MechanMagic Keyless Entry Remote Key Fob for Chrysler & Dodge 2015–2021 — Pre‑assembled, Battery Included

MechanMagic keyless entry remote control (FCC M3M-40821302) is a ready-to-program replacement key fob for select Chrysler 200, Chrysler 300, Dodge Charger and Dodge Challenger model years.

This MechanMagic remote arrives with batteries and electronics pre-installed, offering a factory-style shell and circuit board that professional shops or dealerships can program to your vehicle. It matches OEM form and button layout so it integrates neatly with your car’s existing keyless entry and remote start systems when programmed by an authorized technician. The fob is built to replace lost or damaged originals and to serve as a reliable spare key once properly programmed.

Which vehicles and part numbers is this remote compatible with?

The MechanMagic key fob is compatible with Chrysler 200 (2015–2017), Chrysler 300 (2019–2021), Dodge Charger (2019–2021) and Dodge Challenger (2019–2021) that use FCC ID M3M-40821302. It also fits OEM part numbers commonly referenced for these models.

• FCC ID: M3M-40821302 / M3M40821302
• Compatible OEM part numbers: 68155687AB, 68394191AA, 68394195AA
• Check vehicle fitment tool or dealer for exact model-year matches

How does programming work and who can program this fob?

This replacement fob requires professional programming; it cannot be self-programmed through in-car steps. A licensed auto locksmith or a dealership will link the fob’s electronics to your vehicle’s immobilizer and keyless entry system using diagnostic tools and secure procedures.

• Bring the fob and your vehicle to a dealer or qualified locksmith
• Programming integrates the fob with your car’s security and remote start (if equipped)
• Keep proof of ownership and vehicle ID to speed authorization

What comes in the box and what condition is the fob in?

Each package contains one MechanMagic keyless entry remote with the circuit board and battery already installed and pre-tested. The unit ships ready for professional programming so you won’t need to open or modify the internal electronics before your locksmith or dealer programs it.

• 1x pre-assembled keyless entry remote with battery and electronics included
• Pre-tested electronics to ensure initial functionality
• Arrives as a complete replacement shell matching OEM button layout

Will this fob support remote start and keyless entry features?

The fob contains the standard buttons and electronics for keyless entry and will support remote start if your vehicle originally used that function and the dealer programs the fob accordingly. Feature availability depends on the vehicle’s factory equipment and the programming performed during installation.

• Supports keyless lock/unlock and remote start when vehicle equipment allows
• Dealer or locksmith enables remote-start functions during programming
• Confirm your vehicle’s original features before purchase

Who is this for: This MechanMagic replacement is designed for owners of compatible Chrysler and Dodge vehicles who need a cost-effective, ready-to-program spare or replacement key fob. It’s ideal for drivers who prefer a near-OEM fit and function but plan to use a professional locksmith or dealership for secure programming. Whether you lost your original, want a backup, or are restoring a vehicle, this fob offers a practical alternative to ordering direct-from-dealer remotes.