Which Lexus RX350 does the 89904-0E160 smart key fit?

The 89904-0E160 smart key fits the Lexus RX350, RX450h, RX350L and RX450hL 2016-2020 with the 4-button layout, North America (USA / Canada) version. Match the part number printed on the back of the original key, and the button layout, before ordering.

Is the FCC ID enough to pick the right key?

No. The FCC ID HYQ14FBB is a radio approval that Lexus also uses on 89904-0E170, 89904-48C30. Those keys can fit other cars or have other buttons, so the part number 89904-0E160 on the original key is the deciding reference.

What frequency and transponder chip does the 89904-0E160 key use?

The 89904-0E160 smart key transmits at 315 MHz and carries a DST-AES, ID 8A (Texas Instruments 128-bit) transponder inside the housing. Match the frequency on the original key too. A key on another frequency will not talk to the car.

How is the Lexus RX350 2016-2020 smart key programmed?

The Lexus RX 2016-2020 smart key is programmed over the OBD-II port with the dealer system or a locksmith key programmer that covers this model. All keys lost takes extra steps that depend on the chip generation, so check the tool's coverage first.

Is the emergency blade included with the 89904-0E160 key?

No. The 89904-0E160 smart key is supplied as the key only, without its emergency insert blade. Source the blade separately and cut it to the vehicle's key code, by code or by decoding the door lock. Check the blade profile against the original key.

Is this 89904-0E160 key a genuine Lexus part?

Yes. This listing is a genuine factory Lexus 89904-0E160 smart key, supplied new and unprogrammed, without the emergency blade. It is programmed to the car over OBD like any new key. Match the part number on the original first.

Which battery does the 89904-0E160 smart key take?

The 89904-0E160 smart key runs on a CR1632 coin cell battery, fitted inside the housing. Replace it when the range drops or the dashboard shows a low key battery warning. If the battery is flat, hold the key against the start button to start the car.

Genuine Lexus RX 2016-2020 Smart Key 4-Button 89904-0E160

Name: Lexus RX350 RX450h RX350L 2016-2020 Smart Key 4-button 315MHz - 89904-0E160 - Genuine · OEM · New
Brand: Lexus
SKU: B00465
Price: 525 AED
Availability: OutOfStock

Specification

Value

Vehicle Make

Lexus

Condition

Genuine Brand New

Country of Manufacture

Japan

Region

Usa & Canada

Frequency

315 MHz

Battery

CR2032

Buttons Count

4-buttons

Weight

0.06 kg

Genuine · OEM · New

Lexus RX350 RX450h RX350L 2016-2020 Smart Key 4-Button

4-button · 315 MHz · ID8A · FCC ID HYQ14FBB · Part 89904-0E160

Buttons

315 MHz

Frequency

ID8A

Transponder chip

CR1632

Battery

⭐ Built for the Lexus RX350, RX450h, RX350L and RX450hL 2016-2020, this 4-button smart key is a new genuine factory Lexus unit of part number 89904-0E160, running at 315 MHz with a DST-AES, ID 8A (Texas Instruments 128-bit) transponder. Its buttons cover lock, unlock, panic, hatch. It is supplied as the key only, without the emergency blade, and is registered over OBD with a diagnostic tool. The same radio approval is fitted to 89904-0E170, 89904-48C30, so the part number, not the FCC ID, decides the order.

⚙️ Key features

4-button layout

Lock, unlock, panic, hatch.

315 MHz with ID8A

315 MHz transmitter paired with a DST-AES, ID 8A (Texas Instruments 128-bit) transponder for proximity entry and push-button start.

FCC ID is shared

Its radio approval is also used on 89904-0E170, 89904-48C30; the part number 89904-0E160 is the reference.

CR1632 coin cell

Runs on a user-replaceable CR1632 battery. The emergency blade is sourced separately.

💎 Benefits

Every button working

The 4-button layout matches the car, so the customer keeps every remote function.

Fewer wrong orders

Ordering by part number 89904-0E160 avoids returns from look-alike keys.

Factory electronics

A genuine Lexus unit, so the electronics match the original key exactly.

Customer confidence

A factory key reassures customers who want the same part the car was built with.

👥 Who it's for

Automotive locksmiths

Add-key and all-keys-lost jobs on the Lexus RX with OBD key programmers.

Key shops and counter trade

Stock for walk-in spare key requests on the RX.

Dealers and garages

Replacement keys for used RX stock and service customers.

🚗 Compatible vehicles

🚙 LEXUS

RX3502016-2020

RX450h2016-2020

RX350L2019-2020

RX450hL2019-2020

Before ordering, match part number 89904-0E160 or FCC ID HYQ14FBB printed on the original key.

📦 What's included

✅ IN THE BOX

✔ 1 × genuine new 4-button smart key with DST-AES, ID 8A (Texas Instruments 128-bit) transponder

❌ NOT INCLUDED

✘ Emergency insert blade - source separately and cut to the vehicle's key code

✘ Programming to the vehicle - done over OBD with a diagnostic tool

📋 Specifications

📡 REMOTE

FCC ID

HYQ14FBB

Frequency

315 MHz

Buttons

4 (incl. panic)

Key type

Smart proximity key, push-button start

1551A-14FBB

🔐 TRANSPONDER & BLADE

Transponder chip

DST-AES, ID 8A (Texas Instruments 128-bit)

Emergency key blade

Not included

Blade profile

Not published

📦 PHYSICAL & POWER

Battery

CR1632

Weight

60 g

Condition

Genuine · OEM · New

🔢 PART NUMBERS

89904-0E160 part number

IMPORTANT - READ BEFORE ORDERING

Check the route before the job - Lexus smart keys are registered through the smart key ECU over OBD; all keys lost takes extra steps that depend on the chip generation, so check your tool covers this RX before booking.

FCC ID is not enough - the same approval number is used on 89904-0E170, 89904-48C30, so match part number 89904-0E160 on the original.

Not the 89904-0E180 key - a different part number; match 89904-0E160 on the original.

Not the 89904-0E170 key - a different part number; match 89904-0E160 on the original.

Market version - this key is the North America (USA / Canada) version; check the part number on the original before ordering.

Blade not included - this key is supplied without its emergency insert blade; source a matching blade and cut it to the vehicle's key code.

Genuine factory key - a new genuine Lexus unit, supplied unprogrammed.

🛠️ Programming instructions

🔌OBD PROGRAMMING - DIAGNOSTIC TOOL REQUIRED

This proximity smart key cannot be learned by hand. It is registered to the car through the OBD-II port with a diagnostic tool.

Compatible tools: Toyota Techstream at the dealer, or locksmith tools whose software lists this model, such as Lonsdor K518, Lonsdor LKE emulator, EoneBoss TLK1.

Add key (spare): connect over OBD with a working key present and run the tool's smart key registration through the smart key ECU.

All keys lost: the route depends on the chip generation; newer platforms may need the smart key ECU read on the bench or an emulator before a key can be registered.

Blade: cut the emergency blade, sourced separately, to the vehicle's key code and test it in the driver's door.

Check coverage first: support depends on the tool's software version and the exact model year. Verify the Lexus RX 2016-2020 smart key is in the tool's supported list before the job.