Lost or need to replace your 2008 Gmc Sierra Key Fob? No need to rush to a dealership and spend a fortune. Programming a new key fob for your 2008 GMC Sierra can be done right at home with a few simple steps. This guide provides easy-to-follow instructions for programming your key fob, ensuring you regain keyless entry and remote start functionality quickly and efficiently.
Programming Your 2008 GMC Sierra Key Fob with Driver Information Center (DIC)
If your 2008 GMC Sierra is equipped with Driver Information Center buttons, follow these steps to program your key fob:
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Turn the Ignition to ON: Insert your key into the ignition and turn it to the “ON” position. This will allow you to access the Driver Information Center through the buttons on your dashboard.
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Access Vehicle Information Menu: Use the vehicle information button, typically located on the steering wheel or instrument panel, to scroll through the Driver Information Center menus until you see PRESS TO RELEARN REMOTE KEY displayed.
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Initiate Remote Learning Mode: Once PRESS TO RELEARN REMOTE KEY is displayed, press and hold the set/reset button. Continue holding until the Driver Information Center displays REMOTE KEY LEARNING ACTIVE. Your vehicle is now in programming mode and ready to learn the new key fob.
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Program the Key Fob: Take your new key fob and simultaneously press and hold both the LOCK and UNLOCK buttons. Keep holding them for approximately 15 seconds. You should hear a chime sound, indicating that the key fob has been successfully programmed.
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Program Additional Key Fobs (Optional): If you have additional key fobs to program, repeat step 4 immediately for each additional remote. Your 2008 GMC Sierra can accommodate up to eight key fobs.
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Exit Programming Mode: To finalize the programming process, turn the ignition key to the “OFF” position and remove the key from the ignition.
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Test Your Key Fob: Thoroughly test all buttons on the newly programmed key fob to ensure they are working correctly, including lock, unlock, and remote start (if applicable).
Programming Your 2008 GMC Sierra Key Fob Without Driver Information Center (DIC)
If your 2008 GMC Sierra model does not have Driver Information Center buttons, you can still program your key fob using the trip odometer reset stem. Here’s how:
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Prepare the Vehicle: Ensure your vehicle is in Park (P) and turn the ignition key to the “ON” position. This is the position right before you would crank the engine to start it.
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Enter Relearn Remote Key Mode: Locate the trip odometer reset stem, usually protruding from the instrument cluster. Press and release the trip odometer reset stem repeatedly until the display shows RELEARN REMOTE KEY.
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Activate Remote Learning: Press and hold the trip odometer reset stem for approximately three seconds. The display will change to REMOTE KEY LEARNING ACTIVE, indicating the vehicle is ready to program a key fob.
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Program the Key Fob: On your first key fob, press and hold both the LOCK and UNLOCK buttons simultaneously for about 15 seconds. A chime will sound to confirm successful programming.
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Program Additional Key Fobs (Optional): If you have more key fobs to program, repeat step 4 immediately for each additional remote. Remember, you can program up to eight remotes for your 2008 GMC Sierra.
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Exit Programming Mode and Test: Turn the ignition key to the “OFF” position and remove it. Test all the functions of each programmed key fob to verify they are working as expected.
By following these straightforward instructions, you can easily program your 2008 GMC Sierra key fob and restore the convenience of remote access to your vehicle. If you encounter any issues or have further questions, consult your owner’s manual or seek assistance from a qualified automotive technician.
