I have a just purchased a 1998 GMC Yukon SLE and
the Keyless Entry is working, but not like it
should, you see if you hit the lock button twice
it is supposed to make the horn chirp as
confirmation of security system, but it does
not.The horn has been checked and is working
properly though. I have also checked fuses and
relays and I can't figure out what is the
problem, Can anyone help me with info on how to
fix this problem or how to reprogram my keyless
entry, before I decide to consult the dealership
with this issue.