2015 Chevrolet Silverado 3500HD Key Fob Programming Guide

Quick reference

Step-by-step on-board programming

Unfortunately, the 2015 Chevrolet Silverado 3500HD does not support DIY on-board key fob programming. This model requires a specialized scan tool to program new key fobs into the vehicle's computer. This is a security measure implemented by General Motors to prevent unauthorized access and theft. You will need to visit a dealership or a qualified automotive locksmith to have your new key fob programmed.

Battery replacement

Replacing the battery in your 2015 Chevrolet Silverado 3500HD key fob is a straightforward process. Here's how:

1. Locate the release button/slot: On the side or bottom of your key fob, you'll find a small button or slot. Press this button or insert a small flathead screwdriver into the slot to release the emergency key.
2. Separate the two halves: With the emergency key removed, you can usually gently pry open the two halves of the key fob. Some fobs may have a small indentation where you can insert a flathead screwdriver to help separate them.
3. Remove the old battery: Carefully note the orientation of the old CR2032 battery (the positive (+) side usually faces up). Gently pry it out.
4. Insert the new battery: Place the new CR2032 battery into the fob, ensuring the positive (+) side is facing the correct direction.
5. Reassemble the fob: Carefully snap the two halves of the key fob back together and reinsert the emergency key.

Where to buy a replacement fob

• Dealership:

  • Pros: Guaranteed genuine OEM part, often comes with programming included in the price. The dealer will have the correct equipment and expertise.
  • Cons: Most expensive option. Expect to pay anywhere from $150 to $350 for the fob and programming.

• Automotive Locksmith:

  • Pros: Often more affordable than a dealership. Locksmiths have the necessary scan tools and can come to your location (mobile service). They can often provide and program aftermarket fobs, which can be significantly cheaper.
  • Cons: Ensure the locksmith is reputable and experienced with your vehicle. Prices can vary.

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

  • Pros: Potentially the cheapest option for the fob itself. A wide variety of OEM and aftermarket options are available.
  • Cons: You're only buying the fob; you still need to find a locksmith or dealer to program it. Be very careful to verify the FCC ID (OHT01060512) and part numbers (13577771, 13508766) to ensure compatibility. The quality of aftermarket fobs can vary.

If on-board programming isn't supported

As mentioned, your 2015 Chevrolet Silverado 3500HD requires a scan tool for key fob programming. This means you will need to pay for professional service:

• Cost Expectations:
  • Locksmith: Typically ranges from $75 to $150 for programming an existing fob, plus the cost of the fob if purchased through them. Mobile locksmiths may charge a service call fee.
  • Dealership: Expect programming fees to be around $100 to $200, in addition to the cost of the key fob if purchased from them.
• Immobilizer Transponder: The key fob for your Silverado 3500HD contains an immobilizer transponder chip, which is a crucial part of your vehicle's anti-theft system. This chip must also be programmed to your vehicle to allow the engine to start, even if the remote functions of the fob are working. Both the dealership and a qualified locksmith have the equipment to program this transponder chip.

Find a mobile locksmith or shop on Repairius.