Mercury Grand Marquis 1998 s Repair Manual

To prevent the risk of injury, make sure children sit where they
can be properly restrained.
Never let a passenger hold a child on his or her lap while the
vehicle is moving. The passenger cannot protect the child from
injury in a collision.
All occupants of the vehicle, including the driver, should always
wear their safety belts.
It is extremely dangerous to ride in a cargo area, inside or
outside of a vehicle. In a collision, people riding in these areas
are more likely to be seriously injured or killed. Do not allow people to
ride in any area of your vehicle that is not equipped with seats and
safety belts. Be sure everyone in your vehicle is in a seat and using a
safety belt properly.
Each seating position in your vehicle has a specific safety belt
assembly which is made up of one buckle and one tongue that
are designed to be used as a pair. 1) Use the shoulder belt on the
outside shoulder only. Never wear the shoulder belt under the arm. 2)
Never swing it around your neck over the inside shoulder. 3) Never use
a single belt for more than one person.
Combination lap and shoulder belts
1. To fasten, insert the tongue into
the slot in the buckle.
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61

2. To unfasten, push the red release
button and remove the tongue from
the buckle.
The front and rear outboard safety restraints in the vehicle are
combination lap and shoulder belts. The front and rear seat passenger
outboard safety belts have two types of locking modes described below:
Vehicle sensitive mode
The vehicle sensitive mode is the normal retractor mode, allowing free
shoulder belt length adjustment to your movements and locking in
response to vehicle movement. For example, if the driver brakes
suddenly or turns a corner sharply, or the vehicle receives an impact of 8
km/h (5 mph) or more, the combination safety belts will lock to help
reduce forward movement of the driver and passengers.
In this mode, the shoulder belt is automatically pre-locked. The belt will
still retract to remove any slack in the shoulder belt.
The automatic locking mode is not available on the driver safety belt.
When to use the automatic locking mode
²When a tight lap/shoulder fit is desired.
²Anytimea child safety seat is installed in the vehicle. Refer toSafety
Restraints for ChildrenorSafety Seats for Childrenlater in this
chapter.
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62

How to use the automatic locking mode
²Buckle the combination lap and
shoulder belt.
²Grasp the shoulder portion and
pull downward until the entire
belt is extracted.
²Allow the belt to retract. As the belt retracts, you will hear a clicking
sound. This indicates the safety belt is now in the automatic locking
mode.
How to disengage the automatic locking mode
Disconnect the combination lap/shoulder belt and allow it to retract
completely to disengage the automatic locking mode and activate the
vehicle sensitive (emergency) locking mode.
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63

Front safety belt height adjustment
Your vehicle has safety belt height
adjustments for the driver and front
passenger. Adjust the height of the
shoulder belt so the belt rests
across the middle of your shoulder.
To lower the shoulder belt height,
push the button and slide the height
control down. To raise the height of
the shoulder belt, slide the height
adjuster up. Pull down on the height
adjustment assembly to make sure it
is locked in place.
Position the shoulder belt
height adjuster so that the
belt rests across the middle of
your shoulder. Failure to adjust
the safety belt properly could
reduce the effectiveness of the
safety belt and increase the risk of
injury in a collision.
Lap belts
Adjusting the lap belt
The lap belt does not adjust automatically. Adjust to fit snugly and as low
as possible around your hips. Do not wear the lap belt around your waist.
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64

Insert the tongue into the correct
buckle. To lengthen the belt, turn
the tongue at a right angle to the
belt and pull across your lap until it
reaches the buckle. To tighten the
belt, pull the loose end of the belt
through the tongue until it fits
snugly across the hips.
Shorten and fasten the belt when
not in use.
Safety belt extension assembly
If the safety belt assembly is too short, even when fully extended, 20 cm
(8 inches) can be added to the safety belt assembly by adding a safety
belt extension assembly (part number 611C22). Safety belt extension
assemblies can be obtained from your dealer at no cost.
Use only extensions manufactured by the same supplier as the safety
belt. Manufacturer identification is located at the end of the webbing on
the label. Also, use the safety belt extension only if the safety belt is too
short for you when fully extended. Do not use extensions to change the
fit of the shoulder belt across the torso.
Safety belt warning light and indicator chime
The seat belt warning light illuminates in the instrument cluster and a
chime sounds to remind the occupants to fasten their safety belts.
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65

Conditions of operation
If... Then...
The driver's safety belt is not
buckled before the ignition
switch is turned to the ON
position...The safety belt warning light
illuminates for one to two minutes and
the warning chime sounds for four to
eight seconds.
The driver's safety belt is
buckled while the indicator
light is illuminated and the
warning chime is sounding...The safety belt warning light and
warning chime turn off.
The driver's safety belt is
buckled before the ignition
switch is turned to the ON
position...The safety belt warning light and
indicator chime remain off.
Safety belt maintenance
Check the safety belt systems periodically to make sure they work
properly and are not damaged. Check the safety belts to make sure there
are no nicks, wears or cuts. All safety belt assemblies, including
retractors, buckles, front seat belt buckle assemblies (slide bar)(if
equipped), shoulder belt height adjusters (if equipped), child safety seat
tether bracket assemblies (if equipped), and attaching hardware, should
be inspected after a collision. Ford recommends that all safety belt
assemblies used in vehicles involved in a collision be replaced. However,
if the collision was minor and a qualified technician finds that the belts
do not show damage and continue to operate properly, they do not need
to be replaced. Safety belt assemblies not in use during a collision should
also be inspected and replaced if either damage or improper operation is
noted.
Failure to replace the safety belt assembly under the above
conditions could result in severe personal injuries in the event of
a collision.
Refer toCleaning and maintaining the safety beltsin the
Maintenance and caresection.
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66

AIR BAG SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Important supplemental restraint system (SRS) precautions
The supplemental restraint system
is designed to work with the safety
belt to help protect the driver and
right front passenger from certain
upper body injuries.
Air bags DO NOT inflate slowly or
gently and the risk of injury from a
deploying air bag is greatest close to
the trim covering the air bag
module.
All occupants of the vehicle including the driver should always
properly wear their safety belts even when air bag SRS is
provided.
Always transport children 12 years old and under in the back
seat and always use appropriate child restraints.
NHTSA recommends a minimum distance of at least 25.4 cm
(ten [10] inches) between an occupant's chest and the air bag
module.
HI
LO
F
S
OFF
E
CHECK
ENGINEAIR
SUSPOD
OFF
BRAKE
TEMP OIL VOLTS FUEL
MPH km/h10 203040506070
80
90
10 0
11 0
12 020 406080100
120
140
160
180
200H H
L C F H
L< FUEL FILL DOOR
NORM A/CVENT FLOOR FLR • DEF DEFHI
LOMAX A/COUTSIDE TEMP AUTOMATICOFFFAUTO
REW
SIDE 1-2FFSCANEJBASS TREBBAL FADEVOL - PUSH ONSEEK
TUNE12 3456fwDOLBY B NRFM1STCDCLK AM
FM
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PUSH INTERIOR
HM
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OFF ONRSM
SET
ACC
COAST
10:35
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67

Steps you can take to properly position yourself away from the airbag:
²Move your seat to the rear as far as you can while still reaching the
pedals comfortably.
²Recline the seat one or two notches from the upright position.
The right front passenger air bag is not designed to restrain
occupants in the center front seating position.
Do not put anything on or over the air bag module. Placing
objects on or over the air bag inflation area may cause those
objects to be propelled by the air bag into your face and torso causing
serious injury.
Do not attempt to service, repair, or modify the Air Bag
Supplemental Restraint System or its fuses. See your Ford or
Lincoln-Mercury dealer.
Children and air bags
For additional important safety
information, read all information on
safety restraints in this guide.
Children must always be properly
restrained. Accident statistics
suggest that children are safer when
properly restrained in the rear
seating positions than in the front
seating position. Failure to follow
these instructions may increase the
risk of injury in a collision.
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68

Air bags can kill or injure a child in a child seat.NEVERplace a
rear-facing child seat in front of an active air bag. If you must
use a forward-facing child seat in the front seat, move the seat all the
way back.
How does the air bag supplemental restraint system work?
The air bag SRS is designed to
activate when the vehicle sustains
sufficient longitudinal deceleration
sufficient to cause the sensors to
close an electrical circuit that
initiates air bag inflation.
The fact that the air bags did not
inflate in a collision does not mean
that something is wrong with the
system. Rather, it means the forces
were not of the type sufficient to
cause activation. Air bags are designed to inflate in frontal and
near-frontal collisions, not rollover, side-impact, or rear-impacts.
The air bags inflate and deflate
rapidly upon activation. After air bag
deployment, it is normal to notice a
smoke-like, powdery residue or
smell the burnt propellant. This may
consist of cornstarch, talcum
powder (to lubricate the bag) or
sodium compounds (e.g., baking
soda) that result from the
combustion process that inflates the
air bag. Small amounts of sodium
hydroxide may be present which
may irritate the skin and eyes, but
none of the residue is toxic.
While the system is designed to help
reduce serious injuries, it may also
cause minor burns, abrasions, swelling or temporary hearing loss.
Because air bags must inflate rapidly and with considerable force, there
is the risk of death or serious injuries such as fractures, facial and eye
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69

injuries or internal injuries, particularly to occupants who are not
properly restrained or are otherwise out of position at the time of air bag
deployment. Thus, it is extremely important that occupants be properly
restrained as far away from the air bag module as possible while
maintaining vehicle control.
Several air bag system components get hot after inflation. Do not
touch them after inflation.
If the air bag is inflated,the air bag will not function again
and must be replaced immediately. If the air bag is not
replaced, the unrepaired area will increase the risk of injury in a
collision.
The SRS consists of:
²driver and passenger air bag modules (which include the inflators and
air bags),
²one or more impact and safing sensors,
²a readiness light and tone
²and the electrical wiring which connects the components.
The diagnostic module monitors its own internal circuits and the
supplemental air bag electrical system warning (including the impact
sensors), the system wiring, the air bag system readiness light, the air
bag back up power and the air bag ignitors.
Determining if the system is operational
The SRS uses a readiness light in the instrument cluster or a tone to
indicate the condition of the system. Refer to theAir bag readiness
section in theInstrumentationchapter. Routine maintenance of the air
bag is not required.
A difficulty with the system is indicated by one or more of the following:
²The readiness light will either
flash or stay lit.
²The readiness light will not
illuminate immediately after
ignition is turned on.
AIR
BAG
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