Here are the programming instructions for a 1998 GMC Sierra Key Fob Remote. If you need an extra Key Fob or Replacement Fob for any vehicle you might have visit us at Keylessentryremotefob.com You can also leave comments or suggestions at the bottom of this blog and if you like what we provide please forward on to your friends & family; people like you are our best advertising tool!
ORDER THIS KEY FOB PART NUMBER HERE: 16245100-29
1. Locate the Data Link Port. It is located under dash drivers side. Be sure you know which pins are 8 and 4.
(Notice port is wider on top row)
2. Make sure there are metal contact pins in terminals 8 and 4. Connect 8 to 4 with a suitable jumper wire (leave the jumper wire connected throughout the programming procedure). Make sure you know which terminals are 8 and 4. The vehicle will respond by locking and unlocking the doors to signify entering of programming mode.
3. Press and hold both the LOCK and UNLOCK buttons together on the first transmitter to be programmed. After about 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 on the remaining transmitters to be programmed.
5. Remove jumper wire applied to the OBDII Port.
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