MechanMagic Toyota/Scion Key Fob Remote Replacement HYQ12BBX Pack of 2 — Pre-tested with Battery Included

MechanMagic HYQ12BBX is a ready-to-program replacement keyless entry remote designed to restore remote locking/unlocking for many Toyota and Scion models (pack of 2).

If your original key fob is lost, damaged, or the buttons no longer respond, this MechanMagic replacement remote offers an economical way to regain remote access without visiting a dealer. Each unit ships with the battery and electronics pre-installed, arrives fully pre-tested by locksmith tools, and supports self-programming when you have at least one functioning key on hand. It matches common OEM part numbers and the HYQ12BBX/HYQ12BAN FCC IDs, making it a practical substitute for a range of Toyota and Scion vehicles.

Which vehicles will this key fob work with?

This remote fits many Toyota and Scion models across model years listed by the manufacturer. It is compatible with OEM part numbers 89742-0C020, 89742-42120, and 89742-52010 and the FCC IDs HYQ12BBX and HYQ12BAN.

• Compatible models include Toyota 4Runner (1999–2009), Celica (2001–2005), RAV4 (2001–2005), Highlander (2001–2007), Prius (2001–2003), Tundra (2004–2006), Echo (2004–2005), FJ Cruiser (2007–2008), and Scion XA/XB (2004–2006).
• Not compatible with push-to-start (keyless ignition) vehicles; only supports standard-key systems.
• Always verify vehicle fitment using the product description and the seller’s fitment tool before purchase.

How do I program this replacement remote to my car?

The remote supports dealer-free self-programming but requires one working original key to complete the procedure. Programming steps are printed on the package and a link to instructions is provided, so no credit card details are needed to access the guide.

• Have at least one functional factory key in hand before beginning.
• Follow the step-by-step instructions printed on the package or the included instruction link.
• If your original remote shows a red/green light on top, this replacement will not work — check before buying.

What comes in the box and what quality checks are included?

Each pack contains two fully assembled remote units with batteries and electronic modules already installed. MechanMagic tests every remote with professional locksmith tools prior to shipping to ensure the buttons and transmitter are functioning correctly out of the box.

• Package includes: 2 x MechanMagic keyless entry remotes, batteries, and electronics pre-installed.
• All remotes are 100% brand new and pre-tested for transmission and button response.
• Easy-to-follow programming link printed on the exterior packaging.

Are there limitations or important compatibility notes?

This remote is an economical aftermarket replacement but has a few important limits: it will not operate vehicles with push-button start systems and it requires a standard mechanical key setup. Also ensure your factory remote does not have a colored LED on top, which indicates an incompatible model.

• Not compatible with push-start or smart-key vehicles.
• Requires an existing working key for self-programming.
• Check the original remote for a red/green top light — if present, do not use this replacement.

Who is this for: MechanMagic’s HYQ12BBX pack of two remotes is best for Toyota and Scion owners who need a fast, cost-effective replacement for broken or lost key fobs and prefer to program the transmitter themselves. It’s ideal for DIYers, independent locksmiths, or anyone wanting to avoid dealer markups — provided the vehicle uses a regular key ignition and the original remote isn’t the colored-LED type.