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  4. Buick LaCrosse 2017-2019 Smart Key 5-button 433MHz - 13508414 - Aftermarket · New
Buick LaCrosse 2017-2019 Smart Key 5-button 433MHz - 13508414 - Aftermarket · New

Buick LaCrosse 2017-2019 Smart Key 5-button 433MHz - 13508414 - Aftermarket · New

Aftermarket

SKU: B04689

$18.26
 65.00

Fits Buick Lacrosse 2017–2019

  • 433 MHzFrequency
  • ID46Transponder
  • 5-buttonButtons

Ships the next working day if you order within 36 hours 26 minutes

Order via WhatsApp

Specifications

Aftermarket 5-button smart key for Buick LaCrosse 2017-2019, 433 MHz, ID46 chip, HU100 emergency blade included. Part 13508414.

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Aftermarket · New

Buick LaCrosse 2017-2019 Smart Key 5-Button

5-button · 433 MHz · ID46 · For FCC ID HYQ4EA · Part 13508414

5
Buttons
433 MHz
Frequency
ID46
Transponder chip
HU100
Blade included

⭐ This is an aftermarket replacement: a 5-button smart key for the Buick LaCrosse 2017-2019, Buick part number 13508414, transmitting at 433 MHz with a HITAG 2, ID46 transponder. Its buttons cover lock, unlock, trunk, remote start, panic. It ships with a HU100 emergency insert blade and is registered over OBD with a diagnostic tool. The same radio approval is fitted to 13532384, 13529638, 13508769, so the part number, not the FCC ID, decides the order.

⚙️ Key features

5-button layout

Lock, unlock, trunk, remote start, panic.

433 MHz with ID46

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

FCC ID is shared

Its radio approval is also used on 13532384, 13529638; the part number 13508414 is the reference.

CR2032 coin cell

Runs on a user-replaceable CR2032 battery. The emergency blade slides out of the housing.

💎 Benefits

Same layout as the original

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

One order, one visit

Key and HU100 blade arrive together, ready to program and cut in one visit.

Clear part reference

Part number 13508414 on the listing makes it quick to match against the customer's key.

Lower cost per job

Keeps add-key and all-keys-lost jobs profitable without a dealer order.

👥 Who it's for

Automotive locksmiths

Add-key and all-keys-lost jobs on the Buick LaCrosse with OBD key programmers.

Key shops and counter trade

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

Dealers and garages

Replacement keys for used LaCrosse stock and service customers.

🚗 Compatible vehicles

BUICKLaCrosse2017-2019push-button start
Before ordering, match part number 13508414 or FCC ID HYQ4EA printed on the original key.

📦 What's included

✅ IN THE BOX

✔ 1 × aftermarket 5-button smart key with HITAG 2, ID46 transponder

✔ 1 × emergency insert blade, HU100 profile

❌ NOT INCLUDED

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

✘ Cutting the emergency blade - cut to the vehicle's key code

📋 Specifications

📡 REMOTE
For FCC ID
HYQ4EA
Frequency
433 MHz
Buttons
5 (incl. panic)
Key type
Smart proximity key, push-button start
🔐 TRANSPONDER & BLADE
Transponder chip
HITAG 2, ID46
Emergency key blade
Included
Blade profile
HU100
📦 PHYSICAL & POWER
Battery
CR2032
Weight
60 g
Condition
Aftermarket · New
🔢 PART NUMBERS
13508414 part number
13532388 related number

🛠️ 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 GM dealer system (Techline Connect / SPS), or a locksmith key programmer whose software lists this model and year.
Add key (spare): connect over OBD, pass the timed security access, then learn the new key together with every key the customer keeps, because a full relearn erases all stored keys.
All keys lost: a tool or the 30-minute relearn, three timed waits of about 10 minutes, learns the keys present and erases every key not present.
Blade: cut the HU100 emergency blade 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 Buick LaCrosse 2017-2019 smart key is in the tool's supported list before the job.

Frequently Asked Questions

Common questions about this product

The 13508414 smart key fits the Buick LaCrosse 2017-2019 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.
No. The FCC ID HYQ4EA is a radio approval that Buick also uses on 13532384, 13529638, 13508769. Those keys can fit other cars or have other buttons, so the part number 13508414 on the original key is the deciding reference.
The 13508414 smart key transmits at 433 MHz and carries a HITAG 2, ID46 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.
The Buick LaCrosse 2017-2019 smart key is programmed over the OBD-II port with the dealer system or a locksmith key programmer that covers this model. Learning runs through timed security waits of about 10 minutes and a full relearn erases every stored key.
Yes. The 13508414 smart key ships with its emergency insert blade, HU100 profile. The blade has to be cut to the vehicle's key code, by code or by decoding the door lock, before it opens the driver's door when the key battery is flat.
No. This is an aftermarket 5-button smart key built to replace Buick part number 13508414 on the LaCrosse 2017-2019. It uses the same frequency and transponder type as the original and is programmed over OBD with the same tools.
The 13508414 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 HYQ4EABuick Lacrosse