Decoding M3N32337100 & IC 7812A-32337100 Specs
When you are holding a dead key fob, the numbers on the back are your roadmap to a working replacement. As a manufacturer, we know that precision matters. For this specific Chevrolet 5-button remote, the critical identifiers are FCC ID: M3N32337100 and IC: 7812A-32337100. These aren’t just random codes; they dictate the radio frequency and protocol your vehicle’s receiver expects. If these numbers don’t match your original unit exactly, the new remote simply will not communicate with your car, no matter how many times you try to program it.

Understanding the 5-Button Layout
This specific configuration is designed for maximum utility. The 5-button layout typically includes:
- Lock: Secures all doors.
- Unlock: Opens the driver or all doors.
- Remote Start: Essential for warming up or cooling down your Chevy before you get in.
- Trunk/Hatch Release: Pop the back open remotely.
- Panic: Activates the alarm for safety.
It is crucial to verify that your original key has these exact buttons. If your current remote lacks the remote start button or has a different trunk icon, you might need a different part number, even if the shape looks similar.

Why 315 MHz Frequency Is Non-Negotiable
In the world of automotive electronics, frequency is the language your car speaks. This Chevrolet key fob operates strictly at 315 MHz. Many newer or different regional models might use 433MHz or 434MHz, but they are not interchangeable. A 315 MHz receiver inside your Silverado or Suburban will completely ignore a signal sent at 433 MHz. We manufacture these units to strictly adhere to the 315 MHz standard to ensure instant response times and reliable range.
Verifying FCC ID M3N32337100 Matches
Before you buy, flip your old key over. You might need a magnifying glass, but you need to find the FCC ID M3N32337100. This code confirms the device has been certified to work with specific GM security systems. If your key is lost, you can often find this information by checking your vehicle’s VIN with a dealer or looking at the specs of a spare key if you have one.
GM OEM Cross-Reference Numbers
To make your search easier, this specific fob is often compatible with several GM part numbers. If your original key lists any of the following, our Keylessbest replacement is the correct fit:
- 13577770
- 22881480
- 84540865
Battery Type and Lifespan
Powering this unit is a standard CR2032 coin cell battery. We ship our remotes with a fresh battery installed, but it’s good to know for future maintenance. These lithium cells are readily available and typically provide 3 to 5 years of reliable service depending on how often you use the remote start and lock functions.
Vehicle Compatibility List (2014–2020)
We manufacture our Keylessbest Chevrolet 5buttons 315MHz FCC ID: M3N32337100 IC: 7812A-32337100 remotes to meet strict OEM specifications. Knowing exactly which truck or SUV this fits is critical because GM reused similar shell designs for different frequencies. This specific 315MHz unit is designed for a very specific generation of trucks and SUVs.
Chevrolet Silverado & GMC Sierra Fitment
This remote is the standard for the primary workhorses in the GM lineup. If you drive a Chevrolet Silverado 1500, 2500, or 3500 built between 2014 and 2020, this is likely your match. It also fully supports the GMC Sierra lineup for the same model years.
SUV Compatibility: Suburban, Tahoe, and Yukon
Beyond the trucks, this fob pairs perfectly with full-size SUVs.
- Chevrolet Suburban & Tahoe: 2015–2020
- GMC Yukon & Yukon XL: 2015–2020
4-Button vs. 5-Button Variants
Visually, these keys look identical to other GM fobs. The 5-button layout includes Remote Start (the circular arrow button) along with Lock, Unlock, Panic, and the Trunk/Glass hatch release. If your original key only has 4 buttons, buying this 5-button version won’t magically add remote start capability to your truck; the vehicle must be equipped with the receiver for it. Always match the button count and FCC ID M3N32337100 to your existing key to ensure the chip communicates correctly.
OEM vs. Keylessbest 315 MHz GM Keyless Entry Remote
When you need a Keylessbest Chevrolet 5buttons 315MHz FCC ID: M3N32337100 IC: 7812A-32337100 replacement, you want dealer quality without the dealer markup. Dealerships often charge top dollar for a Chevrolet 5 button key fob replacement, but going aftermarket doesn’t mean sacrificing reliability.
Here is how our aftermarket Chevrolet key fob M3N32337100 compares to the factory original:
| Feature | Factory GM Fob | Keylessbest Aftermarket |
|---|---|---|
| Price Tag | High ($150+) | Highly Affordable |
| Build Quality | Standard Factory | Premium & Sustainable |
| Circuit Board | Original Specs | Exact OEM Match |
| Warranty | Limited Dealer Terms | Comprehensive Coverage |
Durability and Component Quality
We build our fobs to last. Every unit undergoes rigorous durability testing to ensure the buttons hold up to daily wear and the 315 MHz signal remains strong. If you are comparing our remote against the OEM GM part 13577770 cross reference, you will find our replacement matches those precise specifications.
We prioritize sustainable manufacturing and high-grade internal components so your remote functions flawlessly for years. For optimal, long-lasting performance, we always recommend pairing your new fob with a premium Lithducell electrical cell to ensure maximum signal range and battery life.
When to Buy a Shell-Only Replacement
Sometimes you don’t need the whole package. Here is a quick checklist for when to skip the full fob:
- Intact Electronics: Your current remote still unlocks and starts the truck perfectly.
- Physical Damage: The outer plastic casing is cracked or crushed.
- Worn Buttons: The rubber icons are rubbed off or falling out.
If this sounds like your situation, buying a key fob shell only M3N32337100 is your best route. You simply swap your existing, programmed circuit board into our new Keylessbest casing—saving you money and allowing you to skip the locksmith programming entirely.
Programming Your New Chevrolet Fob
Can I program M3N32337100 at home?
For most modern GM vehicles, DIY programming in your driveway is not an option. To securely pair the Keylessbest Chevrolet 5buttons 315MHz FCC ID: M3N32337100 IC: 7812A-32337100, you need professional-grade equipment. The vehicle’s onboard computer requires a secure handshake with the new remote to activate features like the remote start and the panic alarm.
Required OBD2 tools and locksmith software
To successfully sync an aftermarket Chevrolet key fob M3N32337100, technicians must connect specialized diagnostic tools directly to your vehicle’s OBD2 port.
- Diagnostic Scanners: Advanced tools (like Autel or Smart Pro) are required to access the vehicle’s computer.
- Locksmith Software: Specific software is used to securely bypass the GM gateway and add new key codes.
- Transponder Syncing: This process ensures the internal chip communicates correctly with the ignition so the engine actually starts.
Estimated professional locksmith costs and timeframes
When it is time to program GM keyless remote locksmith services are usually your most cost-effective route. Skipping the dealership saves you from steep service markups.
- Average Cost: Pricing generally ranges from $60 to $120 across the United States, depending on your local market.
- Timeframe: An experienced automotive locksmith can cut the backup key blade and program the fob in roughly 15 to 30 minutes.
Pre-visit checklist for programming success
Before scheduling an appointment to get your remote programmed, follow this quick checklist to ensure a smooth process:
- Bring all existing keys: Programming a new fob often wipes the vehicle’s memory. All current remotes must be present so they can be relearned during the same session.
- Verify the FCC ID: Check your original remote one last time to ensure it strictly matches M3N32337100.
- Test the car battery: A weak vehicle battery can cause voltage drops that interrupt the OBD2 programming sequence.
Keylessbest support for locksmith referrals
As the manufacturer, we stand behind the quality of our remotes and want to ensure they work flawlessly for you. If you are having trouble finding a qualified local technician to handle the programming, reach out to our support team. We can help point you toward trusted automotive locksmiths in your area who are fully equipped to handle modern GM security systems.
Battery Replacement and Installation Guide
Swapping the battery on your Keylessbest Chevrolet 5buttons 315MHz FCC ID: M3N32337100 IC: 7812A-32337100 remote is a fast, straightforward DIY job. You don’t need to visit a dealership or pay labor fees just to fix a dead remote.
Tools Needed for the Swap
Keep it simple. You only need two items to complete a proper CR2032 key fob battery replacement:
- A small flathead screwdriver (or a strong coin)
- One fresh, high-quality CR2032 3V lithium battery
Step-by-Step Battery Installation
Follow these quick steps to get your Chevrolet 5 button key fob replacement powered up and ready for action:
- Remove the emergency key: Press the release button on the bottom of the fob and slide the metal emergency key out.
- Open the shell: Insert your flathead screwdriver into the slot left by the key and gently pry the two plastic halves apart.
- Swap the power source: Pop out the old battery. Insert the new CR2032 battery making sure the positive (+) side is facing down against the back cover.
- Snap it closed: Align the two halves of the fob shell and squeeze them together until they click solidly into place. Slide the emergency key back in.
Whether you are handling this specific Chevy remote or dealing with other GM vehicles like older Cadillac DTS remotes, this exact battery swap logic remains practically identical across the board.
Testing and Troubleshooting
Always test your newly powered fob before paying for any professional programming. Stand near your vehicle and press the lock or unlock buttons. If the small LED on the fob flashes but your truck doesn’t respond, the fob is successfully powered but simply needs to be paired to the vehicle’s computer.
Getting a “no response” error or no LED flash? Try these quick fixes:
- Check battery polarity: Double-check that the (+) side of the battery is oriented correctly. Putting it in upside down is the most common mistake.
- Clean the contacts: Dirt or finger oils can block the connection. Take a Q-tip with a tiny bit of rubbing alcohol and gently wipe the metal battery prongs inside the shell.
- Verify the frequency: Keep in mind this is a 315 MHz GM keyless entry remote. If your specific vehicle trim requires a different frequency, even a fully powered fob will not communicate with the truck’s receiver.
Why Choose Keylessbest for Your Chevy Remote
The Keylessbest Advantage
- Direct Quality Control: Factory-direct testing ensures your aftermarket Chevrolet key fob M3N32337100 works flawlessly the second you hit the remote start.
- 365-Day Returns & Free Shipping: We know US drivers need reliable gear. We stand by our remotes with a full year of return coverage and fast, free shipping across the country.
- Eco-Friendly Engineering: We utilize sustainable sourcing and manufacturing practices without sacrificing the powerful signal range of a true 315 MHz GM keyless entry remote.
Customer Benefits at a Glance
| Feature | The Keylessbest Guarantee |
|---|---|
| Pricing | Direct-to-consumer wholesale savings |
| Quality | Tested to meet or exceed OEM performance |
| Warranty | 365-day hassle-free return policy |
| Delivery | Fast, free US shipping |
Our customers consistently report saving hundreds of dollars by skipping the dealership. When you choose Keylessbest, you get the exact same hatch, panic, and remote start functionality you expect, backed by real support and proven durability.
Buying Checklist & Fast Order Guide
Ready to buy your 315MHz Chevrolet keyless fob online? Before you head to checkout, run through this quick checklist to ensure you get exactly what you need for your truck or SUV.
FCC ID M3N32337100 Confirmation
Double-check the back of your original remote or look up your vehicle’s exact specifications before buying. The FCC ID must perfectly match M3N32337100 and the IC must read 7812A-32337100. If these numbers do not line up, this Keylessbest Chevrolet 5buttons remote will not sync with your system.
Package Contents
When you order this Chevrolet 5 button key fob replacement from us, we ship a complete, ready-to-program unit. Here is exactly what comes in the box:
- Fully Assembled Fob: High-quality front and back shell casing with a durable 5-button pad (Remote Start, Lock, Unlock, Hatch, Panic).
- Tested Circuit Board: Complete 315 MHz GM keyless entry remote electronics, strictly quality-checked for optimal signal range.
- Fresh CR2032 Battery: Pre-installed and ready to go so you can take it straight to your local locksmith.
- Uncut Key Blade: Blank emergency insert key ready to be cut for your specific door locks.
Current Pricing & Discounts
Because we manufacture these remotes directly, we cut out the middleman. You skip the heavy dealership markup and get a premium aftermarket Chevrolet key fob M3N32337100 at a fraction of the OEM cost. Check our main product page for current daily low prices, and if you are a professional locksmith stocking up, keep an eye out for our bulk order discounts.
One-Click Fast Order
Don’t waste time searching through hundreds of listings. Get your exact replacement right here:
[Buy the Keylessbest Chevrolet 5-Button M3N32337100 Fob Now]
FAQ: Common Questions About M3N32337100 Fobs
We get a lot of questions from customers looking for a reliable Keylessbest Chevrolet 5buttons 315MHz FCC ID: M3N32337100 IC: 7812A-32337100 replacement. Here are the straight answers you need before checking out.
Will this work on 2026+ GM models?
No. This specific 315 MHz GM keyless entry remote is engineered specifically for the 2014–2020 generation. For 2026 and newer models, GM updated their systems and frequencies. Always match your current remote’s numbers. If you drive a newer vehicle, you can browse our full selection of Chevrolet 5 button key fob replacements to find the exact match for your year.
Does the fob include the transponder chip?
Yes. When you order this aftermarket Chevrolet key fob M3N32337100, you are getting a complete, ready-to-go unit.
- Fully Equipped: Includes the internal circuit board and the integrated transponder chip.
- Battery Included: Comes with a pre-installed CR2032 battery.
- Ready for Setup: Take it straight to your local locksmith for programming.
Shipping times and tracking information
We know losing a key is stressful, so we move fast to get you back on the road.
- Fast Dispatch: Orders ship out quickly from our US-based facilities.
- Real-Time Tracking: As soon as your package is labeled, we send tracking info directly to your inbox so you know exactly when it will arrive.
What to do if the fob does not program
If your locksmith hits a snag while trying to program your GM keyless remote, run through this quick checklist:
- Double-Check the Numbers: Verify that your original key matches FCC ID: M3N32337100 and IC: 7812A-32337100 exactly.
- Inspect the Battery: Sometimes a bump in transit can unseat the CR2032 key fob battery. Pop the case open and make sure it is snug.
- Locksmith Equipment: Confirm your locksmith is using up-to-date OBD2 software capable of handling 2015-2020 Chevy Suburban keyless entry systems and Silverado trucks.
- Contact Us: If everything checks out and it still will not pair, reach out to our support team. We stand behind our products and will help you get it sorted out.
