Can a Key Be Added Using JLR Topix/SDD Without Replacing the RFA/KVM?

For a 2018 Land Rover Range Rover Velar (and similar JLR models), it is possible to add a key using JLR’s official diagnostic platforms — SDD (Symptom Driven Diagnostics) or Pathfinder — without replacing the RFA (Remote Function Actuator) or KVM (Keyless Vehicle Module), provided certain conditions are met.

Key Considerations:

  1. Vehicle Lock/Armed Status
    • If all keys are lost and the vehicle is locked (security system armed), Land Rover’s official procedure typically requires replacement of the RFA, and in some cases the BCM (Body Control Module).
    • If the vehicle is unlocked (security disarmed) or if at least one working key is still available, a new key can be programmed directly without replacing modules.
  2. Existing Key Condition
    • If the original key is still functional but the casing is damaged, the system recognizes it as valid. In this case, you can simply add a new OEM key without RFA/KVM replacement.
  3. Software and Tools
    • A valid JLR TOPIx account and subscription are required to perform key programming.
    • The Diagnostic Device Agent (DDA) must be installed to allow communication between the diagnostic tool and JLR servers.
    • Ensure your pass-thru device supports DOIP (Diagnostics over Internet Protocol). Tested devices include AEZ Flasher3 and Autel VCMI.
  4. Testing Communication
    • Even without an active subscription, you can verify connectivity by checking if the diagnostic software can read the VIN using the DDA.

Cost Factor

Conclusion

Yes — as long as the vehicle is not locked with all keys lost, you can add a new OEM key using JLR SDD/Pathfinder via TOPIx without replacing the RFA or KVM. If the system is armed and all keys are lost, module replacement may be unavoidable per JLR’s security design.

More information about JLR,please refer to Land Rover Trouble Repair.