Is your 2004 GMC Sierra key fob no longer working, or did you get a replacement and need to program it? You’ve come to the right place! This guide provides clear, easy-to-follow instructions on how to program your 2004 Gmc Key Fob yourself. No need to visit a dealership right away – you can often handle this process right in your driveway.
Before we begin, it’s important to note that this programming procedure is specifically for the 2004 GMC Sierra and compatible models using the FCC ID LHJ011 or part numbers 15186201, 15132197, 10377295, 15186203, 21997127, and 15186200. If your key fob has a different FCC ID or part number, these instructions may not be applicable.
This process will erase all previously programmed remotes, so ensure you have all the key fobs you intend to use with your 2004 GMC Sierra present before starting. You will need to program all of them in one session.
Here’s how to program your 2004 GMC key fob:
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Prepare Your Vehicle: Begin by closing all the doors on your 2004 GMC Sierra. Insert your key into the ignition, but do not turn it on yet.
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Initiate Programming Mode: Press and HOLD the UNLOCK button located on the driver’s side door panel. Do not release the button until instructed in step 4.
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Cycle the Ignition: While holding the UNLOCK button, quickly turn the ignition key from the OFF position to the ON position and back to OFF twice in rapid succession. “ON” is the position just before starting the engine, and “OFF” is the position where you can remove the key. Do not start the engine.
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Release Unlock Button: Release the UNLOCK button on the door panel. If you have successfully entered programming mode, the door locks will cycle from LOCK to UNLOCK automatically. This lock cycling is your confirmation that the vehicle is ready to program key fobs.
Important: If the door locks cycle before you release the UNLOCK button, the programming mode has not been activated. You’ll need to repeat steps 1 through 4 carefully. If the locks continue to cycle prematurely, double-check that you are following the steps precisely, or there might be an issue with your vehicle’s keyless entry system.
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Program Your Key Fobs: Take the first key fob you want to program. Simultaneously press and hold both the LOCK and UNLOCK buttons on the key fob. Continue holding both buttons until the vehicle responds by cycling the door locks again. This might take up to 5 minutes when programming a new, unprogrammed remote. If you are reprogramming a previously paired remote, the response will usually be faster.
Repeat step 5 for each additional key fob you wish to program, including any existing remotes you want to continue using.
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Exit Programming Mode: Turn the ignition key to the ON position. This action will exit the key fob programming mode.
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Test Your Remotes: Remove the key from the ignition and test all programmed key fobs to ensure they are working correctly. Try locking and unlocking the doors, and if your fob has other functions like remote start or panic button, test those as well.
Congratulations! You have successfully programmed your 2004 GMC key fob. If you encounter any difficulties or prefer professional assistance, you can search online for local key fob programming services in your area.
If you need a replacement key fob for your 2004 GMC Sierra or any other vehicle, visit Keylessentryremotefob.com for a wide selection of key fobs and remotes. You can also find the specific key fob part number 15186201 here.
