Replacement key programming instructions needed

1999 BUICK PARK AVENUE
150,000 MILES • AUTOMATIC
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PMCGRAW
  • MEMBER
  • 1 POST
How to program a replacement master key?
Nov 25, 2020 at 1:52 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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KASEKENNY
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 18,907 POSTS
I am attaching the process for the PASS key and the process for an additional key.

Let us know if you need other info. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed. Thanks
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Nov 25, 2020 at 2:09 PM
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