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  4. Cadillac STS 2005-2007 Smart Key 5-button 315MHz - 15212382 - Without Box - Genuine · OEM · New
Cadillac STS 2005-2007 Smart Key 5-button 315MHz - 15212382 - Without Box - Genuine · OEM · New

Cadillac STS 2005-2007 Smart Key 5-button 315MHz - 15212382 - Without Box - Genuine · OEM · New

Genuine, no box

SKU: B01442

$73.03
 259.97

Fits Cadillac STS 2005–2007

  • 315 MHzFrequency
  • ID46Transponder
  • 5-buttonButtons

Ships the next working day if you order within 36 hours 28 minutes

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Specifications

Genuine Cadillac 5-button smart key for Cadillac STS 2005-2007, 315 MHz, ID46 chip, blade not included. Part 15212382.

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Genuine · OEM · New

Cadillac STS 2005-2007 Smart Key 5-Button

5-button · 315 MHz · ID46 · FCC ID M3N65981403 · Part 15212382

5
Buttons
315 MHz
Frequency
ID46
Transponder chip
CR2032
Battery

⭐ The Cadillac STS 2005-2007 5-button smart key on part number 15212382 is offered here as a new genuine factory Cadillac unit, working at 315 MHz and carrying a HITAG 2, ID46 transponder. Its buttons cover lock, unlock, trunk, remote start, panic. It is supplied as the key only, without the emergency blade, and is learned to the car through the driver information display.

⚙️ Key features

5-button layout

Lock, unlock, trunk, remote start, panic.

315 MHz with ID46

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

STS fitment

Matches the Cadillac STS 2005-2007, North American specification.

CR2032 coin cell

Runs on a user-replaceable CR2032 battery. The emergency blade is sourced separately.

💎 Benefits

Same layout as the original

Customers get back the 5 functions they use every day, with nothing missing on handover.

Clear part reference

Part number 15212382 on the listing makes it quick to match against the customer's key.

Factory electronics

A genuine Cadillac 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

Spare and all-keys-lost jobs on the Cadillac STS with the on-board learn or the dealer system.

Key shops and counter trade

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

Dealers and garages

Replacement keys for used STS stock and service customers.

🚗 Compatible vehicles

CADILLACSTS2005-2007Keyless Access cars
Before ordering, match part number 15212382 or FCC ID M3N65981403 printed on the original key.

📦 What's included

✅ IN THE BOX

✔ 1 × genuine new 5-button smart key with HITAG 2, ID46 transponder (no original dealer box)

❌ NOT INCLUDED

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

✘ Programming to the vehicle - done with the on-board learn or the dealer system

📋 Specifications

📡 REMOTE
FCC ID
M3N65981403
Frequency
315 MHz
Buttons
5 (incl. panic)
Key type
Smart proximity key, push-button start
IC
267F-65981403
🔐 TRANSPONDER & BLADE
Transponder chip
HITAG 2, ID46
Emergency key blade
Not included
Blade profile
Not published
📦 PHYSICAL & POWER
Battery
CR2032
Weight
60 g
Condition
Genuine · OEM · New
🔢 PART NUMBERS
15212382 part number

🛠️ Programming instructions

🔌ON-BOARD LEARN - NO TOOL NEEDED

This proximity smart key is learned to the car through the driver information display, with a working fob or through the 30-minute relearn.

Tools: none for the on-board learn; the GM dealer system (Techline Connect / SPS) learns the fob when the on-board steps fail.
Add key (spare): with a working fob, unlock the driver door with the key in the lock 5 times within 5 seconds, then place the new fob in the transmitter pocket in the console bin when the display asks; the stored fobs stay learned.
All keys lost: three 10-minute OFF / ACC ignition cycles, about 30 minutes, start the relearn; it erases every stored fob, so learn all of the customer's fobs, up to 4, in the same session.
Blade: cut the emergency blade, sourced separately, to the vehicle's key code and test it in the driver's door.
Check coverage first: the on-board steps fail on some cars, and the dealer system then learns the fob.

Frequently Asked Questions

Common questions about this product

The 15212382 smart key fits the Cadillac STS 2005-2007 with the 5-button layout, North American version. Match the part number printed on the back of the original key, and the button layout, before ordering. Keys for the same car can differ by trim, market and button count.
Read the part number on the back of the original key or on the key label and match it with 15212382. Then compare the 5-button layout and FCC ID M3N65981403 with this listing. A dealer can also look up the key by VIN.
The 15212382 smart key transmits at 315 MHz and carries a HITAG 2, ID46 transponder inside the housing. No separate chip is needed, but the key must be learned to the car before it unlocks the doors or starts the engine.
The Cadillac STS 2005-2007 smart key is learned on board through the driver information display, with no tool needed when a working fob is present. Without a working fob, three 10-minute ignition cycles start the relearn and erase every stored fob, so learn all fobs together.
No. The 15212382 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.
Yes. This listing is a genuine factory Cadillac 15212382 smart key, supplied new and unprogrammed, without the original dealer box, without the emergency blade. It is learned to the car on board like any new fob. Match the part number on the original first.
The 15212382 smart key runs on a CR2032 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.
Related lookups:FCC M3N65981403Cadillac STS