Mercury 2009 Grand Marquis Owner's Manual page 74

Locks and Security
The typical operating range for your remote entry transmitter is
approximately 33 feet (10 meters). A decrease in operating range could
be caused by:
• weather conditions,
• nearby radio towers,
• structures around the vehicle, or
• other vehicles parked next to your vehicle.
The remote entry system allows you
to lock or unlock all vehicle doors
without a key. Note: The remote
entry features operate with the
ignition in any position except in the
on position, when the transmission
is in any gear other than P (Park)
or N (Neutral).
If there are problems with the
remote entry system, make sure to
take ALL remote entry
transmitters with you to the authorized dealer in order to aid in
troubleshooting the problem.
Unlocking the doors
1. Press and release to unlock the driver's door. Note: The interior
lamps will illuminate.
2. Press and release again within five seconds to unlock all the doors.
Locking the doors
Press once to lock all the doors. Upon the first press the doors will
lock and the parklamps/taillamps will flash once.
Press again within three seconds to receive confirmation that the
vehicle was successfully locked. Note: If all vehicle doors and the trunk
are closed upon the second press of the
and the parklamps/taillamps will flash once to confirm the successful
locking.
Upon the second press of the
securely closed the horn will chirp twice to warn that successfully
locking was not complete. The park/taillamps will not flash if any door is
ajar.
74
2009 Grand Marquis (grn)
Owners Guide, 1st Printing
USA (fus)
, the horn will chirp once
, if any door or the trunk is not