Programming a new key fob for your 2008 car might seem daunting, but it can be done without special tools. This guide outlines a simple DIY method for programming a new transmitter for select 2008 GM models, potentially saving you a trip to the locksmith. This method involves utilizing the car’s built-in programming mode and requires no external OBD programmer tool.
Programming Your 2008 Car Key Fob: A Step-by-Step Guide
This process has been verified to work on some 2008 Pontiac G6 models but may work for other GM vehicles as well. Always consult your owner’s manual for model-specific instructions. Remember, this process erases all previously programmed key fobs, so you’ll need to program all your fobs, old and new, during this session. Only program one vehicle at a time to avoid accidentally programming a key fob to multiple cars.
Initiating Programming Mode
- Sit in the passenger seat for easier access to the ignition and door.
- Ensure all doors are closed and the key is out of the ignition.
- Locate and remove the MALL PGM fuse from the fuse box. Consult your owner’s manual for its exact location.
- Quickly cycle the ignition key from OFF to ACC twice within one second.
- Open and close any door. You should hear a chime indicating the car has entered programming mode. If not, repeat steps 1-5.
Programming the Key Fob
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Once in programming mode, press and hold both the LOCK and UNLOCK buttons on your new key fob simultaneously for 14 seconds. You may hear a chime around the 7-second mark, confirming synchronization, and another at 14 seconds indicating successful programming.
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Repeat this step for each additional key fob, including any old ones you want to continue using.
Completing the Process
- Remove the key from the ignition.
- Reinstall the MALL PGM fuse in the fuse box.
- Test all programmed key fobs to ensure they lock and unlock the doors correctly.
This DIY method offers a cost-effective solution for programming a replacement or additional car key fob for your 2008 vehicle without needing specialized tools. While successful for some GM models, remember to always refer to your owner’s manual for specific instructions or consult a professional locksmith if you encounter any difficulties. This method eliminates the need for expensive car key fob DIY OBD programmer tools, saving you time and money.
