2023 Subaru Legacy Smart Key Remote Fob Programming Instructions

Important Notice: The 2023 Subaru Legacy does not allow onboard programming for its smart key remote fob. A trained automotive technician must complete the process using advanced diagnostic equipment.

Programming Procedure:

• Step 1: Arrange service with a qualified technician or authorized service provider who has access to the appropriate tools for smart key programming.
• Step 2: If the vehicle is operational, driving it to the service location may help minimize costs compared to requesting mobile service.
• Step 3: The technician will connect diagnostic equipment to the vehicle's onboard system and program the new smart key remote fob using the manufacturer’s specified procedure.
• Step 4: After registration is complete, all key functions—such as remote locking, unlocking, and push-button start—will be tested to ensure full functionality.

Additional Notes:

• Proof of ownership may be required, particularly if no working remotes are available. Some systems require all remotes to be present during programming to avoid disabling previously registered fobs. Always verify that the technician is experienced with Subaru smart key systems to ensure accurate and secure programming.