Add additional key fob

Product Overview (JLR OEM‑Spec PEPS Security Programming Service)

Add additional key fob delivers factory‑compliant spare key registration for DOIP‑architecture JLR Defender L663 vehicles. Many owners only hold one working proximity smart fob, creating risk of lockout or key loss. This service securely registers a new OEM blank smart key fob into the vehicle’s native PEPS passive entry / passive start security system. The new fob shares identical functionality with your original factory keys.

Physical key hardware alone cannot communicate with the vehicle immobiliser. Our jlrcoding specialists run full DOIP diagnostics, perform security access authentication and execute authorised KVM‑RFA immobiliser key‑learn routines. The procedure writes the new fob’s LF / UHF cryptographic identity to the KVM memory, syncs RFA remote functions and updates the BCM access permission table. Existing working keys remain fully operational after programming completes.

Key Fob Hardware & Operating Logic

The OEM proximity smart key fob combines LF low‑frequency wake antenna, UHF rolling‑code transmitter and secure immobiliser transponder chip. When the fob sits within detection range, the KVM sends LF wake signals. The fob replies with encrypted UHF identity data over the CAN‑FD network. The vehicle validates the cryptographic signature before enabling door unlock and engine start authorisation.

Once programming finishes, the new key supports touch‑handle passive unlock, walk‑away locking, push‑button start and all remote RKE functions including lock, unlock and panic alarm. The instrument cluster updates its registered key inventory list to display the newly added fob. The system respects JLR factory key quantity limits and retains original anti‑cloning security protection.

A blank fob will not trigger immobiliser release or remote functions before the secure key‑learn process. Simply replacing the internal battery cannot register the key identity inside KVM memory.

Vehicle Eligibility & Technical Pre‑Conditions

This Add additional key fob service supports 2020‑onwards Defender L663 90, 110 and 130 chassis. At minimum one fully functional original smart key fob must be present at the vehicle during programming. Send your VIN number first. We validate KVM and RFA module compatibility, current key count and PEPS system health before the remote session starts. Our team completes a full DOIP pre‑scan to check existing security‑related DTC faults.

No dashboard or interior trim disassembly is required for this service. You prepare the blank OEM smart key fob at the vehicle location. Our technicians create a secure backup copy of your original CCF and KVM security data before key programming. We execute the PEPS key‑learn sequence, sync RFA remote codes and clear residual security DTCs after registration completes.

Pair on‑site key hardware preparation with our global remote coding service. Remote sessions require DOIP‑VCI or Enet Type‑C cable following jlrcoding standard remote‑service workflow. The new blank key fob must be placed inside the vehicle cabin for detection during the key‑learn routine.

Key Technical & Practical Benefits

• Full OEM Proximity Smart Key Functionality: New fob supports passive entry, passive start, walk‑away lock and RKE remote commands matching original factory keys.
• Secure KVM‑RFA Immobiliser Registration: Dealer‑level authenticated key‑learn writes encrypted key identity without erasing your existing working fobs.
• Preserve Native PEPS & CAN‑FD Security: No aftermarket emulation boxes; maintains original JLR rolling‑code anti‑theft protection.
• Professional DOIP Diagnostic & DTC Clearing: Pre‑scan, CCF backup and post‑programming fault clearing prevents security warning lamp issues.

Quality Assurance & Service Notes

Every Add additional key fob service includes pre‑programming diagnostic health‑check and original security data backup. Our technicians verify LF detection, engine start, touch‑handle entry and remote lock/unlock for all registered keys after programming. A blank fob without KVM registration cannot operate the vehicle.

Incomplete security synchronisation may cause intermittent key detection, immobiliser refusal or stored RFA communication DTCs. Once fully programmed, this OEM‑spec security service eliminates single‑key risk, offering reliable backup access for Defender L663 daily drivers, families and overland owners.