Keyecu Smart Remote Car Key Fob for Chevrolet Suburban Tahoe & GMC Yukon 2021-2025 — 6-Button 433MHz ID49 Replacement

If your factory key is lost, damaged, or the buttons have stopped responding, this Keyecu replacement provides the same six-button layout—Lock, Unlock, Remote Start, Power Door Release (liftgate), Glass Hatch Release and Panic—and the correct FCC/board compatibility for common Chevy and GMC full-size SUVs. The shell pairs ABS and metal construction for durability and includes a mechanical emergency blade; however, the remote requires professional cutting and programmer-based cloning to activate vehicle systems.

How can I confirm this fob will fit my vehicle?

Match your current key and remote board to ensure compatibility before purchasing. The physical button arrangement and the remote board number and frequency are the primary fit criteria for these aftermarket fobs.

• Compare your original key’s button layout and overall shape to the Keyecu fob.
• Open your original remote to check the board label for FCC ID YG0G21TB2 (or listed part numbers).
• Verify the remote frequency reads 433MHz and that your vehicle transponder uses an ID49 chip.

What steps are required to program this replacement key?

This replacement fob must be cut and programmed by a qualified locksmith or dealer using a professional key programmer; it cannot be activated by basic DIY pairing. Proper cloning will transfer your vehicle’s immobilizer data to the new ID49 chip so the car recognizes the fob.

• Have the mechanical blade cut to match your vehicle’s ignition/door locks.
• Bring the remote to a locksmith with a programmer such as K518, VVDI Key Tool Plus, or similar professional tools.
• Request transponder cloning and remote button programming to enable all functions (remote start, liftgate, etc.).

Which models and years are supported by this Keyecu fob?

This aftermarket remote is built to work with a range of Chevrolet and GMC full-size SUVs from recent model years when the vehicle uses the same board ID and frequency. It's intended for vehicles that originally shipped with the listed FCC ID or compatible part numbers.

• Chevrolet Suburban: 2021, 2022, 2023, 2024, 2025.
• Chevrolet Tahoe: 2021, 2022, 2023, 2024, 2025.
• GMC Yukon and Yukon XL: 2021 through 2025 models.
• Works with remotes using the ID49 transponder and 433MHz frequency.

What are the build and feature highlights of this replacement fob?

The Keyecu fob is manufactured from durable ABS with metal inserts and includes an emergency mechanical key blade. Button responsiveness and long-term stability are emphasized in the aftermarket design, though the internal replacement board may lack original branding or markings.

• Material: ABS plastic housing with metal blade for strength and longevity.
• Buttons: six-function layout—Lock, Unlock, Remote Start, Liftgate release, Glass hatch release, Panic.
• Electronics: ID49 transponder chip, 433MHz operating frequency, compatible FCC ID references.
• Note: aftermarket board may ship without printed numbers or logos on the back.

Who this replacement is for: drivers of Chevrolet Suburban or Tahoe and GMC Yukon/Yukon XL from 2021 to 2025 who need a full-function replacement fob and are willing to have the mechanical key cut and the transponder programmed by a locksmith. If you require an OEM-branded board with factory markings, consider an authorized dealer part; if you want a durable aftermarket shell with correct technical specs and professional programming, the Keyecu option is a practical, cost-effective choice.