2023 GMC Yukon Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

Unfortunately, the 2023 GMC Yukon does not support DIY on-board programming for new key fobs. This means you won't be able to program a new key fob yourself using a simple sequence of steps like turning the ignition on and off. Modern vehicles like the 2023 Yukon utilize advanced security systems that require specialized diagnostic tools to program new key fobs and integrate them with the vehicle's immobilizer system.

Battery replacement

The key fob for your 2023 GMC Yukon uses a CR2032 coin cell battery. To replace it:

1. Locate the small release button or tab on the side or back of the key fob. Press it to release the emergency key blade. Pull the key blade out.
2. With the emergency key blade removed, you should see a small slot or indentation on the key fob casing. Use a small flathead screwdriver or a coin to carefully pry the two halves of the key fob apart.
3. Gently remove the old CR2032 battery. Note the orientation of the positive (+) and negative (-) terminals.
4. Insert the new CR2032 battery with the positive (+) side facing up (usually indicated by a + symbol on the battery itself and often on the fob's internal casing).
5. Carefully snap the two halves of the key fob back together until you hear a click.
6. Reinsert the emergency key blade.

Where to buy a replacement fob

When considering a replacement key fob for your 2023 GMC Yukon, you have a few options, each with its own pros and cons:

• GMC Dealership:

  • Pros: Guaranteed genuine OEM part, expert programming by certified technicians. Usually the most straightforward option.
  • Cons: Typically the most expensive option. Expect to pay between $200-$400 for the fob and programming.

• Automotive Locksmith:

  • Pros: Often more affordable than a dealership, especially for the programming service. Many mobile locksmiths can come to your location. They can often provide both OEM equivalent and aftermarket fobs.
  • Cons: Quality of aftermarket fobs can vary. Ensure the locksmith is reputable and experienced with modern vehicle security systems.
  • Ballpark Price: Prices can range from $150-$300, depending on the fob type and programming complexity.

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

  • Pros: Can find fobs at significantly lower prices, sometimes as low as $30-$80 for the fob itself.
  • Cons: You're purchasing the fob only; you'll still need to pay for cutting the emergency key blade (if applicable) and programming. There's a risk of purchasing a counterfeit or incompatible fob. Always verify the FCC ID and part number are correct for your vehicle.

If on-board programming isn't supported

Since on-board programming isn't an option for your 2023 GMC Yukon, you will need to rely on a professional for programming. This is due to the advanced immobilizer system that requires specialized diagnostic equipment to sync a new key fob with your vehicle's computer. The key fob contains a transponder chip that communicates with the immobilizer to allow the vehicle to start. Without proper programming, the vehicle will not recognize the new key and will not start.

Cost Expectations: As mentioned above, expect to pay for both the key fob itself and the programming service. Dealerships will likely charge a flat fee for programming, which can range from $80 to $150 or more, in addition to the cost of the fob. Locksmiths may offer more competitive rates. Always get a quote beforehand.

Find a mobile locksmith or shop on Repairius.