Question about 1999 Mercury Grand Marquis
You have to have 2 keys that are already programed in order to program another key. The procedure is cycle 2 programed keys in the ignition switch one at a time pausing 3 secs each time in the run position or until the antitheft light proves out.Then cycle an un-programmed key for 3 secs and the same for any addition key.It will have a limit of 8 keys.
If you do not have 2 already programmed keys then you have to have a scan tool that will perform security access and key programming.
Posted on Mar 10, 2009
Tips for a great answer:
Dec 01, 2015 | 2004 Mercury Grand Marquis
Oct 26, 2015 | Cars & Trucks
Oct 18, 2015 | 1999 Pontiac Grand Am
Jul 15, 2014 | 1997 Mercury Grand Marquis
Jun 29, 2014 | 1999 Mercury Grand Marquis
Jun 14, 2012 | Mercury Grand Marquis Cars & Trucks
Aug 05, 2011 | 1999 Mercury Grand Marquis
Oct 08, 2010 | 2006 Ford Fusion
May 27, 2010 | 1999 Mercury Grand Marquis
689 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: