How to Program a 1999 GMC Yukon Ignition Smart Key Fob

Description

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Step-by-Step Programming Instructions:

1. Find the Data Link Port beneath the driver’s side dashboard. Identify pins 8 and 4 (noting that the port is wider on the top row).
2. Ensure metal contact pins are present in terminals 8 and 4. Link terminal 8 to 4 using a suitable jumper wire (keep the wire connected throughout the programming process). Confirm awareness of terminals 8 and 4. The vehicle will indicate entry into programming mode by locking and unlocking the doors.
3. Simultaneously press and hold the LOCK and UNLOCK buttons on the first transmitter to be programmed. After approximately 15 seconds, the vehicle will respond by locking and unlocking the doors. Release the buttons on the transmitter.
4. Within one minute, repeat the previous step for the remaining transmitters to be programmed.
5. Remove the jumper wire from the OBDII Port.

to purchase Auto Keys, Fobs, Remotes, Shell/Cases & Related products for 1999 GMC Yukon