Which Nissan Sentra does the 285E3-3SG0D smart key fit?

The 285E3-3SG0D smart key fits the Nissan Sentra and Versa 2012-2019 with the 4-button layout, North American version. Match the part number printed on the back of the original key, and the button layout, before ordering. A key with a different part number may not register.

Is the FCC ID enough to pick the right key?

No. The FCC ID CWTWB1U840 is a radio approval that Nissan also uses on 285E3-3NF4A. Those keys can fit other cars or have other buttons, so the part number 285E3-3SG0D on the original key is the deciding reference.

What frequency and transponder chip does the 285E3-3SG0D key use?

The 285E3-3SG0D smart key transmits at 315 MHz and carries a HITAG 2, ID46 (PCF7952) transponder inside the housing. No separate chip is needed, but the key must be registered to the car with a diagnostic tool before it unlocks the doors or starts the engine.

How is the Nissan Sentra 2012-2019 smart key programmed?

The Nissan Sentra and Versa 2012-2019 smart key is programmed over the OBD-II port with the dealer system or a locksmith key programmer that covers this model. Registration needs the BCM PIN and erases every stored key, so register all keys in one session.

Is the emergency blade included with the 285E3-3SG0D key?

No. The 285E3-3SG0D smart key is supplied as the key only, without its emergency insert blade; it takes an NSN14 profile blade. Source the blade separately and cut it to the vehicle's key code, by code or by decoding the door lock.

Is this 285E3-3SG0D key a genuine Nissan part?

Yes. This listing is a genuine factory Nissan 285E3-3SG0D 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 285E3-3SG0D smart key take?

The 285E3-3SG0D smart key runs on a CR2025 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.

Nissan Sentra Versa 2012-2019 CWTWB1U840 285E3-3SG0D Genuine

Name: Nissan Sentra Versa 2012-2019 Smart Key 4-button 315MHz - 285E3-3SG0D - Genuine · OEM · New
Brand: Nissan
SKU: B00095
Price: 270 AED
Availability: OutOfStock

Specification

Value

Vehicle Make

Nissan

Condition

Genuine Brand New

Country of Manufacture

Mexico

Region

GCC & Europ, Usa & Canada

Frequency

315 MHz

Battery

CR2032

Buttons Count

4-buttons

Color

Black

Transponder Chip

PCF7952A ID46

Fcc Id

CWTWBU1U840

1788D-FWB11U840

Oem Part Number

285E3-3SG0D

Weight

0.06 kg

Genuine · OEM · New

Nissan Sentra Versa 2012-2019 Smart Key 4-Button

4-button · 315 MHz · ID46 · FCC ID CWTWB1U840 · Part 285E3-3SG0D

Buttons

315 MHz

Frequency

ID46

Transponder chip

CR2025

Battery

⭐ Built for the Nissan Sentra and Versa 2012-2019, this 4-button smart key is a new genuine factory Nissan unit of part number 285E3-3SG0D, running at 315 MHz with a HITAG 2, ID46 (PCF7952) transponder. Its buttons cover lock, unlock, trunk, panic. 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 285E3-3NF4A, so the part number, not the FCC ID, decides the order.

⚙️ Key features

4-button layout

Lock, unlock, trunk, panic.

315 MHz with ID46

315 MHz transmitter paired with a HITAG 2, ID46 (PCF7952) transponder for proximity entry and push-button start.

FCC ID is shared

Its radio approval is also used on 285E3-3NF4A; the part number 285E3-3SG0D is the reference.

CR2025 coin cell

Runs on a user-replaceable CR2025 battery. The emergency blade is sourced separately.

💎 Benefits

Same layout as the original

Customers get back the 4 functions they use every day, with nothing missing on handover.

Clear part reference

Part number 285E3-3SG0D on the listing makes it quick to match against the customer's key.

Factory electronics

A genuine Nissan 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 Nissan Sentra and Versa with OBD key programmers.

Key shops and counter trade

Stock for walk-in spare key requests on the Sentra and Versa.

Dealers and garages

Replacement keys for used Sentra and Versa stock and service customers.

🚗 Compatible vehicles

NISSANSentra2013-2019

NISSANVersa2012-2019

Before ordering, match part number 285E3-3SG0D or FCC ID CWTWB1U840 printed on the original key.

📦 What's included

✅ IN THE BOX

✔ 1 × genuine new 4-button smart key with HITAG 2, ID46 (PCF7952) transponder

❌ NOT INCLUDED

✘ Emergency insert blade (NSN14 profile) - 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

CWTWB1U840

Frequency

315 MHz

Buttons

Key type

Smart proximity key, push-button start

1788D-FWB1U840

🔐 TRANSPONDER & BLADE

Transponder chip

HITAG 2, ID46 (PCF7952)

Emergency key blade

Not included

Blade profile

NSN14

📦 PHYSICAL & POWER

Battery

CR2025

Weight

60 g

Condition

Genuine · OEM · New

🔢 PART NUMBERS

285E3-3SG0D part number

IMPORTANT - READ BEFORE ORDERING

BCM PIN and all keys in one session - Nissan Intelligent Key registration needs the BCM PIN, calculated from the challenge code the tool reads, and it erases every stored key, so all of the customer's keys must be registered in the same session.

FCC ID is not enough - the same approval number is used on 285E3-3NF4A, so match part number 285E3-3SG0D on the original.

Not the 285E3-3NF4A key - Nissan Leaf 2013-2017 4-button key (charge port button) on the same FCC ID; not interchangeable; match 285E3-3SG0D on the original.

Not the 285E3-3AA0A key - a different part number; match 285E3-3SG0D on the original.

Market version - this key is the North American version; check the part number on the original before ordering.

Blade not included - this key is supplied without its emergency insert blade; source an NSN14 blade and cut it to the vehicle's key code.

Genuine factory key - a new genuine Nissan 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: the Nissan CONSULT dealer system, or a locksmith key programmer whose software lists this model and year.

Add key (spare): connect over OBD, read the BCM challenge and calculate the PIN, then register the new key together with every existing key the customer keeps, because registration erases all stored keys.

All keys lost: the BCM PIN is calculated from the challenge code first, then each key is registered in the same session.

Blade: cut the NSN14 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 Nissan Sentra and Versa 2012-2019 smart key is in the tool's supported list before the job.