Description
Lexus Proximity Key 2015-2020
This smart proximity remote is designed to work exactly like your original Lexus key. It is a precise technical match for push-to-start key systems, featuring the AG Board (2110) circuitry, IC Number 1551A-14FBA, and high-security 8A Transponder encryption. Whether you’ve lost your only set ("All Keys Lost") or just want to add a spare key for peace of mind, this proximity key restores every factory feature, including keyless entry and power hatch control. Professional automotive locksmith programming is required to sync this remote to your vehicle.
The Technical Details
| FCC ID | HYQ14FBA |
| IC Number | 1551A-14FBA |
| Circuit Board ID | AG Board (2110) |
| Chip & Frequency | 8A Transponder / 315 MHz |
| Battery Type | CR2032 (Included & Installed) |
| Emergency Key | Uncut LXP90 Blade Included |
| Fits These Models |
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Things to Know Before Buying
How do I verify if I have the "AG Board 2110"?
The most reliable way is to open your current keyless entry remote and check the circuit board. It must have "AG" and "2110" printed on it. This is crucial for NX and LX models, as other boards will not program successfully even if they look the same.
Can I program this myself?
No. Lexus smart proximity remote systems require a direct connection to the car's computer via the OBD2 port. A professional locksmith has the tools to sync the new push-to-start key to your immobilizer safely.
What arrives in the box?
You'll get the replacement key with a fresh CR2032 battery already inside, plus the uncut LXP90 emergency blade. You just need to take it to a locksmith to have it laser-cut and programmed.
⚠️ Mandatory Board Match
Lexus remotes are version-specific. This smart proximity remote is strictly for AG Board 2110 architectures. Internal board verification is the only way to guarantee compatibility before purchase.