I program mine standing next to the car.
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Navigator
Joined: Dec 2005
Posts: 9
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I have a 1999 C5 and my key fob stopped working. I followed the owners mannual to reprogram as well as changing the battery in the fob. When I follow the instruction the Readout does not tell me that the Fob has been learned, The fob initially works but as soon as I remove the key the fob will no operate anything. Any advise?
Racer
Joined: Aug 2003
Posts: 348
Likes: 1
From: Sacramento CA
try doing it the old fashioned way, don't mess with the DIC. Put the key in, turn it to on and the hold the lock & unlock button for approximately 8 seconds. I don't know if this will fix it but worth a try
Instructor
Joined: Jul 2005
Posts: 236
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From: CT
Sounds like the fob is not communicating with the car, if the DIC does not acknowledge that you are trying to program a key fob. Something is up. Maybe like Huttler says try it the old-fashion way. Holding the lock and unlock button together for about 5 to 10 seconds until you hear the car beep. But if you still have a problem there is a thread on here about some guys resoldering a few points on the circuit board in their fobs and getting them to operate again.
Tech Contributor
Joined: Jan 2007
Posts: 19,360
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From: Dyer, IN
Instructor
Joined: Aug 2008
Posts: 204
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From: Lake Placid Florida
Key fob...
I had the same problem with the fob on my '98 coupe, did the same things with replacing the battery, did the relearn thing and continously did the lock/unlock at the same time and finally removed the fob from my key ring till I could buy a new one. Then thanks to this forum, found a post from C599, Senior member, on 12-18-2008; 10:37 pm outlining his procedure for either soldering or super glueing the battery points back together inside the fob. Since I'm an old F!@#T my hands are a bit too shakey to try to solder and since I was at the point of throwing the original unit away and buying a new one, I tried the fix with super glue. It worked just fine and have been using it for 2-3 months now with no problem, even the passive feature works just fine. I have no idea how to link the post here, but, here's the information...Title:Legendary problem solved...by C599, CF Senior member, at 12:18-2008, 1037pm. 2 pages of good information (I printed it out...remember I'm old) with pictures and very good info on how to do it. Try it. 
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