How to Program a 2002 Chevy Blazer Key Fob: Step-by-Step Guide

Is your 2002 Chevy Blazer Key Fob not working, or did you get a new replacement remote? No need to worry about expensive dealership programming! You can easily program your 2002 Chevy Blazer key fob right at home with a simple procedure. This guide will walk you through each step to get your key fob working quickly and effortlessly.

Step-by-Step Programming Instructions for Your 2002 Chevy Blazer Key Fob

Before you begin, make sure you have all the key fobs you want to program for your 2002 Chevy Blazer. This programming sequence will erase all previously programmed remotes, so you’ll need to reprogram all of them, both old and new, in one go.

Here’s how to program your 2002 Chevy Blazer key fob:

  1. Get Inside and Close the Doors: Start by getting into your Chevy Blazer and closing all the doors securely.
  2. Insert the Key: Put your key into the ignition. Do not turn the key to start the engine, just insert it into the ignition cylinder.
  3. Hold the UNLOCK Button: Locate the UNLOCK button on the driver’s side door panel. Press and hold this button down. Do not release it until step 4 instructs you to.
  4. Ignition Cycling: While holding the UNLOCK button, quickly turn the ignition key from the OFF position to the ON position and back to OFF twice. “ON” is the position just before you would start the engine, and “OFF” is where you can remove the key. Do this ignition cycling quickly – ON, OFF, ON, OFF.
  5. Release the UNLOCK Button: Now, release the UNLOCK button on the door. 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 system is ready for programming.
  6. Programming Your First Key Fob: Take the first key fob you want to program. Simultaneously press and hold down both the LOCK and UNLOCK buttons on the key fob. Keep holding them until the vehicle responds by cycling the door locks again. This might take a few moments, especially for a new, unprogrammed remote. Be patient and continue holding for up to 5 minutes if necessary, though usually it’s much quicker. For remotes previously paired with the vehicle, the response will be faster.
  7. Programming Additional Key Fobs: If you have more key fobs to program, repeat step 6 for each additional remote. Make sure to program all the remotes you want to use at this time.
  8. Exit Programming Mode: Once you have programmed all your key fobs, turn the ignition key to the ON position. This action will exit the programming mode.
  9. Test Your Remotes: Remove the key from the ignition and test all of your newly programmed key fobs to ensure they are working correctly by pressing the buttons and verifying the door locks respond.

Troubleshooting Tips

  • Locks Cycle Prematurely: If the door locks cycle in step 4 before you release the UNLOCK button, it means the programming mode was not entered correctly. You will need to repeat the entire procedure from step one, paying close attention to holding the UNLOCK button until after the ignition cycling in step 4.
  • Locks Keep Cycling: If the locks continue to cycle repeatedly before you even release the unlock button, double-check that you are following the steps exactly. If the issue persists, there might be a malfunction in your vehicle’s keyless entry system, and you may need to seek professional assistance.
  • New Remote Takes Longer: Don’t be alarmed if programming a brand new remote takes slightly longer than reprogramming an existing one. Hold the LOCK and UNLOCK buttons patiently for up to 5 minutes if needed in step 6 for a new remote.

By following these instructions, you should be able to easily program your 2002 Chevy Blazer key fob. Enjoy the convenience of your working remote! If you still encounter issues or prefer professional help, consider searching online for “key fob programming near me” to find a local service.

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