2019 Toyota Highlander Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

The 2019 Toyota Highlander does not support DIY on-board programming for its smart key system. This vehicle utilizes a sophisticated immobilizer system that requires specialized diagnostic equipment to program new smart keys. Therefore, programming must be performed by a Toyota dealership or a qualified automotive locksmith.

Attempting to program the key fob yourself without the proper tools can render the key unusable and potentially cause issues with your vehicle's immobilizer system. It's always best to rely on professionals for this process.

Battery replacement

1. Locate the small release button or switch on the side of the key fob and push it to release the mechanical key. Pull the mechanical key out.
2. With the mechanical key removed, you will see a slot or small indentation. Use a small flathead screwdriver or a coin to gently pry the two halves of the smart key fob apart.
3. Carefully separate the two halves. You'll see the circuit board and the CR2032 coin cell battery.
4. Note the orientation of the battery (the positive side, usually marked with a "+", facing up). Use your screwdriver or a non-metallic tool to gently pop out the old battery.
5. Insert the new CR2032 battery with the positive side facing the same direction as the old one.
6. Carefully align the two halves of the key fob and press them together until they snap securely into place.
7. Reinsert the mechanical key.

Where to buy a replacement fob

• Toyota Dealership: This is often the most expensive option, but it guarantees an OEM part and professional programming. Expect to pay $250 - $450 for the fob and programming.
• Automotive Locksmith: A qualified automotive locksmith can provide and program OEM or high-quality aftermarket smart keys. This is generally more affordable than a dealership, often costing $180 - $350 for the fob and service. Locksmiths also offer the convenience of mobile service, coming to your location.
• Online Retailers (e.g., Amazon, eBay): You can often find genuine OEM and aftermarket key fobs at a lower price online. However, be cautious to ensure you're purchasing from a reputable seller and that the FCC ID and part number match your original fob. Remember, even if you buy the fob online, you will still need a locksmith or dealer to program it and cut the emergency key. Fobs alone can range from $50 - $150, but account for programming and cutting costs on top of that.

If on-board programming isn't supported

As mentioned, the 2019 Toyota Highlander requires specialized equipment for smart key programming due to its advanced immobilizer system. The immobilizer transponder is integrated into the smart key itself, and the vehicle's computer needs to be programmed to recognize the unique code of the new key.

Cost Expectations:

• Programming Only (if you provide the fob): Approximately $75 - $150 from a locksmith or dealership.
• Fob and Programming: As detailed above, expect $180 - $450 depending on the source and whether you choose OEM or aftermarket and factor in any mobile service charges for locksmiths.

Always confirm the total cost with your chosen provider before proceeding.

Find a mobile locksmith or shop on Repairius.