2019 Kenworth T680 Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

Unfortunately, the 2019 Kenworth T680 generally does not support DIY on-board programming for key fobs. This means you won't be able to program a new remote control yourself using a series of ignition cycles or button presses.

Key fob programming for your 2019 Kenworth T680 typically requires specialized diagnostic equipment connected to the vehicle's onboard computer. This equipment is used to access the vehicle's security system and pair the new remote with the truck. This is usually performed by a Kenworth dealership or a qualified automotive locksmith with the appropriate tools.

Attempting to program the fob yourself without the correct equipment can potentially lead to issues with your vehicle's security system or render the new fob inoperable.

Battery replacement

Replacing the battery in your Kenworth T680 key fob is a straightforward process:

1. Locate the seam: Look for a small seam along the edge of the key fob casing.
2. Pry open the case: Use a small, flat-head screwdriver or a coin to carefully pry open the two halves of the fob. Work your way around the seam gently to avoid damaging the plastic.
3. Remove the old battery: Note the orientation of the battery (which side is positive/negative). Carefully remove the old CR2032 battery.
4. Insert the new battery: Place the new CR2032 battery into the fob with the correct orientation (usually positive side up).
5. Reassemble the fob: Carefully snap the two halves of the key fob back together until you hear a click or feel them securely fastened.
6. Test the fob: Test the newly batteried fob by attempting to lock and unlock your truck.

Where to buy a replacement fob

• Kenworth Dealership:

  • Pros: Guaranteed genuine OEM part, often comes with programming services included. They have the precise software and knowledge for your specific truck.
  • Cons: Can be the most expensive option, often ranging from $150 to $300 or more for the fob and programming.

• Automotive Locksmith:

  • Pros: Often more affordable than a dealership, many mobile locksmiths can come to your location, offering convenience. They have the specialized programming tools needed.
  • Cons: Ensure the locksmith has experience with heavy-duty trucks like Kenworth and possesses the necessary diagnostic equipment. Prices can vary but typically range from $100 to $250 for the fob and programming.

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

  • Pros: Potentially the cheapest option for the fob itself, often $30 to $70 for an aftermarket or even OEM-style replacement.
  • Cons: You still need to pay for programming, which can negate some of the savings if you have to go to a dealer or locksmith. There's also a risk of purchasing a non-compatible or low-quality fob. Always verify the FCC ID (LHJ011) and part numbers before purchasing.

If on-board programming isn't supported

As established, on-board programming is generally not supported for the 2019 Kenworth T680 key fob. This means you will need to rely on professional services:

• Cost Expectations: As mentioned above, expect to pay anywhere from $100 to $300 for a new key fob and programming from either an automotive locksmith or a Kenworth dealership. These costs typically include the price of the key fob itself and the labor required for programming.

• Immobilizer Transponder: The key fob for your Kenworth T680 primarily controls the remote lock/unlock functions. The actual engine immobilizer, which prevents the truck from starting without the correct key, is typically handled by a separate transponder chip embedded within your physical ignition key. If you are having issues starting your truck, it's more likely a problem with the transponder in your physical key rather than the remote fob.

Find a mobile locksmith or shop on Repairius.