2021 Toyota 4Runner Smart Key Remote Fob Programming Guide

Important Notice: The 2021 Toyota 4Runner does not support onboard programming for smart key or remote head key fobs. Programming must be completed by a qualified automotive technician using specialized diagnostic tools.

Programming Procedure:

• Step 1: Contact a Certified Automotive Technician Locate a service provider with experience in electronic key systems. Ensure they have the proper tools and expertise to handle both smart keys and remote head key configurations.
• Step 2: Identify the Ignition System Type Determine whether your vehicle features a push-button start or a standard turn-key ignition. The required programming process will vary based on this system.
• Step 3: Schedule a Programming Appointment Once the ignition type is confirmed, schedule an appointment with a technician trained to work with your key system and vehicle model.
• Step 4: Prepare Ownership Documentation If you don’t have a working remote, bring proof of ownership—such as your vehicle registration or title—before the programming can begin.
• Step 5: Technician Connects Programming Equipment At your appointment, the technician will use specialized diagnostic tools to connect to your vehicle’s onboard system and program the new key fob.
• Step 6: Test Remote Functionality After programming is completed, check all functions—lock, unlock, panic, and start (if applicable)—to ensure proper operation.

Additional Considerations:

• Bring All Existing Remotes: Some systems will erase previously stored remotes during programming, so all key fobs must be present. Select a Technician with Smart Key Experience: Proper setup depends on professional knowledge and compatible equipment.