Deleting remotes
WARNING: This page is about a different car, the 2008 Acura TL and 2007 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
Turn the ignition switch ON (II), push the transmitter's lock or unlock button within 4 seconds and turn the ignition switch OFF, turn it back ON (II) within 4 seconds and back OFF. Repeat this 2 more times and the locks should cycle when the transmitter button is pushed. Push the same button 5 more times. This will leave only the current remote programmed in the keyless receiver unit.