Jaguar S-Type. Service manual - part 14


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Jaguar S-Type. Service manual - part 14




Occupant Protection


Air bag deployment

The air bag supplementary restraint 
system incorporates front, side thorax 
and side head air bags for the driver and 
front passenger and side head bags for 
rear seat passengers. These are indicated 
by the word AIR BAG on the trim. They are 
used in conjunction with the seat belts to 
help protect occupants from upper body 
(thorax) and head injuries.

1. The driver front air bag is located in 

the center of the steering wheel.

2. The front passenger air bag is located 

in the facia panel immediately in front 
of the passenger seat.

3. Curtain air bags are fitted on each 

side, above the front and rear doors.

4. Thorax side air bags are fitted within 

the outboard bolsters of both front 
seats, and are identified by labels.

The air bags and seat belt pre-tensioners 
are electrically controlled by an Advanced 
Restraints Technology System.

Occupant Protection



Both front air bags use a dual inflation 
technology which means, if activated, the 
bag(s) will deploy at either a normal or 
reduced level of inflation, depending on 
crash severity. Lower inflation level is also 
selected if the restraint system senses 
that the driver is too close to the steering 

Various sensors determine the direction 
and severity of an impact and the 
presence and position of front seat 
occupants, see page 65. The system 
analyses this information then deploys 
only the appropriate air bag(s), e.g. the 
side air bags where the impact is on that 
side only.

Air bags will not deploy at very low 
speeds or in rear impacts.

Front protection

With a front impact of sufficient force, 
the restraints system will trigger the front 
air bag(s) and seat belt pre-tensioners, 
which immediately tighten the seat belts.

For front occupants, the seat belt then 
slackens with increasing chest load, 
allowing the head and chest to gradually 
come into contact with the inflated air 

The air bag absorbs the remaining energy 
of the impact and then deflates rapidly via 
vent holes.

Front air bags are designed to inflate in 
frontal and near-frontal collisions, not low 
speed impacts, rollover, side-impact or 

Where the air bags are not deployed, 
protection is provided by the seat belts.


Occupant Protection


Side protection



To ensure that the side air bags are 
fully effective:
• DO NOT sit too close to, or lean 

against the door trim. The side 
airbag could injure you as it deploys 
from the side of the seat.

• DO NOT lean out of the window 



accessories (e.g. seat covers).

The side protection system utilizes four air 
bags: two mounted in the front seats, and 
two curtain air bags located just above 
the front and rear door openings under 
the headlining trim.

When the seat mounted thorax air bag 
inflates upon a vehicle side impact, it 
breaks through the seat bolster stitching, 
protecting the side of the rib cage of the 
driver or front seat passenger.

When the curtain air bag inflates upon a 
vehicle side impact, it breaks through the 
headlining and deploys downwards, 
giving head protection to the front and 
rear seat occupants on the impact side.

The curtain air bag on the front passenger 
side is always deployed in a side-impact, 
even if the front passenger seat air bags 
are deactivated. This is to maintain 
protection for a rear occupant.

Seat mounted thorax and curtain air bags 
are designed to inflate in a side-impact 
collision, not rollover, rear-impact, frontal 
or near-frontal collisions, unless the 
collision causes sufficient lateral 

The air bags, in combination with the seat 
belts, can help reduce the risk of severe 
injuries in the event of a significant side 
impact collision.

Occupant Protection



Rear impact protection

Both front seats have active, energy 
absorbent back restrainrs which, with 
correctly positioned head restraints, 
reduce the risk of neck and spinal injuries 
(whiplash) in the event of a rear impact.
When activated, the seat back restraints 
automatically move back and recline, 
altering the occupants’ posture and 
reducing relative motion between the 
body and head.

The degree of back restraint movement in 
a rear collision depends on the angle, 
speed and nature of the colliding vehicle.

After activation, the whiplash protection 
mechanism will not work again and the 
seat must be serviced by a Jaguar Dealer 
to restore the protective function.

Note: The amount of back restraint 
movement depends on the severity of the 
impact and for a minor collision there may 
be no apparent change to the seat, even 
where the protective system has been 
activated. After any rear collision, 
therefore, the seat must always be 
inspected by a Jaguar Dealer.



• For optimum protection, the driver 

and passenger should sit in the 
center of the seat with the head as 
close as possible to the head 

• Do not wedge objects (e.g. 

luggage) between the front seat 
back restraint and the rear seat 

• After a rear collision, the front seats 

must be inspected by a Jaguar 
Dealer, even where there is no 
apparent damage or change to the 

• Do not attempt to service or tamper 

with the seat recliner mechanism.

• Adjust the head restraint so that it 

is just behind your head and never 
behind your neck.








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