MechanMagic Key Fob Remote Replacement for Chevy & GMC Trucks 2014–2021 — 4‑Button 315MHz with Uncut HU100 Key, Pretested

MechanMagic replacement 4‑button key fob and uncut HU100 transponder key fit select Chevrolet and GMC trucks (2014–2021) using M3N‑32337100 / 315MHz electronics and arrive ready to be cut and programmed.

This MechanMagic kit supplies a full aftermarket key solution: a four‑button remote transmitter (FCC ID M3N‑32337100) operating at 315MHz, a CR2032 battery installed, and an uncut B119/HU100 transponder blade. The remote is built to the same button layout used on many Chevrolet Silverado, Colorado and GMC Sierra, Canyon models from the model years listed, and the package is professionally tested before shipping.

Which vehicles will this remote and key work with?

This replacement set is designed for specific Chevrolet and GMC trucks produced between 2014 and 2021. Use your vehicle’s part numbers and appearance to confirm compatibility before purchase.

• Chevrolet Silverado 1500/2500/3500: model years 2014–2020
• Chevrolet Colorado: model years 2015–2021
• GMC Sierra 1500/2500/3500: model years 2014–2020
• GMC Canyon: model years 2015–2021

How do I get the key cut and the remote programmed?

The blank blade (HU100) must be cut to your vehicle’s original key code by a locksmith or dealer. The remote’s internal electronics come preinstalled, but the transmitter must be matched to your vehicle’s security system.

• Have a locksmith or dealer cut the HU100 blade to your key code.
• Program the remote with a dealership or locksmith—dealer-level programming is required for many vehicles.
• If you have one working key, some locksmiths can use that to pair the chip and remote.

What exactly is included and what should I expect in quality?

The kit includes one four‑button keyless entry remote, one uncut transponder blade, and a CR2032 battery already installed in the fob. MechanMagic pretests each unit to ensure the electronics and battery function prior to shipping.

• 1 × four‑button remote transmitter (FCC ID M3N‑32337100) with CR2032 battery
• 1 × uncut B119 transponder blade, HU100 profile, Chip: 46
• Professionally tested electronics and battery before dispatch
• Note: remote fits regular keyed vehicles only, not keyless‑start variants

Are there any important limitations or compatibility checks I should know?

Yes — confirm your factory remote’s FCC/part number, button layout, and that your vehicle uses a keyed ignition. This replacement will not work on vehicles with smart key or push‑button start systems that use different transponder setups.

• Verify FCC ID M3N‑32337100 / P/N 22881480 and 315MHz frequency match your OEM remote
• Remote is intended for regular keyed ignitions; smart‑key vehicles differ
• Programming requires locksmith or dealer services; self‑programming is limited

Who this is for: This MechanMagic kit is for owners of compatible Chevrolet or GMC trucks who need an OEM‑style replacement remote and a blank transponder blade. It’s ideal for drivers restoring a lost key, adding a spare, or replacing a broken fob when they can access locksmith or dealer programming and key cutting services. If you’re unsure about fitment, double‑check your vehicle’s part numbers and consult a locksmith before ordering.