2020 Subaru Ascent Smart Key Remote Fob Programming Instructions

Important Notice: The 2020 Subaru Ascent does not support onboard programming for smart key remote fobs. A qualified technician must perform the programming using specialized diagnostic tools connected to the vehicle's onboard systems.

Step-by-Step Programming Instructions:

• Step 1: Contact a certified automotive technician or authorized service provider who has the appropriate diagnostic equipment to program smart key systems.
• Step 2: Ensure the technician has experience working with proximity-based keyless entry and push-button start systems specific to your vehicle model.
• Step 3: If the vehicle is driveable, it’s often more cost-effective to take it directly to the technician’s facility rather than requesting mobile service.
• Step 4: Bring all existing remotes to the appointment. Some systems require all remotes to be present during programming to remain active.
• Step 5: Have valid proof of ownership ready, such as a vehicle registration or title, especially if no working keys are available.
• Step 6: The technician will connect a professional-grade diagnostic interface to the vehicle’s onboard computer system to initiate the key fob registration process.
• Step 7: The new smart key remote fob will be securely programmed to communicate with the vehicle, enabling all remote locking, unlocking, and ignition functions.
• Step 8: After the programming process is complete, the technician will test the remote to ensure all features operate correctly, including proximity start if equipped.
• Step 9: Verify that any previously programmed remotes still function properly. If needed, they can be reprogrammed during the same session.
• Step 10: Consider having a backup remote programmed at the same time to avoid inconvenience in case of future loss or damage.