USARemote Lexus Car Key Fob Remote for ES330 LS430 SC430 - HYQ12BBT Replacement, Battery Installed & Ready-to-Program

USARemote replacement keyless entry remote for Lexus ES330, LS430 and SC430 models (part HYQ12BBT / 1511A-12BBT) is a full electronic remote assembly with battery that restores remote locking and trunk functions.

This aftermarket key fob is built to match the original remote’s button layout and electrical functions, giving you a cost-effective way to replace a lost or damaged remote. It arrives ready with the internal electronics and battery installed, and it pairs to your vehicle by programming it with an existing working master key. Note that the transponder chip that lets the car start must be transferred and programmed by a locksmith or dealer if you need ignition capability.

How do I install and program this USARemote key fob?

Programming this remote restores the remote lock, unlock and trunk release functions once the fob is synced to the vehicle. You will need one functioning master key on hand and follow the included step-by-step programming directions to complete syncing.

• Use the provided instructions to access the vehicle’s programming mode.
• Have one working original key available for the pairing process.
• No soldering is required; the unit is shipped fully assembled with battery.
• If the car won’t start, the transponder chip must be professionally programmed.

Will this remote start my Lexus after installation?

This remote controls locks and other remote functions but does not automatically enable ignition until the transponder is programmed into the vehicle’s immobilizer system. The physical electronic assembly is included, yet the starting chip must be handled separately.

• Battery and circuit assembly included for remote functions.
• Transponder chip reprogramming requires locksmith or dealer tools.
• Ideal for restoring remote entry immediately; ignition requires additional steps.

Which Lexus models and part numbers does this replacement fit?

The fob is made to replace factory remotes on multiple Lexus sedans and convertibles, matching the OEM part references for accurate compatibility. Confirm part numbers and model years before ordering to ensure fitment.

• Compatible with Lexus ES330, LS430 and SC430 models.
• Replacement for OEM P/N HYQ12BBT and 1511A-12BBT.
• Matches original button layout and electrical connectors for direct swap.

What durability and maintenance can I expect from this remote?

The remote is manufactured with a complete electronic assembly and battery installed to give reliable everyday performance. It’s constructed for long-term use, and routine battery replacement will keep remote functions working as intended.

• Durable housing resists daily wear and tear.
• Battery included; replaceable when depleted.
• Complete plug-and-play electronics—no assembly required.

Who is this for: drivers who need an affordable OEM-style replacement remote for Lexus ES330, LS430 or SC430 vehicles without replacing the factory master key. It’s especially useful for owners who want a ready-to-use remote for locking, unlocking and trunk release and are prepared to have their transponder chip handled by a professional to restore ignition capability. If you have a working master key and want to avoid dealership pricing for a fresh remote, this USARemote assembly provides a practical, simple solution.