remote key sync 2000 lw2

How can I re program my key remote for the 2000 wagon . Wife's keyless
works great, Bought one off internet and it won't work either. Dealer
wants 36.50 to program it. Dale

 

unfortunately, AFAIK, this requires use of a computerized tool called "tech
II" which is very expensive, therefore only mechanics will have it. when
setting up a new remote, both remotes must be synced with the same code and
the car. If you know of any other mechanic who works on GM vehicles, perhaps
they can set up the remotes for you. The good nobody can just buy a
remote on ebay and open up your saturn.

marx404

 

You do not need a tech 2 tool to do it and your car will support up to
4 keyless remotes. If you jumper over pins 4 and 8 on OBD2 connector
it will place car in learning mode and teach it to work with. Horn
will sound to confirm mode. Within 30 second of horn sounding, press
and hold both lock and unlock button on fob until car responds by
cycling locks and sounding horn. You may add up to 4 of them this way.
When done, remove jumper from pin 4 and 8. No rocket science needed
here.