I had the same problem, and since I couldn't find the answer here, I had to figure it out myself. Luckily, I was able to find this site again, so here's what worked for me.
Push the Setup button three times, until your driver display says something like "Press Reset for system check".
Then push Reset. The system check will start, rotating through a series of checks.
About the fifth or sixth check will be the tire pressure. It'll say something like "Hold Reset if tires are OK". While that's up, hold the Reset button. After 3 or 4 seconds, the tire warning light will click off. You need to be ready for it, because you don't get very long.
Sorry if I don't have the prompts exactly right. I remembered them the best I could, and since I held in the Reset button, I don't get the one about the tires being OK any more.
How to reset the low tire pressure warning if the vehicle does not have the "Message Center"
On a Mercury Monterey ( 2004 / 05 / 06 / 07 ) The brake fluid reservoir is in the engine compartment It is on the drivers side of the engine compartment near the firewall and the engine air filter housing
( 26 gallons ) U.S.
An issue relating the transmission.
In the right front passenger footwell , by the kick panel
None, until the Monterey, which was only sold 2004-2007.
On a 2004 Mercury Grand Marquis : The fuel pump shut off switch ( inertia switch ) which has a reset button on top is located : ( in the trunk , behind the trunk liner on the drivers side , near the drivers side rear tail light , there is an access hole )
Since the Monterey is the direct spin off of the 2003 Windstar, the information for the same question regarding the Windstar might be very applicable. (see below)
"Assuming" the window is not working, refer to the "Related Question" below - although written for the Windstar, it's most likely to be very applicable to the Monterey (a direct descendant of the Windstar
Where is the fuel relay switch in a 2004 range rover located
Where is the fuel relay switch located on a 2004 range rover
where is the oil pressure switch located on a 2004 monte carlo