding, commuting, and jeep anti-theft system.
When youre driving, especially on the highway in Sport mode, distractions are everywhere by text messages, social media alerts, and news updates. All wireless devices like wifi, radio, and Bluetooth use different frequencies to keep the system alive.
Sometimes, the key fob faces problems in ensuring its services among all the frequencies. So, it could be one of the causes of key fob problems in jeep Cherokee, Grand Cherokee, Rubicon, or Willys.
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Jeep Compass Key Fob Battery Replacement
The Jeep Compass is one of Jeeps first-ever crossover SUVs. If you need to replace the key hob battery of your Jeep Compass, you need a flathead screwdriver and a CR2032 battery. Follow these steps to replace the rounded key fob battery of a 2017 to 2020 Jeep Compass:
What Is The Price To Replace A Jeep Key Fob
Buying replacement batteries and doing the procedures outlined in this guide in a timely manner will cost you less than $40. Doing the same thing, but after letting your key fob battery die out completely, may entail key fob reprogramming and expenses of up to $600. The worst possible case is having to replace the entire Jeep key fob.
Thankfully, you will not always have to pay full price if you do the latter. Check your coverage materials car insurance policy, car warranty, or automotive club membership to see if any clause entitles you to a free or discounted OEM key fob replacement.
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Insert The Replacement Battery
Typically, the negative side of the key fob battery is facing down, and the positive side is facing up. However, this may not be the case for all key fobs. For this reason, I advised earlier to take note of the polarity of the old battery that mental picture will serve as your foolproof guide on how to position the new battery.
On the bright side, some Jeep key fobs have labels printed into the battery socket providing instructions on how the battery should be fitted.