Lost your key fob or need to program a new one for your 1999 Chevy Tahoe? Don’t worry, programming a key fob for your 1999 Tahoe can be done at home without a trip to the dealership. This guide provides simple, step-by-step instructions to get your keyless entry working again.
Understanding Your 1999 Tahoe Key Fob System
The 1999 Chevy Tahoe came with a factory keyless entry system. Knowing whether you have a base or luxury model can be helpful, though the programming procedure is generally the same for both. The key fob communicates with your Tahoe’s receiver to lock and unlock doors, and even activate the liftgate window release if your model is equipped. It’s important to program all your remotes at the same time, as the system will only recognize the remotes programmed during the current session.
Step-by-Step Programming Instructions
Here’s how to program your 1999 Chevy Tahoe key fob:
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Locate the Data Link Connector (DLC): The DLC is typically located under the driver’s side dashboard. It’s a 16-pin connector used for diagnostics and, in this case, key fob programming.
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Prepare for Programming: You’ll need to ground pin 4 to pin 8 of the DLC. You can use a paperclip or a jumper wire for this. Note: If the key is in the ON position during programming, the horn chirp will be disabled. If the key is in the OFF position, the horn chirp will be enabled. The horn will chirp when the lock button is pressed twice, indicating successful programming.
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Initiate Programming Mode: With the ignition OFF, ground pin 4 to pin 8 of the DLC. The vehicle should respond by locking and unlocking the doors, and activating the liftgate window release (if equipped) within 2 seconds. This confirms you’ve entered programming mode.
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Program the First Key Fob: Press and hold both the LOCK and UNLOCK buttons simultaneously on the first key fob you want to program. Continue holding until the door locks cycle again (approximately 10 seconds). This indicates the first key fob is programmed.
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Program Additional Key Fobs (if needed): If you have additional key fobs to program, repeat step 4 for each one. You can program up to four key fobs. The system will again respond by locking and unlocking the doors after each successful programming.
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Exit Programming Mode: Remove the ground from the DLC connector (disconnect the paperclip or jumper wire).
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Verify Programming: Test each key fob by pressing the LOCK and UNLOCK buttons to ensure they operate the door locks correctly. Also, test the rear window release button if your Tahoe is equipped with this feature.
Conclusion
Programming your 1999 Tahoe key fob yourself is a straightforward process that can save you time and money. By following these simple steps, you can quickly get your keyless entry system working again. Remember to test all programmed key fobs to ensure proper operation.
