MechanMagic Replacement Key Fob for Chevrolet Equinox Bolt Volt Trax Sonic HYQ4AA 315 MHz – Pre‑tested, Battery Installed

This MechanMagic key fob replacement is a fully assembled, pre-tested remote control that fits select Chevrolet models (HYQ4AA / 315 MHz) for keyless entry and remote start compatible vehicles.

If your factory remote was lost, damaged, or simply worn out, this direct-fit replacement restores keyless convenience without buying an expensive OEM unit. The MechanMagic fob ships with electronics and batteries already installed, and it’s designed to match the FCC ID HYQ4AA and the listed part numbers so you can program it to work with compatible Chevy vehicles from model years noted below.

Which Chevrolet models and years will this replacement work with?

This fob is intended for specific Chevrolet vehicles that originally used the HYQ4AA remote or equivalent part numbers. It supports model years listed for Volt, Bolt, Equinox, Trax, and Sonic that use a push-button start and the 315 MHz frequency. Verify compatibility with your car’s FCC ID or consult your vehicle fitment tool before purchasing.

• Compatible models: Chevrolet Volt (2016–2019), Bolt (2017–2022), Equinox (2018–2024), Trax (2017–2020), Sonic (2018–2020).
• FCC ID matched: HYQ4AA; frequency: 315 MHz.
• Part numbers referenced: 13585722, 13529664, 13508767.
• Only for push-button start / keyless-ignition vehicles, not keyed ignitions.

How difficult is programming and key blade cutting?

MechanMagic includes self-programming instructions with each fob so many owners can complete remote programming without dealer assistance. The internal electronics and battery arrive pre-installed and tested, but the metal key blade is shipped uncut and requires a locksmith or dealership to cut to your vehicle’s mechanical key code.

• Self-programming guide included for remote syncing steps.
• Uncut key blade must be cut by a professional locksmith or dealer.
• If your vehicle requires dealer-only programming, check compatibility beforehand.

What exactly arrives in the package and how reliable is the product?

Each MechanMagic unit comes assembled with the internal electronics and a pre-installed battery, so you receive a ready-to-test remote right away. The fobs are pre-tested before shipping to reduce DOA issues, and they’re packaged individually so the product arrives protected and ready for programming.

• Included: 1 keyless entry remote with electronics and battery installed.
• Pre-tested electronics to ensure the remote transmits on 315 MHz.
• Packaged for protection during shipping and handling.

Why choose an aftermarket replacement instead of an OEM remote?

An aftermarket replacement like this MechanMagic fob delivers the same keyless functions at a fraction of the OEM price, with the flexibility to program it yourself in many cases. It’s a cost-effective option for replacements, spares, or gifts, without sacrificing the core features you need for remote locking, unlocking, and remote start compatibility when supported by the vehicle.

• Lower cost compared to dealer-sold remotes with equivalent functions.
• Pre-installed battery and electronics speed up testing after programming.
• Convenient spare or replacement when original is lost or damaged.

Who is this for: This MechanMagic key fob replacement is for Chevy owners with compatible push-button start vehicles who need an affordable, pre-tested remote that matches HYQ4AA / 315 MHz specifications. It’s ideal for DIYers comfortable following programming instructions, owners who will have the blade cut by a locksmith, and anyone seeking a reliable spare or replacement without dealer pricing.