2017 Toyota Highlander Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

The 2017 Toyota Highlander utilizes a smart key system, which requires specialized diagnostic equipment to program new key fobs. There is no DIY on-board programming procedure for this vehicle. This means you cannot program a new key fob yourself by following a sequence of steps like turning the ignition on/off or opening/closing doors.

To program a new key fob for your 2017 Toyota Highlander, you will need a professional-grade scan tool that can communicate with the vehicle's immobilizer system. This procedure typically involves:

1. Connecting the scan tool to the vehicle's OBD-II port.
2. Accessing the immobilizer programming functions within the scan tool software.
3. Following the on-screen prompts to register the new key fob with the vehicle's computer.

Due to the specialized equipment and technical knowledge required, this process is best left to a certified automotive locksmith or a Toyota dealership.

Battery replacement

The smart key fob for your 2017 Toyota Highlander uses a single CR2032 coin cell battery.

1. Locate the small release button or tab on the side of the key fob. Press or slide it to release the emergency key blade.
2. Once the emergency key blade is removed, you will see a small slot or notch on the key fob casing. Use a flat-head screwdriver or a coin to carefully pry open the two halves of the key fob.
3. Gently remove the old CR2032 battery. Note the orientation of the battery (positive side up or down) before removing it.
4. Insert the new CR2032 battery with the positive (+) side facing the same direction as the old battery.
5. Carefully snap the two halves of the key fob back together until they are securely closed.
6. Reinsert the emergency key blade.

Where to buy a replacement fob

When considering where to purchase a replacement key fob for your 2017 Toyota Highlander, you have a few options, each with pros, cons, and varying price points.

• Toyota Dealership:

  • Pros: Guaranteed genuine OEM part, often comes with a warranty, and includes programming by certified technicians.
  • Cons: Most expensive option. Expect to pay between $250 - $400 for a new fob and programming.

• Certified Automotive Locksmith:

  • Pros: Can often provide OEM or high-quality aftermarket fobs, typically at a lower cost than a dealership. Many locksmiths offer mobile services, coming to your location. They have the necessary programming tools.
  • Cons: Quality of aftermarket fobs can vary; ensure the locksmith uses reputable brands. Prices generally range from $180 - $350 for parts and programming.

• Online Retailers (e.g., Amazon, eBay):

  • Pros: Potentially the cheapest option to purchase the physical fob itself.
  • Cons: You are only buying the physical fob; you'll still need to pay for cutting (if a new emergency key blade is included) and programming. There's a higher risk of receiving a counterfeit or incompatible fob. Often, sellers do not include the transponder chip or it's of poor quality. If you buy online, ensure the FCC ID matches your original fob. You'll still need to factor in programming costs from a locksmith or dealer, which can negate the initial savings.

If on-board programming isn't supported

As established, on-board programming is not an option for the 2017 Toyota Highlander's smart key. This means you will need to rely on a professional service to get your new key fob programmed.

• Cost Expectations: You should budget for the cost of the key fob itself (as outlined above) plus the labor for programming. A professional will link the new smart key to your Highlander's immobilizer system. The immobilizer transponder found in your 2017 Highlander key fob is a specific type designed to communicate securely with the vehicle to prevent theft. Without proper programming, the vehicle will not start, even if the key blade is cut correctly.

• Emergency Key Blade: Even though it's a smart key, your fob contains a traditional metal emergency key blade. This blade needs to be cut to match your vehicle's locks. This can be done by a locksmith or the dealership. This key allows you to manually unlock the door if your fob battery dies or if there's an electronic malfunction.

Find a mobile locksmith or shop on Repairius.