2005 Mercury Grand Marquis Start

Seating and Safety Restraints 91
Seating 91
Safety restraints 96
Airbags 110
Child restraints 121
Tires, Wheels and Loading 132
Tire Information 132
Changing tires 137
Lug Nut Torque 143
Vehicle loading 153
Trailer towing 159
Recreational towing 162
Driving 163
Starting 163
Brakes 167
Traction control 170
Air suspension 172
Transmission operation 173
Roadside Emergencies 180
Getting roadside assistance 180
Hazard flasher switch 181
Fuel pump shut-off switch 181
Fuses and relays 182
Jump starting 190
Wrecker towing 195
Customer Assistance 196
Reporting safety defects (U.S. only) 204
Cleaning 205
Table of Contents
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2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)

WARNING LIGHTS AND CHIMES
Standard instrument cluster
Optional instrument cluster
Warning lights and gauges can alert you to a vehicle condition that may
become serious enough to cause expensive repairs. A warning light may
illuminate when a problem exists with one of your vehicle’s functions.
Many lights will illuminate when you start your vehicle to make sure the
bulb works. If any light remains on after starting the vehicle, have the
respective system inspected immediately.
Check engine:TheCheck engine
indicator light illuminates when the
ignition is first turned to the ON
position to check the bulb. Solid
illumination after the engine is
started indicates the On Board Diagnostics System (OBD-II) has
detected a malfunction. Refer toOn board diagnostics (OBD-II)in the
CHECK
ENGINE
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
10

Maintenance and Specificationschapter. If the light is blinking, engine
misfire is occurring which could damage your catalytic converter. Drive
in a moderate fashion (avoid heavy acceleration and deceleration) and
have your vehicle serviced immediately.
Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
Electronic throttle control:
Illuminates when the engine has
defaulted to a ’limp-home’ operation.
Report the fault to a dealer at the
earliest opportunity.
Check fuel cap:Illuminates when
the fuel cap may not be properly
installed. Continued driving with
this light on may cause the Check
engine warning light to come on.
Refer toFuel filler capin theMaintenance and Specifications
chapter.
Brake system warning light:
•Standard instrument cluster
•Optional instrument cluster
To confirm the brake system
warning light is functional, it will
momentarily illuminate when the
ignition is turned to the ON position when the engine is not running, or
in a position between ON and START, or by applying the parking brake
when the ignition is turned to the ON position. If the brake system
warning light does not illuminate at this time, seek service immediately
from your dealership. Illumination after releasing the parking brake
indicates low brake fluid level and the brake system should be inspected
immediately by your servicing dealership.
CHECK
FUEL
CAP
P!
BRAKE
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
11

HEADLAMP CONTROL
Turns the lamps off.
Turns on the parking
lamps, instrument panel lamps,
license plate lamps and tail lamps.
Turns the headlamps on.
Autolamp control
The autolamp system provides light
sensitive automatic on-off control of
the exterior lights normally
controlled by the headlamp control.
The autolamp system also keeps the
lights on for a predetermined period
of time after the ignition switch is
turned to OFF.
•To turn autolamps on, rotate the
control counterclockwise to the
next position from OFF.
•To turn autolamps off, rotate the control clockwise past OFF to the
parking lamp position
, then back to OFF.
The headlamps will turn on under the following conditions:
1. Headlamp switch is turned to the “headlamps on position”.
2. With the ignition in ON or START, wipers turned on and the headlamp
switch in the autolamp position.
Daytime running lamps (DRL) (if equipped)
Turns the lowbeam headlamps on with a reduced output. To activate:
•the key must be in the ON position,
•the parking brake released, and
•the headlamp control is in the OFF or Parking lamps position.
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
38

3. Press and hold the MODE control
until VAR appears in the display,
then release. The display should
show the current zone number.
4. Press the MODE control until the
desired zone number appears. The
display will flash and then return to
normal operation. The zone is now
updated.
Compass calibration adjustment
Perform this adjustment in an open
area free from steel structures and
high voltage lines:
1. Press and hold the MODE control
until CAL appears in the display
(approximately eight seconds) and
release.
2. Drive the vehicle slowly (less
than 5 km/h [3 mph]) in circles until
CAL indicator turns off in about 2–3 complete circles.
3. The compass is now calibrated.
OVERHEAD CONSOLE WITH MOON ROOF (IF EQUIPPED)
The appearance of your vehicle’s overhead console will vary according to
your option package. Some of the features in the overhead console
include Compass, Homelink, and Moon Roof controls.
Compass mode
The compass reading may be affected when you drive near large
buildings, bridges, power lines and powerful broadcast antenna. Magnetic
or metallic objects placed in, on or near the vehicle may also affect
compass accuracy.
1. Turn ignition to the ON position.
2. Start the engine.
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
52

4. Determine which magnetic zone
you are in by referring to the zone
map.
5. Repeatedly press and release the
RESET button to scroll through the
zones 1–15 until the desired zone is
displayed.
6. Press the MODE button to save
the new zone setting and return to
the compass normal mode.
Note:The compass exits the zone
setting mode and returns to its previous setting after one minute of no
activity.
Note:If power is interrupted during the zone setting process, the
compass resets to the same zone it was set to before the zone change
process was started.
Calibration mode
For optimum calibration, turn off all electrical accessories (heater/air
conditioning, wipers, etc.) and make sure all vehicle doors are shut.
To calibrate the compass:
1. Press and release the MODE
button until the compass directional
heading is displayed.
2. Hold down the MODE button for
10 seconds to enter the calibration
mode. The display will read PRESS
RESET TO DECAL.
3. Release the MODE button.
1 2 3
4
5
6 7 8 9 101112 13 14 15
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
54

4. Press the RESET button to
de-calibrate the compass. The
display will read CIRCLE SLOWLY
TO CALIBRATE for a few seconds
and then display a direction with
CAL displayed on the right side.
5. Drive the vehicle in a tight circle
in a magnetically clean area such as
an open parking lot.
6. Slowly drive the vehicle in a circle (less than 3 mph [5 km/h]). This
will take up to three circles to complete calibration.
7. The correct compass heading will be displayed when the compass is
calibrated.
Note:If the RESET button is not pressed, the compass will exit
calibration mode after three minutes of no activity and the original
calibration data will be restored.
Note:If power is interrupted during the calibration process, the compass
resets to the original calibration data from before the calibration process
started.
HomeLinkwireless control system (if equipped)
The HomeLinkWireless Control System, located on the overhead
console, provides a convenient way to replace up to three hand-held
transmitters with a single built-in device. This feature will learn the radio
frequency codes of most transmitters to operate garage doors, entry gate
operators, security systems, entry door locks, and home or office lighting.
When programming your HomeLinkWireless Control System to a
garage door or gate, be sure that people and objects are out of the way
to prevent potential harm or damage. Do not use the HomeLink
Wireless Control System with any garage door opener that lacks safety
stop and reverse features as required by U.S. federal safety standards
(this includes any garage door opener model manufactured before April
1, 1982). A garage door which cannot detect an object, signaling the
door to stop and reverse, does not meet current U.S. federal safety
standards. For more information, contact HomeLinkat:
www.homelink.comor1–800–355–3515.Retain the original
transmitter for use in other vehicles as well as for future programming
procedures (i.e. new HomeLinkequipped vehicle purchase). It is also
suggested that upon the sale of the vehicle, the programmed HomeLink
buttons be erased for security purposes, refer toProgrammingin this
section.
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
55

Place the key in the ignition and
cycle from 1 (OFF/LOCK) to 3 (ON)
eight times in rapid succession
within 10 seconds. After doors
lock/unlock, press any control on all
transmitters (up to four). After
pressing the control on each remote
transmitter, the door will lock and
unlock. If programming multiple
remote transmitters, you must press
the control buttons on each remote transmitter within 7 seconds of each
other to remain in programming mode. When completed, turn the
ignition to 1 (OFF/LOCK).
All transmittersmustbe programmed at the same time.
•When completed, turn the ignition to the 1 (OFF/LOCK) position and
wait at least 20 seconds in order to use the recently programmed
transmitter(s).
•Alltransmittersmustbe programmed during the same programming
cycle. A transmitter that is not programmed within the same
programming cycle will be erased and will no longer operate your
vehicle’s locks. If this occurs, you will have to reprogram all the
transmitters again, as you cannot just “add” a transmitter.
Illuminated entry
The interior lamps illuminate when the remote entry system is used to
unlock the door(s) or sound the personal alarm.
The illuminated entry system will turn off the interior lights if:
•the ignition switch is turned to the 2 (ACCESSORY) or 4 (START)
positions, or
•the remote transmitter unlock control is pressed, or
•after 25 seconds of illumination.
The dome lamp control mustnotbe set to theoffposition for the
illuminated entry system to operate.
The inside lights will not turn off if:
•they have been turned on with the dimmer control, or
•any door is open.
The battery saver will shut off the interior lamps 30 minutes after the
last door is closed, or after 10 minutes if the last door is left open.
4
3
2
1
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Locks and Security
84