Keyecu GMC Terrain Smart Remote Key Fob Replacement 2021-2024 — 5-Button 315MHz with Uncut Blade & Transponder

The KEYECU Smart Remote Key Fob is a full replacement 5-button remote for GMC Terrain 2021–2024 (315MHz, FCC ID: HYQ1AS) that arrives ready to be cut and programmed to your vehicle.

If your original Terrain key fob is lost, damaged, or the shell cracked, this KEYECU replacement provides the complete hardware—battery, uncut key blade, 4A transponder chip and circuit board—so a locksmith or dealer can finish cutting and programming it to match your car. It mirrors the button layout and frequency of the factory HYQ1AS remote so it behaves the same once configured.

How do I confirm this fob fits my GMC Terrain?

Compare the physical shell, button layout, and part numbers with your original key. The KEYECU remote matches the common OEM numbers and runs at 315MHz (FCC ID HYQ1AS), but you should still open your original key to verify the part information if possible.

• Compatible years: GMC Terrain 2021, 2022, 2023, 2024.
• Check part numbers: 22984995, 13522899, 13547801 on your existing key or circuit board.
• Verify frequency: 315MHz and FCC ID: HYQ1AS before purchase.

What comes in the box and what must a locksmith do?

The KEYECU package is a complete remote key fob kit containing the circuit board, transponder (4A chip), new battery, and an uncut metal blade. A professional locksmith or dealership needs to cut the blade to your ignition and program the transponder and remote functions to the vehicle.

• Included: battery, uncut blade, circuit board, 4A transponder chip—ready for programming.
• Required: blade cutting to match your ignition and remote/transponder programming to pair with your car.
• Lost original key? A dealer can confirm fit and perform reprogramming based on your VIN.

Will this remote work the same as my original key?

Yes—once cut and programmed the KEYECU fob duplicates factory remote functions such as keyless entry and panic, using the same key layout and electrical components. It is designed to replicate the original HYQ1AS remote’s behavior when properly matched to the vehicle.

• Function parity: same button count and positions for lock, unlock, remote start/aux (if equipped), trunk/panic.
• Electrical match: 315MHz frequency and included circuit board for identical performance after programming.
• Durability: fresh shell and battery reduce failure points compared with worn original fobs.

How do I check the part number if my key is lost?

If you no longer have the original fob, contact a dealership with your vehicle identification number (VIN) or consult your vehicle paperwork. The dealer can look up the correct OEM part number and confirm whether this KEYECU HYQ1AS replacement is compatible.

• Without the key: dealer lookup by VIN to confirm OEM part number and frequency.
• With the key: open the shell or inspect the circuit board to read part numbers directly.
• If unsure: provide photos of your current key to a locksmith or seller for verification.

Who is this for? This KEYECU smart remote is for GMC Terrain owners (2021–2024) who need a reliable hardware replacement—whether their factory fob is damaged, lost, or aging. It’s aimed at vehicle owners who have access to a professional locksmith or dealer for key cutting and programming and who want a fully equipped replacement (battery, transponder, uncut blade, and circuit board) that matches OEM frequency and FCC identification.