2018 GMC Yukon Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

Unfortunately, the 2018 GMC Yukon does not support DIY on-board key fob programming for new remotes. This means you cannot program a new key fob yourself using a series of key turns, door open/closes, or button presses.

Starting with many later model vehicles, including your 2018 GMC Yukon, key fob programming requires specialized diagnostic equipment (a "scan tool") to communicate with the vehicle's Body Control Module (BCM). This process pairs the new key fob's unique identification code with your vehicle's immobilizer system. This is a security measure implemented by manufacturers to prevent unauthorized key duplication and vehicle theft.

Therefore, you will need to seek assistance from a professional locksmith or a GMC dealership to program a new key fob for your vehicle.

Battery replacement

The 2018 GMC Yukon key fob uses a single CR2032 coin cell battery. Replacing it is a straightforward process:

1. Locate the small release button or notch on the side or bottom of the key fob. Press the button or use a small flat-head screwdriver in the notch to separate the two halves of the key fob casing.
2. Carefully pry apart the two halves. You may need to use a small screwdriver or a plastic pry tool to prevent damage.
3. Once open, you will see the circuit board and the battery. Note the orientation of the battery (which side is facing up – usually the positive side).
4. Gently remove the old CR2032 battery. You might need to use a small screwdriver to pop it out.
5. Insert the new CR2032 battery with the positive (+) side facing the same direction as the old one.
6. Align the two halves of the key fob casing and snap them back together until they are secure.

Test the key fob to ensure it locks and unlocks your vehicle.

Where to buy a replacement fob

When considering where to purchase a replacement key fob for your 2018 GMC Yukon, you have a few options, each with its own pros and cons:

• GMC Dealership:

  • Pros: Guaranteed genuine OEM part, often comes with programming included in the price. They have all the necessary tools and expertise.
  • Cons: Most expensive option. Expect to pay anywhere from $250 to $400+ for the fob and programming.

• Professional Locksmith:

  • Pros: Often more affordable than a dealership. Many mobile locksmiths can come to your location, offering convenience. They have the necessary scan tools and can cut the integrated key blade on-site. Locksmiths also often offer both OEM and quality aftermarket options.
  • Cons: Pricing can vary, so it's wise to get a few quotes. Ensure the locksmith is reputable and experienced with modern vehicle key programming.
  • Ballpark Price: Expect to pay between $180 and $300 for an aftermarket fob, cutting, and programming, or slightly more for an OEM fob.

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

  • Pros: Potentially the cheapest option for the key fob itself. You can find both OEM and aftermarket fobs.
  • Cons: You