I'm not sure he even has a GM key fob / remote.
That would be my first question.
And the second question is did you get an Owner's Manual with the car when you bought it.?
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98 Riv, 102K Miles, EBC, LS1 Ft.Calipers, STB, Addco Rr Sway Bar, 180* stat., SSAC Headers, HF Cat, 1.9's,
105# springs, MPS 3.4, DHP tuned by the Deekster.