How do you program 2005 Buick Lacrosse remote?

Answer 1

To program a 2005 Buick Lacrosse remote, first, insert the key into the ignition and turn it to the "On" position without starting the engine. Press and hold the "Unlock" button on the driver's side door while turning the ignition switch from "On" to "Off" twice. Release the "Unlock" button, then press and hold both the "Lock" and "Unlock" buttons on the remote for about 15 seconds. Finally, turn the ignition back to "On" and the remote should be programmed.