Key FOB programming

Tiny
BRIANTTT
  • 1999 GMC YUKON
  • V8
  • 4WD
  • AUTOMATIC
  • 175,000 MILES

1999 GMC Denali. I'm trying to program a new key fob. Everyone seems to agree that I should ground pin 4 to pin 8 on the Data Link Port to go into programming mode. Mine doesn't have a usable pin in slot 8. The "hold the unlock while on-off-on-off with the key" process also doesn't seem to work either. Any thoughts?

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Thursday, July 28th, 2011 AT 4:34 PM

2 Replies

Tiny
FIXITMR
  • MEMBER

Did ya get it done? What is/was solution?

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Wednesday, October 19th, 2011 AT 10:14 PM
Tiny
BRIANTTT
  • MEMBER

I have not. There have been several "key on, off, lock, hold this, hold that, dance, key on, push play on the CD, versions of solutions on the web (joking of course but sometimes it seems that way!). Tried them all. No positive results. Funny that you should ask now in that I accidentally took the one key set with a fob with me on a business trip. I'd kinda given up until yesterday. New thoughts!

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Wednesday, October 26th, 2011 AT 12:14 AM

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