Disclaimer: The information in this site is provided to you as a free service. We strive at ProgramKeyless.com to have the most current and accurate information. ProgramKeyless.com and its creators assume no responsibility for the accuracy or inaccuracy of the information provided.

spacer

2003 Mercury Grand Marquis Key Fob Programming Instructions

2003 Grand Marquis

  1. Turn ignition from OFF to RUN 4 times within 3 seconds, with the 4th time ending in RUN. Door locks will cycle to confirm programming mode.
  2. Within 20 seconds, press any button on first keyless remote. Door locks will cycle to confirm programming.
  3. Within 20 seconds press any button on second keyless remote. Door locks will cylcle to confirm programming.
  4. Turn ignition to OFF.