2002 impala RKE problem

With this car I'm not sure of anything.My girlfriend bought it used from a dealership.We went to a chevy dealer and bought a new remote that was suppose to be for that car but it did not work either.I was told to program it by holding the lock and unlock buttons down until I hear a beep from the horn.It does not do anything.Is there an antanna for the receiver?If so where is it located.I guess to get to this receiver I have to go in from the bottom of the dash.What does it look like?I am great with electrical stuff,but the only reason I'm doing this is because they told me it would cost 500+dollars to track down the problem.Anyway thanks for the help.

   Document ID# 682874 2002 Chevrolet Impala        -------------------------------------------------------------------------------- Transmitter Programming Important: All transmitters which are to be recognized by the remote control door lock receiver (RCDLR) must be programmed in a single programming sequence. If the system is placed in program mode it will erase all previously programmed transmitters upon the receipt of the programming signal from the first transmitter. Up to 4 transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other vehicles that are in the keyless entry program mode. This prevents the programming of the transmitters to the incorrect vehicle. Install a scan tool. Use the scan tool in order to access programming: Vehicle Control System/Computer Integrating System/Module Setup/BCM/Program Key Fobs. Press the START soft key on the scan tool. Important: The scan tool must stay connected until all of the transmitters are programmed. Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of 5-10 seconds, the scan tool will indicate that the transmitter is programmed. Repeat the previous step in order to program up to 4 transmitters. Remove the scan tool. Operate the transmitter functions in order to verify correct system operation. --------------------------------------------------------------------------------    Document ID# 682874 2002 Chevrolet Impala       

51669 wrote: < language=>postamble(); I was told to program it by holding the lock and unlock buttons down until I hear a beep from the horn.It does not do anything..

this is the procedure to re sync the remotes. this is not the programming sequence. you need a tech 2 to program the remotes. any dealer whould program the remotes for an hours labor. we do it for a half hour here, but most charge an hour.