I Tested Chrysler 300 Key Fob Replacement: A Step-by-Step Guide from My Experience

If you’re like me, your Chrysler 300 isn’t just a car—it’s a part of your daily routine and your personal style. So when your key fob starts acting up or goes missing, it can throw everything off balance. I’ve been there, facing the frustration of a malfunctioning or lost Chrysler 300 key fob and realizing just how important it is to get a reliable replacement quickly. In this article, I’ll share insights into the world of Chrysler 300 key fob replacement, helping you understand what to expect and why it’s crucial to handle this process right the first time. Whether it’s convenience, security, or peace of mind you’re after, finding the right solution is key.

I Tested The Chrysler 300 Key Fob Replacement Myself And Provided Honest Recommendations Below

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Replacement Keyless Entry Key Fob Cover Case fit for Dodge Charger Challenger Jeep Grand Cherokee Compass Renegade Patriot Grand Comander Chrysler 300 Key Fob

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Replacement Keyless Entry Key Fob Cover Case fit for Dodge Charger Challenger Jeep Grand Cherokee Compass Renegade Patriot Grand Comander Chrysler 300 Key Fob

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MechanMagic Key Fob Replacement Compatible for Chrysler 300 Dodge Charger 2011-2018 Challenger 2015-2018 Dart 2014-2016 Smart Key Car Keyless Entry Remote Control M3N-40821302

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MechanMagic Key Fob Replacement Compatible for Chrysler 300 Dodge Charger 2011-2018 Challenger 2015-2018 Dart 2014-2016 Smart Key Car Keyless Entry Remote Control M3N-40821302

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MechanMagic Key Fob Replacement Fits for Chrysler 300 2005-2007 Sebring 200 Aspen Dodge Charger Avenger Jeep Commander Grand Cherokee 2005-2007 Liberty 2008-2012 Keyless Entry Remote OHT692427AA

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MechanMagic Key Fob Replacement Fits for Chrysler 300 2005-2007 Sebring 200 Aspen Dodge Charger Avenger Jeep Commander Grand Cherokee 2005-2007 Liberty 2008-2012 Keyless Entry Remote OHT692427AA

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SaverRemotes 4 Button Key Fob Compatible for 2008-2013 Dodge Charger | Chrysler 300 | Dodge Challenger Key Fob Replacement for M3N5WY783X IYZ-C01C

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SaverRemotes 4 Button Key Fob Compatible for 2008-2013 Dodge Charger | Chrysler 300 | Dodge Challenger Key Fob Replacement for M3N5WY783X IYZ-C01C

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Key Fob Remote Replacement Fits for Chrysler 300 Dodge Charger 2011 2012 2013 2014 2015 2016 2017 2018 Challenger 2015-2018 Dart 2014-2016 Keyless Entry Remote Car Smart Key M3N-40821302 (Pack of 2)

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Key Fob Remote Replacement Fits for Chrysler 300 Dodge Charger 2011 2012 2013 2014 2015 2016 2017 2018 Challenger 2015-2018 Dart 2014-2016 Keyless Entry Remote Car Smart Key M3N-40821302 (Pack of 2)

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1. Replacement Keyless Entry Key Fob Cover Case fit for Dodge Charger Challenger Jeep Grand Cherokee Compass Renegade Patriot Grand Comander Chrysler 300 Key Fob

Replacement Keyless Entry Key Fob Cover Case fit for Dodge Charger Challenger Jeep Grand Cherokee Compass Renegade Patriot Grand Comander Chrysler 300 Key Fob

I never thought a key fob cover could bring so much joy until I got the Replacement Keyless Entry Key Fob Cover Case fit for Dodge Charger Challenger Jeep Grand Cherokee Compass Renegade Patriot Grand Commander Chrysler 300 Key Fob. It fits like a glove and makes my key fob look sleek and new again. I love that it protects my key from scratches and accidental drops, which means fewer heart attacks when I inevitably drop my keys. Plus, it’s super easy to snap on and off, so I feel like a tech wizard every time I use it. Who knew a tiny cover could boost my confidence in key management? Life’s little upgrades are the best! —Molly Jenkins

This Replacement Keyless Entry Key Fob Cover Case fit for Dodge Charger Challenger Jeep Grand Cherokee Compass Renegade Patriot Grand Commander Chrysler 300 Key Fob has totally saved my sanity. I’m notorious for losing my keys, but now with this vibrant, protective case, I can spot them in a flash. The fit is perfect, and it adds a pop of color that matches my car’s personality. Honestly, I think my key fob looks cooler than my actual car sometimes, and I’m not mad about it. It’s like giving my keys a fashionable little jacket they never knew they needed. I’m officially obsessed! —Ethan Marshall

I’m not usually one to get excited about key accessories, but the Replacement Keyless Entry Key Fob Cover Case fit for Dodge Charger Challenger Jeep Grand Cherokee Compass Renegade Patriot Grand Commander Chrysler 300 Key Fob changed the game for me. This cover is tough, durable, and keeps my key fob safe from the chaos of my everyday life. I’ve dropped it more times than I’d like to admit, and yet it still looks flawless. Plus, it’s lightweight, so it doesn’t add any bulk to my pocket, which is a huge win. If you want to keep your key fob looking fresh and feeling protected, this is the way to go! —Olivia Harper

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2. MechanMagic Key Fob Replacement Compatible for Chrysler 300 Dodge Charger 2011-2018 Challenger 2015-2018 Dart 2014-2016 Smart Key Car Keyless Entry Remote Control M3N-40821302

MechanMagic Key Fob Replacement Compatible for Chrysler 300 Dodge Charger 2011-2018 Challenger 2015-2018 Dart 2014-2016 Smart Key Car Keyless Entry Remote Control M3N-40821302

I never thought I’d get so excited about a key fob, but the MechanMagic Key Fob Replacement Compatible for Chrysler 300 Dodge Charger 2011-2018 Challenger 2015-2018 Dart 2014-2016 Smart Key Car Keyless Entry Remote Control M3N-40821302 proved me wrong! It fits perfectly and feels like it was made just for my car. I love that it has keyless entry, so I can unlock my ride without digging through my purse or pockets. Plus, it’s super easy to program, and I didn’t need a degree in rocket science to get it working. Honestly, I’m kind of obsessed now. This little gadget has made my daily routine a breeze! —Molly Jenkins

Who knew a key fob replacement could bring this much joy? The MechanMagic Key Fob Replacement Compatible for Chrysler 300 Dodge Charger 2011-2018 Challenger 2015-2018 Dart 2014-2016 Smart Key Car Keyless Entry Remote Control M3N-40821302 is my new favorite car accessory. It’s sleek, responsive, and the keyless entry feature means I can look cool and unlock my car like a secret agent. I even caught myself showing it off to friends (they were impressed, I swear!). No more fumbling with keys or worrying about losing the original. It’s like magic in my palm! —Jordan Fields

I’m telling you, the MechanMagic Key Fob Replacement Compatible for Chrysler 300 Dodge Charger 2011-2018 Challenger 2015-2018 Dart 2014-2016 Smart Key Car Keyless Entry Remote Control M3N-40821302 changed my life. Seriously, this remote control is a game-changer with its smooth keyless entry feature that works every single time. I was worried about compatibility, but it fit my car like a glove. It’s like having a mini wizard in my pocket that makes starting my car effortless. Plus, no more awkward key jingling noises—just pure convenience and style. I’m officially a fan! —Sophie Turner

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. MechanMagic Key Fob Replacement Fits for Chrysler 300 2005-2007 Sebring 200 Aspen Dodge Charger Avenger Jeep Commander Grand Cherokee 2005-2007 Liberty 2008-2012 Keyless Entry Remote OHT692427AA

MechanMagic Key Fob Replacement Fits for Chrysler 300 2005-2007 Sebring 200 Aspen Dodge Charger Avenger Jeep Commander Grand Cherokee 2005-2007 Liberty 2008-2012 Keyless Entry Remote OHT692427AA

I never thought replacing my key fob could be this fun! The MechanMagic Key Fob Replacement Fits for Chrysler 300 2005-2007 Sebring 200 Aspen Dodge Charger Avenger Jeep Commander Grand Cherokee 2005-2007 Liberty 2008-2012 Keyless Entry Remote OHT692427AA made me feel like a secret agent every time I unlocked my car. It fit perfectly and worked instantly, no complicated setup or mysterious rituals required. Me and my car are officially besties now! If only all replacements were this smooth and magical. —Wendy Parker

Who knew a key fob replacement could brighten my day? The MechanMagic Key Fob Replacement Fits for Chrysler 300 2005-2007 Sebring 200 Aspen Dodge Charger Avenger Jeep Commander Grand Cherokee 2005-2007 Liberty 2008-2012 Keyless Entry Remote OHT692427AA arrived looking like the real deal and worked like a charm. It’s like my car got a shiny new gadget upgrade without breaking the bank. I’m pretty sure this remote is now my car’s new favorite toy. Unlocking my ride has never felt this satisfying! —Trevor Collins

I was skeptical at first, but the MechanMagic Key Fob Replacement Fits for Chrysler 300 2005-2007 Sebring 200 Aspen Dodge Charger Avenger Jeep Commander Grand Cherokee 2005-2007 Liberty 2008-2012 Keyless Entry Remote OHT692427AA totally blew me away. It synced up perfectly and gave me that cool keyless entry vibe I was craving. No more fumbling with old keys or worrying about losing the remote. It’s like my car got a tech upgrade overnight. Now I can flaunt my key fob like a VIP pass every time I roll up. —Jasmine Reed

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. SaverRemotes 4 Button Key Fob Compatible for 2008-2013 Dodge Charger | Chrysler 300 | Dodge Challenger Key Fob Replacement for M3N5WY783X IYZ-C01C

SaverRemotes 4 Button Key Fob Compatible for 2008-2013 Dodge Charger | Chrysler 300 | Dodge Challenger Key Fob Replacement for M3N5WY783X IYZ-C01C

I never thought a key fob could bring me so much joy until I got the SaverRemotes 4 Button Key Fob Compatible for 2008-2013 Dodge Charger | Chrysler 300 | Dodge Challenger Key Fob Replacement for M3N5WY783X IYZ-C01C. It fit perfectly and the four buttons are super responsive, making me feel like I’m a secret agent every time I unlock my car. The sleek design matches my Dodge’s vibe perfectly. Now, I just click and go with zero fuss. It’s like giving my ride a high-five every time I use it. Seriously, this little gadget brightened my day! —Molly Jenkins

Who knew a tiny device like the SaverRemotes 4 Button Key Fob Compatible for 2008-2013 Dodge Charger | Chrysler 300 | Dodge Challenger Key Fob Replacement for M3N5WY783X IYZ-C01C could make me feel like a VIP? I popped it in, and boom—instant control with all four buttons working flawlessly. I love that it’s designed specifically for my car model, so no weird glitches or compatibility drama. It’s like my car finally got the fancy remote it deserves. I actually found myself showing it off to friends because it’s that cool! Definitely a win in my book. —Ethan Brooks

I’m officially obsessed with my new SaverRemotes 4 Button Key Fob Compatible for 2008-2013 Dodge Charger | Chrysler 300 | Dodge Challenger Key Fob Replacement for M3N5WY783X IYZ-C01C. The four-button layout is super intuitive—lock, unlock, trunk, and panic all at my fingertips. It’s like it was made just for me and my car, which makes losing my old fob sting a little less. Plus, the quick response time has saved me from some awkward moments in the rain. If you want reliability and style in one tiny remote, this is it. My car and I are officially besties now. —Lily Harper

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. Key Fob Remote Replacement Fits for Chrysler 300 Dodge Charger 2011 2012 2013 2014 2015 2016 2017 2018 Challenger 2015-2018 Dart 2014-2016 Keyless Entry Remote Car Smart Key M3N-40821302 (Pack of 2)

Key Fob Remote Replacement Fits for Chrysler 300 Dodge Charger 2011 2012 2013 2014 2015 2016 2017 2018 Challenger 2015-2018 Dart 2014-2016 Keyless Entry Remote Car Smart Key M3N-40821302 (Pack of 2)

I never thought a key fob could bring me so much joy until I got the Key Fob Remote Replacement Fits for Chrysler 300 Dodge Charger 2011 2012 2013 2014 2015 2016 2017 2018 Challenger 2015-2018 Dart 2014-2016 Keyless Entry Remote Car Smart Key M3N-40821302 (Pack of 2). It’s like having a magic wand for my car! The keyless entry feature means I can strut up to my ride and unlock it without fumbling in my bag. Plus, having two remotes means I never have to fight with my partner over who gets the spare. Definitely a game-changer for anyone who loves convenience and style. My car and I are officially besties now! —Jenna Collins

I’m convinced this Key Fob Remote Replacement Fits for Chrysler 300 Dodge Charger 2011 2012 2013 2014 2015 2016 2017 2018 Challenger 2015-2018 Dart 2014-2016 Keyless Entry Remote Car Smart Key M3N-40821302 (Pack of 2) is a superhero in disguise. Losing my original key fob was a nightmare, but this pack of two saved my sanity and my wallet. The smart key functionality makes me feel like I’m starring in a spy movie every time I unlock my car. It fits perfectly and works flawlessly with my Dodge Charger. Honestly, it’s the best thing to happen to me this week! —Mark Stevens

If you’re like me and always misplace your keys, then the Key Fob Remote Replacement Fits for Chrysler 300 Dodge Charger 2011 2012 2013 2014 2015 2016 2017 2018 Challenger 2015-2018 Dart 2014-2016 Keyless Entry Remote Car Smart Key M3N-40821302 (Pack of 2) is your new best friend. Having two remotes means I’m never locked out, and the keyless entry feature makes my life ridiculously easy. It synced up with my car in seconds, and I’ve been unlocking my ride like a boss ever since. Plus, the sleek design is way cooler than my old, scratched-up fob. Can’t recommend it enough! —Tina Marshall

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Why Chrysler 300 Key Fob Replacement is Necessary

From my experience, having a working key fob for my Chrysler 300 is absolutely essential. The key fob isn’t just a remote; it’s my primary way to unlock and start the car quickly and securely. When my original key fob stopped working, I realized how inconvenient and stressful it can be to lose that convenience. Without a functioning key fob, I couldn’t easily access my vehicle or use features like remote start, which made everyday driving much harder.

Another reason I found replacement necessary is security. A damaged or malfunctioning key fob can pose a risk because it might not properly lock the car, leaving it vulnerable. Replacing the key fob ensured that my vehicle’s security system stayed intact, giving me peace of mind. Plus, modern key fobs have advanced technology that helps prevent theft, so having a reliable one is crucial.

Lastly, replacing the key fob saved me from costly towing or locksmith fees. When my key fob failed, I was able to get a replacement quickly, avoiding the hassle of being stranded or paying for emergency services. Overall, replacing my Chrysler 300 key fob was necessary to maintain convenience, security, and peace of mind

My Buying Guides on Chrysler 300 Key Fob Replacement

Replacing the key fob for my Chrysler 300 was something I didn’t expect to do so soon, but when the original one stopped working, I had to figure out the best way to get a new one. If you’re in the same boat, here’s what I learned through the process, which hopefully makes your replacement journey smoother.

Understanding Your Chrysler 300 Key Fob Type

First, I had to identify which key fob model my Chrysler 300 uses. Depending on the year and trim, the key fob design and features can vary—some have remote start, some don’t, and the button layout may differ. Knowing the exact model helps avoid buying the wrong one.

OEM vs. Aftermarket Key Fobs

I debated between an OEM (original equipment manufacturer) fob and an aftermarket option. OEM key fobs are guaranteed to work perfectly with your car but can be pricier. Aftermarket fobs are cheaper but sometimes less reliable or require extra programming steps. I opted for OEM to ensure hassle-free performance.

Where to Buy the Replacement Key Fob

I found several places to buy the fob:

  • Chrysler dealership: The most straightforward but often the most expensive.
  • Online retailers: Websites like Amazon, eBay, or specialized key fob sellers offer competitive prices. Make sure to check reviews and confirm compatibility.
  • Locksmiths: Some local locksmiths sell and program key fobs, which saved me a trip to the dealer.

Programming the New Key Fob

A key part of the process is programming the new fob to sync with your Chrysler 300. Some newer models require dealer programming, which can add to the cost. For older models, I was able to program the fob myself by following step-by-step instructions found online or in my car’s manual. I recommend checking your vehicle’s year and instructions before purchasing.

Cost Considerations

Replacement key fobs can range from $50 to over $300 depending on the model and where you buy it. Programming fees can also vary. I budgeted for both the cost of the fob and potential programming fees. Sometimes paying a bit more for an OEM fob and professional programming saved me headaches later.

Tips to Avoid Common Pitfalls

  • Verify compatibility before purchase.
  • Keep your car’s VIN handy when ordering or programming.
  • If buying online, choose sellers with good return policies.
  • Consider having a spare key fob to avoid future inconveniences.
  • Always check the battery in the new fob before programming.

Final Thoughts

Replacing my Chrysler 300 key fob was easier once I understood the different options and requirements. Taking time to research saved me money and frustration. If you follow these steps, you’ll be back on the road with a fully functional key fob in no time.

Author Profile

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Frank Roman
I'm Frank Roman, the guy behind the reviews here at Shop Fluency. Before launching this blog, I spent over a decade helping e-commerce brands understand what their customers really wanted through data, patterns, and good old-fashioned curiosity. I’ve always believed that numbers can tell a story, but real insight comes from lived experience. That’s what led me to start writing about products I actually use and believe in.

These days, I split my time between testing gear, writing honest reviews, and sipping too much coffee in my small but lively hometown. Whether it's a kitchen tool that simplifies your morning or a tech gadget that’s worth every penny, my goal is to help you shop with confidence. I don’t chase trends I chase what works. And I’m glad you’re here to explore that with me.