Description
Lexus Smart Key Fob Replacement
2015–2020Product Summary
Aftermarket 4-button smart key fob for select 2015–2020 Lexus NX Series (NX200t / NX300 / NX300h) and LX570 vehicles. Compatible with FCC ID HYQ14FBA operating at 315 MHz. Includes CR2032 battery and LXP90 emergency key.
Technical Specifications
| Product Type | Proximity Smart Key |
| Condition | Aftermarket |
| FCC ID | HYQ14FBA |
| IC Number | 1551A-14FBA |
| Frequency | 315 MHz |
| Buttons | 4 Button (Lock, Unlock, Trunk/Hatch, Panic) |
| Part Number | 89904-78470 |
| Battery | Included (CR2032) |
| Emergency Key | LXP90 |
Vehicle Compatibility
- Lexus NX200t: 2015–2017
- Lexus NX300: 2018–2020
- Lexus NX300h: 2015–2020
- Lexus LX570: 2016–2020
Frequently Asked Questions
How do I know if this is the correct key for my vehicle?
To confirm compatibility, match your original remote’s FCC ID (HYQ14FBA), part number (89904-78470), button count, and frequency with this listing.
Can I program this key myself?
In most cases, no. This type of smart key fob typically requires professional programming using locksmith or dealer-level equipment. The included LXP90 emergency key blade must be cut by a professional before use.
What is included with this key?
This listing includes the main smart key fob, internal electronics, and battery. The LXP90 emergency key blade is also included inside the fob.
Professional programming and key cutting are required for this product. Please confirm all product details and compatibility before purchase.