2017 Chevrolet Tahoe Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

Unfortunately, the 2017 Chevrolet Tahoe does not support DIY on-board programming for its key fobs. Programming a new key fob requires specialized diagnostic equipment to access the vehicle's Body Control Module (BCM). This means you will need to visit a certified automotive locksmith or a Chevrolet dealership to have your new key fob programmed.

The process typically involves:

1. Connecting a scan tool to the vehicle's OBD-II port.
2. Accessing the vehicle's security system.
3. Clearing existing key fob data (if lost fobs are a concern).
4. Programming the new key fob(s) to the vehicle's BCM.
5. Verifying proper functionality of all buttons and the integrated key blade.

Attempting to program the fob yourself without the proper tools can lead to complications, potentially requiring a more expensive repair from a dealer.

Battery replacement

Replacing the battery in your 2017 Chevrolet Tahoe key fob is a straightforward process:

1. Locate the release button/switch: On the side or back of the fob, you'll find a small button or switch that releases the integrated key blade. Press or slide this to remove the metal key.
2. Separate the two halves: Once the metal key is removed, you should see a small notch or seam along the edge of the fob. Use a small flathead screwdriver or a coin to carefully pry apart the two halves of the fob. Be gentle to avoid damaging the casing.
3. Remove the old battery: Inside, you'll see the circuit board and the CR2032 coin cell battery. Note the orientation of the battery (usually positive side facing up). Gently pry out the old battery.
4. Insert the new battery: Place the new CR2032 battery into the compartment with the positive side facing the same direction as the old one.
5. Reassemble the fob: Carefully snap the two halves of the fob back together until they are secure. Insert the integrated key blade back into its slot.
6. Test the fob: Test all the buttons (lock, unlock, remote start, etc.) to ensure the new battery is working correctly.

Where to buy a replacement fob

When considering where to purchase a replacement key fob for your 2017 Chevrolet Tahoe, you have a few options, each with its own pros and cons:

• Chevrolet Dealership:

  • Pros: Guaranteed genuine OEM part, often includes programming in the purchase price, and they handle all aspects of programming and key cutting.
  • Cons: Most expensive option, typically ranging from $250 - $450 or more for the fob and programming.

• Automotive Locksmith:

  • Pros: Often more affordable than a dealership, can provide and program OEM or high-quality aftermarket fobs, and many mobile locksmiths can come to your location.
  • Cons: Quality of aftermarket fobs can vary, so ensure the locksmith uses reputable brands or OEM parts. Prices typically range from $150 - $300 for the fob and programming.

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

  • Pros: Potentially the cheapest option for the fob itself, with a wide variety of aftermarket and used OEM fobs available.
  • Cons: You only get the fob; you'll still need to pay a locksmith or dealer for programming and key cutting. There's also a risk of purchasing a counterfeit or incompatible fob. Always verify the FCC ID (OHT01060512) and part number. A new raw key blade will also need to be cut, and the immobilizer transponder chip, which is integrated into the fob, will need to be programmed to your vehicle.

If on-board programming isn't supported

As established, your 2017 Chevrolet Tahoe requires a professional for key fob programming. This is due to the advanced security system, including the immobilizer transponder chip, which is an integral part of the key fob. This transponder communicates with the vehicle's engine control unit (ECU). If the transponder isn't correctly programmed, the vehicle's immobilizer system will prevent the engine from starting, even if the key blade is cut correctly.

• Cost Expectations: As mentioned above, expect to pay anywhere from $150 (locksmith) to $450 (dealership) for a new key fob, key cutting, and programming. This cost typically covers the fob itself, the service of cutting the integrated key blade, and the electronic programming of both the remote functions and the immobilizer transponder.

• Immobilizer Transponder: The key fob contains a passive transponder chip. When the key is inserted into the ignition (or present for push-button start), the vehicle's immobilizer system reads a unique code from this chip. If the code matches what's stored in the vehicle's ECU, the engine is allowed to start. If it doesn't match, the engine will not start.

Find a mobile locksmith or shop on Repairius.