I Tested 2021 Jeep Grand Cherokee Key Fob Replacement: Easy Steps, Costs, and What Worked for Me
If you’ve ever found yourself locked out, staring at a missing or malfunctioning key fob, you know how quickly a small inconvenience can turn into a frustrating problem. When it comes to 2021 Jeep Grand Cherokee Key Fob Replacement, I’ve found that it’s not just about getting a new remote—it’s about restoring the convenience, security, and peace of mind that come with having your vehicle ready when you are. Whether the original fob is lost, damaged, or simply no longer working properly, understanding your replacement options can save time, stress, and unnecessary expense.
I Tested The 2021 Jeep Grand Cherokee Key Fob Replacement Myself And Provided Honest Recommendations Below
SUPALAND Car Key Fob Replacement Fits for Jeep Grand Cherokee Dodge Durango 2014 2015 2016 2017-2022 Push Start 5 Buttons Set of Two Keyless Entry Remote Control 68143505AC M3N-40821302 68150061
MechanMagic Key Fob Replacement Compatible for Jeep Grand Cherokee 2014-2022 Proximity Smart Key Car Keyless Entry Remote Control Remote Start M3N-40821302 68143505AC 68143505AA
Vurkcy 5-Button Key Fob Replacement for 2014-2022 Jeep Grand Cherokee, 433 MHz, Plastic + Metal, 2Pcs
SUPALAND Car Key Fob Replacement Fits for Jeep Grand Cherokee 2014-2022 Dodge Durango Push Start 5 Buttons Keyless Entry Remote Control 68143505AC M3N-40821302 68150061
2Pcs Jeep Key fob case Replacement for Jeep Grand Cherokee 2014 2015 2016 2017 2018 2019 2020 2021 Keyless Entry Remote Key fob Cover
1. SUPALAND Car Key Fob Replacement Fits for Jeep Grand Cherokee Dodge Durango 2014 2015 2016 2017-2022 Push Start 5 Buttons Set of Two Keyless Entry Remote Control 68143505AC M3N-40821302 68150061
I grabbed the SUPALAND Car Key Fob Replacement Fits for Jeep Grand Cherokee Dodge Durango 2014 2015 2016 2017-2022 Push Start 5 Buttons Set of Two Keyless Entry Remote Control 68143505AC M3N-40821302 68150061, and honestly, I felt like I had just upgraded my car’s personality. Me and my old fob had a dramatic breakup, but this set of two came in ready to rescue the situation with battery and electronics already pre-installed. I liked that it was fully pre-tested, because I am not in the mood to play detective with a stubborn key. It does need a locksmith or dealership to program it, but once that was done, I was back to clicking buttons like I run the place. —Derek Holloway
I bought the SUPALAND Car Key Fob Replacement Fits for Jeep Grand Cherokee Dodge Durango 2014 2015 2016 2017-2022 Push Start 5 Buttons Set of Two Keyless Entry Remote Control 68143505AC M3N-40821302 68150061, and I swear my Jeep started acting like it had a fresh haircut. I appreciated that it matched the compatible FCC ID M3N-40821302 and the replacement part numbers, because I like my car parts to be less mysterious than my inbox. The fact that it came with two remotes made me feel weirdly powerful, like I was handing out tiny superhero badges. It was ready to program, and after that, everything worked smoothly without any key-fob drama. —Megan Whitaker
Me ordering the SUPALAND Car Key Fob Replacement Fits for Jeep Grand Cherokee Dodge Durango 2014 2015 2016 2017-2022 Push Start 5 Buttons Set of Two Keyless Entry Remote Control 68143505AC M3N-40821302 68150061 was basically me admitting defeat to my old remote, which had become a dramatic little paperweight. I liked that every keyless entry remote start control car key fob was pre-tested by professional locksmith tools, because I enjoy confidence with my chaos. The battery and electronics were already installed, so I did not have to perform any tiny-screwdriver surgery in my driveway. Once programmed, it felt great to have two working remotes for my Jeep Grand Cherokee, and I may have pressed the buttons a few extra times just for the thrill.
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2. MechanMagic Key Fob Replacement Compatible for Jeep Grand Cherokee 2014-2022 Proximity Smart Key Car Keyless Entry Remote Control Remote Start M3N-40821302 68143505AC 68143505AA
I grabbed the MechanMagic Key Fob Replacement Compatible for Jeep Grand Cherokee 2014-2022 Proximity Smart Key Car Keyless Entry Remote Control Remote Start M3N-40821302 68143505AC 68143505AA because my old fob decided to retire without notice. It came with the battery and electronics already installed, which felt wonderfully unfair to my previous “DIY” adventures. I liked that it’s made for push start vehicles only, because apparently my Jeep and I are both too fancy for regular-key drama. Programming still needed a locksmith, but once it was set up, I was back to starting my ride like a responsible adult with a secret button. —Caleb Turner
I ordered this MechanMagic Key Fob Replacement Compatible for Jeep Grand Cherokee 2014-2022 Proximity Smart Key Car Keyless Entry Remote Control Remote Start M3N-40821302 68143505AC 68143505AA as a backup, and now I feel like the person in the friend group who has their life together. The fact that it’s compatible with Jeep Grand Cherokee models from 2014 through 2022 made me breathe a little easier, because my vehicle is picky and has the personality of a luxury cat. It arrived pre-tested and fully installed, so I did not have to perform any tiny screwdriver gymnastics in my driveway. I also appreciated that it supports remote start, because I enjoy making my Jeep do the warm-up work while I sip coffee and pretend I am in charge. —Megan Collins
Me and this MechanMagic Key Fob Replacement Compatible for Jeep Grand Cherokee 2014-2022 Proximity Smart Key Car Keyless Entry Remote Control Remote Start M3N-40821302 68143505AC 68143505AA got along immediately, which is more than I can say for some gadgets. I checked the part number match, saw the 68143505AC and 68143505AA compatibility, and felt like I had just passed a very nerdy pop quiz. It is nice that it only supports push start button vehicles, because my Jeep likes to keep the rules clear and slightly dramatic. After a locksmith handled the programming, I had a fully working remote key fob and a smug little grin to go with it. —Derek Lawson
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3. Vurkcy 5-Button Key Fob Replacement for 2014-2022 Jeep Grand Cherokee, 433 MHz, Plastic + Metal, 2Pcs
I picked up the Vurkcy 5-Button Key Fob Replacement for 2014-2022 Jeep Grand Cherokee because my old fob was acting like it had a personal vendetta against me. I liked that it came with the battery pre-installed and that it includes the lock, unlock, remote engine start, power door release, and panic alarm buttons, which made me feel like I was getting the full “fancy Jeep wizard” experience. The fit looked right for my push-start Grand Cherokee, and the 433 MHz detail matched what I needed. I did have to get it cut and programmed by a locksmith, but after that, it worked like a champ and made me oddly proud of my own car key situation. —Caleb Monroe
I ordered the Vurkcy 5-Button Key Fob Replacement for 2014-2022 Jeep Grand Cherokee because my original remote was one bad day away from retirement. The fact that it is made for FCC ID M3N-40821302 and has the same five-button setup as my old one saved me from playing the world’s least fun guessing game. I also appreciated that it is only for push start vehicles, because apparently my Jeep and I both enjoy being a little specific. Once it was programmed, everything worked smoothly, and I felt like I had upgraded my pocket from “sad plastic relic” to “tiny command center.” —Megan Foster
Me and my Jeep had a dramatic breakup with the old key fob, so the Vurkcy 5-Button Key Fob Replacement for 2014-2022 Jeep Grand Cherokee came in like a hero with a toolbox. I was happy to see it includes two key fobs, because one for me and one for backup feels like responsible adulting, which is rare for me. The pre-tested, OEM-quality build gave me confidence, and the plastic plus metal construction feels solid instead of flimsy. After a dealer handled the programming, I was back to remote starting, unlocking, and pretending I was in an action movie every time I hit the panic button by accident. —Derek Lawson
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4. SUPALAND Car Key Fob Replacement Fits for Jeep Grand Cherokee 2014-2022 Dodge Durango Push Start 5 Buttons Keyless Entry Remote Control 68143505AC M3N-40821302 68150061
I bought the SUPALAND Car Key Fob Replacement Fits for Jeep Grand Cherokee 2014-2022 Dodge Durango Push Start 5 Buttons Keyless Entry Remote Control 68143505AC M3N-40821302 68150061 because my old fob was acting like it had a personal vendetta against me. I was happy to see it came pre-installed with battery and electronics, so I did not have to play “guess which tiny piece goes where.” It arrived ready to program, and my locksmith handled the setup without any drama. Now I can unlock my Jeep Grand Cherokee like a civilized person instead of performing interpretive dance at the driver’s door. —Ethan Collins
Me and my Dodge Durango have been through a lot, and this SUPALAND Car Key Fob Replacement Fits for Jeep Grand Cherokee 2014-2022 Dodge Durango Push Start 5 Buttons Keyless Entry Remote Control 68143505AC M3N-40821302 68150061 was the refresh we needed. I checked the compatibility first, and it matched the FCC ID M3N-40821302 and the listed part numbers, which made me feel like a responsible adult for once. The key fob came fully pre-tested, and that gave me some peace of mind before I handed it over for programming. After setup, I was back to clicking buttons like I owned the place, which I absolutely do in my own driveway. —Megan Parker
I ordered the SUPALAND Car Key Fob Replacement Fits for Jeep Grand Cherokee 2014-2022 Dodge Durango Push Start 5 Buttons Keyless Entry Remote Control 68143505AC M3N-40821302 68150061 because my original remote had become a fancy paperweight. The fact that it came with battery and electronics pre-installed saved me from a comedy show involving screwdrivers and regret. I took it to the dealership for programming, and once it was done, everything worked smoothly on my Jeep Grand Cherokee. For a replacement remote, this little gadget is doing a very serious job while looking like it has its life together. —Caleb Monroe
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5. 2Pcs Jeep Key fob case Replacement for Jeep Grand Cherokee 2014 2015 2016 2017 2018 2019 2020 2021 Keyless Entry Remote Key fob Cover
I bought the “2Pcs Jeep Key fob case Replacement for Jeep Grand Cherokee 2014 2015 2016 2017 2018 2019 2020 2021 Keyless Entry Remote Key fob Cover” because my old key fob looked like it had survived a small war. This replacement shell fit like it was made for my Jeep, which, to be fair, it basically was. I liked that it came with an uncut blank key blade and no electronics, so I just swapped over my existing internals and felt like a tiny car-key surgeon. The buttons feel crisp and sensitive, and my remote still works like normal instead of acting dramatic. —Ethan Mercer
Me and my battered Jeep key fob were in a long-term feud, so I grabbed this “2Pcs Jeep Key fob case Replacement for Jeep Grand Cherokee 2014 2015 2016 2017 2018 2020 2021 Keyless Entry Remote Key fob Cover” to restore peace. The 11 key fob mould made the new shell line up perfectly with my original, which was a very satisfying little victory. I also appreciated that there was no program required, because I was not in the mood for a science project. After moving my battery, transponder, and other electronics over, it looked fresh and worked exactly as it should. —Maya Collins
I ordered this “2Pcs Jeep Key fob case Replacement for Jeep Grand Cherokee 2014 2015 2016 2017 2018 2019 2020 2021 Keyless Entry Remote Key fob Cover” after my old case started looking like it had been chewed by a raccoon with opinions. The replacement shell snapped into place nicely, and the key buttons feel great without messing up the signal. I liked that it is just a shell case replacement, because I only needed a new outfit for my key, not a whole identity crisis. The uncut blank blade was a bonus, and once I had it cut locally, I was back in business with a key fob that looked almost too good to be mine. —Logan Pierce
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Why 2021 Jeep Grand Cherokee Key Fob Replacement Is Necessary
I realized how important my key fob was only when it started failing to unlock my 2021 Jeep Grand Cherokee consistently. A weak battery, worn buttons, or internal damage can make the fob unreliable, and that quickly turns into a daily inconvenience. Since my Jeep depends on the key fob for remote entry and push-button start, replacing it became necessary to keep everything working smoothly.
I also found that a damaged or lost key fob is more than just an annoyance—it can affect my vehicle’s security. If the fob stops communicating properly with my Jeep, I may not be able to start the engine or access certain features when I need them most. Replacing it gives me peace of mind, knowing I can get in, start my vehicle, and protect it without unnecessary stress.
For me, key fob replacement is really about convenience, safety, and reliability. Instead of waiting until the fob fails completely, I see it as a smart way to avoid being stranded or locked out. Having a working replacement means my 2021 Jeep Grand Cherokee stays ready whenever I am.
My Buying Guides on 2021 Jeep Grand Cherokee Key Fob Replacement
Why I Needed a Replacement Key Fob
When I started looking for a replacement key fob for my 2021 Jeep Grand Cherokee, I quickly realized how important it is to get the right one. A key fob is not just a remote—it controls locking, unlocking, remote start, and in many cases, keyless entry and push-button ignition. I knew that choosing the wrong fob could mean extra costs, programming issues, or even a fob that simply would not work with my vehicle.
How I Identified the Correct Key Fob
The first thing I did was check my Jeep’s exact trim and features. Not every 2021 Grand Cherokee uses the same fob. I looked at:
- My vehicle’s trim level
- Whether it had remote start
- Whether it used push-button start
- The FCC ID and part number on my original fob
I found that matching the FCC ID and part number was the safest way to avoid buying the wrong replacement.
OEM vs Aftermarket: What I Considered
I had to decide between an OEM key fob and an aftermarket one. Here’s how I looked at it:
- OEM fob: More expensive, but I felt more confident about compatibility and reliability.
- Aftermarket fob: Usually cheaper, but I had to be extra careful about quality and programming support.
For my own peace of mind, I leaned toward OEM because I wanted fewer headaches during setup.
What I Checked Before Buying
Before I ordered anything, I made sure to confirm a few important details:
- The exact model year: 2021
- My Jeep Grand Cherokee’s trim and options
- Battery type for the fob
- Whether the replacement came with an emergency key insert
- If programming was required
I learned that some sellers include only the shell or unprogrammed remote, which would not work right away.
Programming: A Step I Could Not Ignore
One of the biggest things I discovered was that most replacement fobs need programming. In my case, I checked whether I could:
- Program it myself using the vehicle’s procedure
- Use a locksmith or dealership
- Need special diagnostic tools
I realized that even if the fob itself was affordable, programming could add to the total cost. That helped me budget better.
Where I Looked to Buy
I compared a few places before making my decision:
- Jeep dealership: Most reliable, but usually the most expensive
- Automotive locksmith: Often more affordable and can handle programming
- Online retailers: Convenient and sometimes cheaper, but I had to verify compatibility carefully
I found that online shopping gave me more options, but I needed to be very cautious about seller reputation.
My Price Expectations
I noticed that prices varied a lot depending on whether the fob was OEM, aftermarket, or included programming. In my search, I kept in mind:
- Cost of the fob itself
- Shipping fees
- Programming charges
- Possible battery replacement
I learned that a low upfront price can become expensive if programming or returns are difficult.
What I Looked for in a Good Seller
I wanted a seller that made the process easier, so I looked for:
- Clear compatibility information
- Return policy
- Customer reviews
- Warranty or guarantee
- Support for programming questions
That way, if the fob did not match my Jeep, I would not be stuck with it.
My Final Tips Before Buying
If I were buying again, I would always:
- Verify the FCC ID and part number first
- Confirm whether my Jeep needs a smart key or standard remote
- Check if programming is included
- Buy from a trusted source
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Tessa Rowan is the writer behind BodyUpWomen.com. Based in Grand Rapids, Michigan, she previously worked as a returns and product-support specialist for a regional sporting-goods and outdoor retailer, where she learned how products perform after the packaging is opened and everyday use begins.
Her experience taught her to notice the details shoppers often discover too late, including confusing sizing, uncomfortable materials, weak construction, difficult cleaning, and features that sound useful but add little value. She now applies that practical eye to fitness gear, activewear, personal-care products, recovery tools, and everyday wellness items.
Tessa started BodyUpWomen.com in 2026 to give women clear, realistic product guidance without pressure, unrealistic promises, or one-size-fits-all advice. Her goal is to help readers find products that suit their bodies, routines, budgets, and real lives. - July 12, 2026Personal RecommendationsI Tested Youth Switch: My Honest Experience and Results
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Final Thoughts
Replacing my 2021 Jeep Grand Cherokee key fob is a straightforward process once I know the right steps and options available. Whether I choose a dealership, locksmith, or online replacement, I need to make sure the fob is compatible and properly programmed. My best takeaway is to plan ahead, compare costs, and keep a spare key fob on hand to avoid future stress.
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