Page 8 of 280
These are some of the symbols you may see on your vehicle.
Vehicle Symbol Glossary
Safety Alert
See Owner’s Guide
Fasten Safety BeltAirbag - Front
Airbag - SideChild Seat Lower
Anchor
Child Seat Tether
AnchorBrake System
Anti-Lock Brake SystemParking Brake System
Brake Fluid -
Non-Petroleum BasedParking Aid System
Stability Control SystemSpeed Control
Master Lighting SwitchHazard Warning Flasher
Fog Lamps-FrontFuse Compartment
Fuel Pump ResetWindshield Wash/Wipe
Windshield
Defrost/DemistRear Window
Defrost/Demist
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Introduction
8
Page 196 of 280

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse Panel
Description
1 10A Ignition (START) - Starter relay coil,
DTRS
2 7.5A Power mirrors, Door lock switches,
Mirror switch, Keypad switch, Decklid
switch, Adjustable pedal switch, DDM,
Cluster
3 5A Ignition (START) - Audio mute
4 10A LCM (switch illumination), Autolamp
sensor
5 7.5A Ignition (ON/ACC) - LCM
6 7.5A LCM
7 10A Ignition (ON/ACC) - Wiper module
8 10A Electronic Automatic Temperature
Control (EATC) module (vehicles
equipped with EATC only)
9 7.5A Ignition (ON/ACC) - Door lock switch
illumination, Heated seat switch
illumination, Moon roof, Overhead
console, Radio, Antenna,
Electrochromatic mirror, Window relay
coil
10 15A Hazards
11 15A Ignition (ON) - Turn signals
12 15A Audio
13 10A Ignition (ON) - Anti-lock Brake System
(ABS) module, Rear Air Suspension
Module (RASM), Variable Assist Power
Steering (VAPS), Cluster
14 15A Adjustable pedals
15 10A Ignition (ON) - EATC module, A/C mode
switch (vehicles equipped with manual
A/C only), A/C blower relay coil
16 20A Cigar lighter, OBD II
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
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Page 197 of 280

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse Panel
Description
17 10A Ignition (ON) - A/C mode switch
(vehicles equipped with manual A/C),
Blend door, Heated seat modules, BTSI
(Floor-shift transmission)
18 15A Lighting control module (interior
lighting)
19 10A LCM (Left-hand low beam)
20 10A Ignition (ON/START) - Back-up lamps
21 10A LCM (Right-hand low beam)
22 10A Ignition (ON/START) - Restraint Control
Module (RCM), Occupant Classification
Sensor (OCS), Passenger Air bag
Deactivation Indicator (PADI)
23 15A Multi-function switch (Flash-to-pass),
LCM (High beams)
24 10A Ignition (ON/START) - Passive
Anti-Theft System (PATS) module,
Powertrain Control Module (PCM) relay
coil, Fuel relay coil, Ignition coil relay
coil
25 15A LCM (Park lamps, corner lamps, license
lamps)
26 10A Ignition (ON/START) - Cluster, LCM,
Overdrive cancel switch
27 — Not used
28 7.5A Brake signal, LCM (BTSI), ABS
29 — Not used
30 — Not used
31 5A Key in (LCM)
32 — Not used
33 — Not used
Relay 1 Full ISO relay Window relay
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
197
Page 201 of 280

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box Description
601 20A Circuit
breakerPower seats, Lumbar
602 20A Circuit
breakerPower windows relay feed (RUN/ACC)
* Mini fuse ** Cartridge fuse
Relays
Relays are located in the power distribution box and should be replaced
by an authorized dealer.
CHANGING A FLAT TIRE
If you get a flat tire while driving:
•do not brake heavily.
•gradually decrease the vehicle’s speed.
•hold the steering wheel firmly.
•slowly move to a safe place on the side of the road.
Your vehicle may be equipped with a conventional spare tire that is
different in one or more of the following: type, brand, size, speed rating
and tread design. If this is the case, this dissimilar spare tire is still rated
for your vehicle loads (GAWR and GVWR). This temporary spare tire is
not equipped with a Tire Pressure Monitor System (TPMS) sensor.
Note:The tire pressure monitoring system (TPMS) indicator light will
illuminate when the spare is in use. To restore the full functionality of
the TPMS system, all road wheels equipped with the tire pressure
monitoring sensors must be mounted on the vehicle.
Have a flat tire serviced by an authorized dealer in order to prevent
damage to the TPMS sensor, refer toTire Pressure Monitoring System
(TPMS)in theTires, Wheels, and Loadingchapter. Replace the spare
tire with a road tire as soon as possible. During repairing or replacing of
the flat tire, have the authorized dealer inspect the TPMS sensor for
damage.
The use of tire sealants may damage your Tire Pressure
Monitoring System and should not be used.
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
201
Page 274 of 280

programming entry code .........92
Keys .......................................84, 97
positions of the ignition .........173
L
Lamps
autolamp system .......................38
bulb replacement
specifications chart ..................44
daytime running light ...............39
fog lamps ...................................39
headlamps .................................38
headlamps, flash to pass ..........39
instrument panel, dimming .....40
interior lamps .....................42–45
replacing bulbs .........................45
Lane change indicator
(see Turn signal) ........................42
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........180
Limited slip axle
(see Traction Loc) ....................185
Load limits .................................163
Locks
autolock .....................................85
childproof ..................................86
doors ..........................................84
Lubricant specifications ...........263
Lug nuts ....................................207
Lumbar support, seats .............104
M
Message center ...........................74
english/metric button ...............78
system check button ................77
warning messages .....................79
Mirrors ...................................63–64automatic dimming rearview
mirror ........................................63
fold away ...................................64
heated ........................................64
side view mirrors (power) .......64
Moon roof ....................................69
Motorcraft parts ........228, 245, 262
O
Octane rating ............................250
Oil (see Engine oil) ..................234
P
Parking brake ............................180
Parts (see Motorcraft parts) ....262
Passenger Occupant
Classification Sensor .................107
Pedals (see Power adjustable
foot pedals) .................................65
Power adjustable foot pedals .....65
Power distribution box
(see Fuses) ...............................198
Power door locks ..................84–85
Power mirrors .............................64
Power point .................................61
Power steering ..................183–184
fluid, checking and adding ....258
fluid, refill capacity ................263
Power Windows ...........................62
R
Radio ..........................18, 20, 23, 28
Rear window defroster ...............37
Relays ................................194, 201
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Index
274