Jaguar XK. Manual — part 14

59

Seat belts

R

When access to the rear of the vehicle is
required, remove the seat belt from the
guide.

When returning the front seat to the
previous upright position ensure that the
seat belt is returned to the seat belt
guide.

Inertia reel mechanism test

• With the seat belt fastened, give the

webbing near the buckle a quick
upward pull. The buckle must remain
securely locked.

• With the seat belt unfastened, unreel

the webbing to the limit of its travel.
Check that the unreeling is free from
snatches and snags and then allow
the belt to FULLY retract.

• Partially unreel the webbing, then

hold the tongue plate and give it a
quick forward pull. The mechanism
must lock automatically and prevent
any further unreeling.

If a seat belt should fail any of these tests,
you should contact your Jaguar
Dealer/Authorised Repairer immediately.

Front passenger seat belt - Belt
Tensioner Sensor

(USA and canada only)

The front passenger seat belt is fitted with
a belt tensioner sensor which is part of
the occupant classification sensor
system. See OCCUPANT SENSING
(page 63).

AUTOMATIC LOCKING
RETRACTORS

Front and rear passenger seat belts have
an automatic locking device for use with
child seats.

When engaged, this device allows the
seat belt to be retracted (tightened) but
not pulled out. When used to secure a
child seat, therefore, the seat belt will
automatically lock at any piont to which it
has retracted.

1. Pull the seat belt all the way out to

engage the locking device.

2. Insert the metal tougue plate into the

buckle. A positive click indicates that
it is safely locked.

3. To fix the child seat firmly, retract the

belt back to the reel, a ratchet
operation may be felt as the seat belt
retracts. Continue to feed the seat
belt back onto the reel until it fits
snugly around the child seat.

4. Push down on the child seat to

ensure any slack is taken in by the
mechanism.

The above is a guide only. Depending on
the features of a particular child seat, e.g.
forward or rearward-facing, engage the
locking device before or after attaching
the belt, as convenient.

Unbuckling the seat belt and releasing
the child seat will allow the seat belt to
resume its normal operation.

SEAT BELT REMINDER

The belt reminder feature provides
additional reminders to the driver that an
occupant’s seat belt is unbuckled. A
chime will sound intermittently.

Note: Not all countries have the warning
chime.

Seat belts

60

L

Seat belt warning indicator

A warning indicator on the
instrument panel is illuminated
when:

• The driver’s seat belt is not fastened.
• A passenger is sitting in the front seat

and their seat belt is not fastened.

In some countries a warning signal
sounds for six seconds.

FASTENING THE SEAT BELTS

1. Draw the belt out smoothly, making

sure that the seat and your position
on the seat are correct. The belt
should lay flat across the pelvis,
chest, and mid-point of the collar
bone between the neck and shoulder.

2. With the seat belt correctly

positioned, place the metal tongue
into the buckle nearest to you. Press
it in until a click is heard.

Releasing the seat belts

Note: When releasing the seat belt it is
advisable to hold the belt before pressing
the release button. This will prevent the
belt from retracting too quickly.

To release the seat belt, press the red
button.

USING SEAT BELTS DURING
PREGNANCY

Position the lap strap comfortably across
the hips beneath the abdomen. Place the
diagonal part of the seat belt between the
breasts and to the side of the abdomen.
Make sure that the seat belt is not slack
or twisted.

E82905

WARNINGS

Position the seat belt correctly for
the safety of the mother and
unborn child. Never wear just the

lap strap, and never sit on the lap strap
whilst using just the shoulder strap. Both
of these actions are extremely
dangerous, and may increase your risk of
serious injury in the event of an accident
or during emergency braking.

Never place anything between
you and the seat belt in an
attempt to cushion the impact in

the event of an accident. It can be
dangerous, and will reduce the
effectiveness of the seat belt in
preventing injury.

E82643

61

Supplementary restraints system

R

Supplementary restraints system

PRINCIPLE OF OPERATION

Introduction

In the event of a collision the air bag
control unit monitors the rate of
deceleration caused by the collision. This
information is then used to determine
whether air bags should be deployed.

Air bag deployment is dependent on the
rate at which the passenger
compartment changes speed following
the collision. The circumstances affecting
different collisions (vehicle speed, angle
of impact, type and size of object hit, etc.)
vary considerably, and will affect the rate
of deceleration accordingly.

Note: The location points of air bags
fitted to the vehicle are marked by the
word AIR BAG embossed into the trim.

Advanced Restraint Technology
System (ARTS)

The air bags and seat belt pretensioners
are electrically controlled by an
Advanced Restraints Technology System
(ARTS).

Various sensors determine the direction
and severity of an impact. The system
analyses this information then deploys
only the appropriate airbags e.g. the side
air bags where the impact is on that side
only.

WARNINGS

High speed impacts may cause
serious injury or death irrespective
of safety features fitted to the

vehicle. Always drive with caution and
consideration for the vehicle's
characteristics, road and weather
conditions and do not exceed any speed
limits in force.

Air bags inflate at high speeds and
can cause injuries. To minimise
the risk of injury, ensure that all

vehicle occupants wear correctly
positioned seat belts, sit correctly in the
seats and position the seats as far back
as is practical.

Air bag inflation takes place
instantaneously, and cannot
protect against the effects of

secondary impacts. Under these
circumstances the only protection will be
provided by a correctly worn seat belt.

WARNINGS

Seat belts should be worn at all
times, by the driver and
passengers in all seating

positions. The Advanced Restraint
Technology System (ARTS) cannot
provide protection in some types of
impact. Under these circumstances the
only protection will be provided by a
correctly worn seat belt.

Phone systems should only be
installed by qualified persons
familiar with the operation of, and

requirements for, vehicles fitted with
ARTS. If you are in doubt, seek advice
from your Jaguar Dealer.

Supplementary restraints system

62

L

The ARTS components include :-

1. Dual front crash sensors.

2. Passenger dual stage air bag.

3. Passenger buckle pretensioner.

4. Passenger seat occupancy sensor.

5. Passenger belt tension sensor.

6. Passenger side head and thorax air

bag.

7. Passenger side crash sensor.

8. Right-hand rollover protection bar

(convertible only).

9. Left-hand rollover protection bar

(convertible only).

10. Restraint control module.

11. Driver side crash sensor.

12. Driver side head and thorax air bag.

13. Driver buckle pretensioner.

14. Driver dual stage air bag (Steering

wheel).

Note: The ARTS is not designed to
operate as a result of:
• Rear impacts.
• Minor front impacts.
• Minor side impacts.
• Heavy braking.
• Driving at very low speeds and over

bumps and pot holes.

Therefore, it follows that considerable
superficial damage to the vehicle can
occur without causing the air bags to
deploy.

1

3

6

7

8

14

9

13
12

11

5

4

2

10

E90776