Aftermarket Remote Head Key – ID46 Chip for Land Rover, VW, Porsche & More

Used across a wide range of European and American platforms from 2002 through 2022, the Aftermarket Remote Key Fob – Multi-Vehicle GM, Subaru & Hyun Remote Head Key consolidates remote-lock functionality and mechanical ignition access into a single integrated housing. Each Aftermarket Remote Head Key relies on the ID46 transponder chip to establish encrypted communication with the vehicle’s immobilizer module, ensuring only a properly paired device will allow engine start. For locksmiths and dealership technicians, this remote requires careful alignment of both the transponder enrollment and remote-control programming procedures—two distinct processes that must both succeed for full operation. Owners seeking a cost-effective replacement will find that a correctly programmed Aftermarket Remote Head Key delivers reliable performance comparable to the original equipment unit at a fraction of the OEM price.

ID46 Transponder Technology in the Aftermarket Remote Head Key

The ID46 chip—also known in the industry as the Hitag2 or PCF7936 in certain literature—is a crypto transponder widely adopted by multiple automakers during the 2000s and 2010s. In this unit, the ID46 handles the rolling-code handshake between the key and the vehicle’s engine control module. When the blade is inserted into the ignition barrel and turned, the immobilizer antenna ring energizes the transponder coil embedded in the key head, prompting the chip to transmit its encrypted response. If the ECM validates the response against its stored key profile, the fuel injection and starter circuits are released.

Because the ID46 is a crypto chip rather than a fixed-code device, programming typically requires either a pin-code read from the vehicle’s OBD-II port or, in some applications, an EEPROM dump from the body control module. Locksmiths should verify the exact programming path for each platform, since the procedure varies significantly between the Land Rover, Volkswagen/Porsche VAG-group, and GM-family vehicles covered by this product.

Validated Vehicle Compatibility

The following fitment list has been verified for this remote head key. These spans reflect model-year ranges during which the ID46 transponder and compatible remote-head form factor were used at the factory level:

• Land Rover Range Rover — 2002 to 2012
• Land Rover Range Rover Vogue — 2002 to 2012
• Volkswagen Phaeton — 2002 to 2016 (spanning two production phases: 2002–2008 and 2009–2016)
• Volkswagen Touareg — 2002 to 2010
• Porsche Cayenne — 2002 to 2010 (covering the original 955 and early 957 chassis)
• Buick Allure — 2005 to 2010
• Buick Encore — 2013 to 2022
• Buick LaCrosse — 2010 to 2016
• Buick Regal — 2011 to 2017
• Buick Verano — 2012 to 2016
• Chevrolet Camaro — 2010 to 2015

This unusually broad cross-brand compatibility stems from the ID46 transponder’s adoption by both the VAG Group (Volkswagen, Porsche) and General Motors during overlapping production eras, as well as its use by Land Rover during the L322 Range Rover generation. Before ordering, confirm that the blade profile and button layout match the original key for the target vehicle, as the mechanical cut and remote button count can differ between platforms even when the transponder chip is identical.

Programming Considerations by Platform

Land Rover Range Rover and Range Rover Vogue (2002–2012)

The L322 Range Rover used a Hitag2-based immobilizer system. Programming the fob typically involves connecting a diagnostic tool to the OBD-II port and entering the security access code stored in the vehicle’s body control module. Some early L322 models (2002–2005) may require a two-step process: transponder enrollment followed by a separate remote synchronization through an RF learn routine. A locksmith should verify whether the vehicle is pre- or post-2006 facelift, as the BCM architecture changed.

Volkswagen Phaeton and Touareg / Porsche Cayenne (2002–2016)

VAG-platform vehicles in this era share a common diagnostic protocol accessible through VCDS (VAG-COM) or equivalent dealer-level tools. The device’s transponder must be adapted via the immobilizer module (instrument cluster on most VAG vehicles), and the remote section is learned through the comfort convenience module. On the Cayenne, early 955 models may require a pin code from the KESSY module, while the 957 revision streamlined the process. For the Phaeton’s second production phase (2009–2016), locksmiths should confirm whether the vehicle transitioned to a different immobilizer generation, as late-model Phaetons in some markets adopted updated security layers.

GM Platforms: Buick and Chevrolet (2005–2022)

General Motors vehicles on this list—including the Buick Allure, Encore, LaCrosse, Regal, Verano, and Chevrolet Camaro—use GM’s Passlock or later immobilizer systems paired with ID46 transponder keys. Programming the remote head key on these models generally requires an advanced diagnostic tool with GM SPS (Service Programming System) capability or an aftermarket equivalent supporting “Add Key” and “All Keys Lost” procedures. On-board programming (the turn-key self-learn method available on older GM platforms) is typically not supported for transponder enrollment on these models, though the remote portion may be learnable through an on-board sequence on some Buick variants.

For the Buick Encore (2013–2026), which spans nearly a decade of production, technicians should note that mid-cycle updates may have changed the BCM part number or firmware version, affecting tool compatibility. Always verify the software subscription level of the diagnostic tool before beginning the procedure.

Blade Cutting and Physical Preparation

Because this remote head key serves vehicles from three distinct manufacturer groups, the uncut blade shipped with the unit must be verified against the original before cutting. Land Rover L322 keys, VAG-group keys, and GM keys each use different keyway profiles and lock cylinder depths. A locksmith should decode the existing key or locks and confirm the correct blank type before cutting on a code machine or duplicator. The blade is typically a standard brass or nickel-silver insert held in the key shell by a screw or snap mechanism, allowing replacement if the cut is incorrect without discarding the entire remote head assembly.

OEM Versus Aftermarket: Practical Differences

The primary advantage of choosing this aftermarket unit over an OEM replacement is cost. Original keys from Land Rover, Volkswagen, Porsche, Buick, and Chevrolet dealerships can range from several hundred to over a thousand dollars depending on the brand and whether programming is included. The aftermarket alternative uses the same ID46 transponder specification and compatible remote circuitry at a significantly lower price point.

Potential trade-offs include housing fit and finish—aftermarket shells may have slightly different textures or button feel compared to factory originals—and, in rare cases, RF range differences due to antenna design variations. Functionally, however, a properly programmed aftermarket unit will perform identically to OEM for ignition, lock, and unlock operations. Locksmiths frequently stock these as a standard offering for customers who need a reliable replacement without the dealership markup.

When to Contact a Professional Locksmith

Vehicle owners who need this key programmed should work with a qualified automotive locksmith or dealership technician. The ID46 transponder’s cryptographic enrollment cannot be performed at home without specialized equipment. Attempting to use the key without proper programming will result in a crank-no-start condition, as the immobilizer will reject the unauthenticated chip. A professional locksmith can typically complete the entire process—cutting, transponder enrollment, and remote programming—in a single service call, minimizing vehicle downtime.