Lost your 2007 Chevy Trailblazer Key Fob or need to program a new replacement? Don’t worry, programming your key fob is a straightforward process you can do yourself at home without needing to visit a dealership. This guide provides easy-to-follow instructions to get your key fob working with your Trailblazer quickly.
Before you begin, ensure you have all the necessary key fobs you intend to program, as this procedure will program all remotes at once. Follow these steps carefully to program your 2007 Chevy Trailblazer key fob:
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Start in the Driver’s Seat: Make sure all doors of your Chevy Trailblazer are completely closed. Insert your key into the ignition.
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Depress and Hold Unlock: Locate the power UNLOCK button on the driver’s side door panel. Press and hold this button down. Keep holding it until step 9 instructs you to release it.
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Ignition Cycling – Part 1: You will now perform a series of ignition ON and OFF cycles. Do these steps in quick succession:
- Turn the ignition key to the ON position. This is the position just before you would start the engine, where the dashboard lights illuminate.
- Turn the ignition key back to the OFF position.
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Ignition Cycling – Part 2: Repeat the ON and OFF ignition cycle again:
- Turn the ignition key to the ON position once more.
- Turn the ignition key back to the OFF position.
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Release Unlock Button & Listen for the Locks: Release the power UNLOCK button that you have been holding down. At this point, your Chevy Trailblazer should automatically cycle the door locks, locking and then unlocking. This indicates that the vehicle has successfully entered key fob programming mode.
- Troubleshooting: If the door locks do not cycle automatically after releasing the unlock button, the vehicle has not entered programming mode. If this happens, remove the key from the ignition, open the driver’s side door, and repeat the entire procedure from step 1. It’s crucial to release the unlock button before the locks cycle to confirm programming mode activation.
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Program the First Key Fob: Take the first key fob you want to program. Press and hold both the LOCK and UNLOCK buttons simultaneously on the key fob. Continue holding both buttons. Within a few seconds, and potentially up to 30 seconds, the doors should lock and unlock again, confirming that this key fob has been successfully programmed.
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Program Additional Key Fobs: If you have more key fobs to program, including any existing remotes you want to continue using, repeat step 6 immediately for each additional key fob. It’s important to program all key fobs you want to use in this session, as the system may clear previously programmed fobs.
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Exit Programming Mode: Once you have programmed all desired key fobs, turn the ignition key to the ON position one last time. This action will exit the key fob programming mode.
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Test Your Key Fobs: Remove the key from the ignition and test each key fob to ensure they are working correctly. Try locking and unlocking the doors, and if your fob has a panic button, test that as well.
Congratulations! You have successfully programmed your 2007 Chevy Trailblazer key fob. If you require a replacement key fob for your Chevy Trailblazer or other vehicles, visit Keylessentryremotefob.com for a wide selection and great deals.
