Chevrolet Tahoe Bedienungshandbuch PDF herunterladen (Seite 32)

2015 TAHOE 4x4 SPECIAL SERVICE

AIR BAG FAQ

Can specialty vehicle equipment (e.g. radar devices, video

cameras, computers, meters, radio trees, shotguns, etc.) still

be mounted in cars with passenger side air bags?

Yes, but care must be taken to mount the equipment outside of the deployment

zone. Air bags inflate with great force and will interact with any object in the

deployment zone. Therefore, to reduce the risk of injury to vehicle occupants,

GM recommends that the air deployment zone be kept free of any equipment. If

a piece of equipment were to become dislodged it could strike an occupant in

the vehicle and result in injury. The likelihood of an object becoming dislodged

is influenced by many factors, including the proximity of the object to the

inflatable restraint, the size and shape of the object, and the means by which

the object is secured to the vehicle. In addition to these factors, the trajectory

and velocity of a dislodged object can be influenced by the type and severity of

vehicle crash.

Objects that are in the deployment zone, but do not become dislodged by an

inflating air bag can still affect the performance of the air bag. For example,

such objects could tear the fabric or affect the shape of the air bag, thus reducing

the ability of the bag to provide restraint.

Is it possible to shield equipment that is installed in the

passenger side frontal air bag deployment zone in a manner

that will allow full and safe air bag deployment?

Due to the complexity of influencing variables, GM is unable to evaluate the

potential for shielding expected equipment configurations in all accident

scenarios in order to assure that the air bag performance would be unaffected.

While shielding may protect certain equipment from being damaged or

dislodged, it may also negatively affect the inflation characteristics of the air

bag. The air bag’s shape, inflation angle, fold pattern, and inflation rate and

pressure are developed to maximize the protection capability of the inflatable

restraint system. Therefore, GM cannot recommend the placement of any

equipment in the deployment zone, even if it is shielded to protect it from

damage.

Front air bag systems and instrument panel mounted

equipment.

Passenger air bags in GM vehicles deploy in different ways depending upon the

type of vehicle and the particular instrument panel design.

In some vehicles, the passenger air bag deploys through a discrete door located

on the top surface of the instrument panel (top-mount air bag systems). In

other vehicles, such as the Chevrolet Tahoe, the passenger air bag deploys

through a discrete door mounted on the vertical rearward surface of the

instrument panel, above the glove box door (mid-mount air bag system). With

these types of top-mount and mid-mount passenger air bag systems, the top

pad of the instrument panel remains in place during deployment.

Some GM passenger air bag systems, like the system in the Chevrolet Impala,

deploy from beneath the instrument panel top pad. These are considered 3/4-

mount air bag systems with a “deployable top pad.” The entire instrument

panel top pad is the “deployment door” from under which the inflating air bag

emerges. When an air bag deployment is commanded, the forces from the

inflating passenger air bag push up on the instrument panel top pad, releasing

special fasteners across the rearward edge of the top pad. This allows the top

pad to rotate upward so that the passenger air bag may emerge. The top pad

rotates upward to open widest at the right hand side, and is usually forced

upward into contact with the windshield on the right hand side of the vehicle

during a deployment.

Instrument panel top mounted special equipment, such as a radar antenna and

control unit or video camera must be positioned to the left of the vehicle center

line. This equipment must be mounted as low as possible and securely fastened

to the top pad to avoid being dislodged in the event of a crash and possible air

bag deployment. In the process of securely fastening special equipment to the

top, DO NOT fasten down the top pad itself to any other vehicle component such

as the cluster trim plate. As described above, the top pad rotates upward during

a deployment. In order to enable the proper deployment of the passenger air

bag, specialty equipment installation MUST NOT PREVENT the top pad from

rotating upward during deployment. Location and attachment of special

equipment should minimize added resistance or interference to upward rotation

of the top pad during deployment.

Side-Impact Air Bags for crashes to the vehicle sides.

The air bag system in your police vehicle includes roof rail mounted Head Curtain

side air bags. The vehicle is also equipped with seat back mounted upper body

air bags located on the outboard side of the driver and front passenger seat

backs. Together the Head Curtain and seat-mounted side air bags are intended

to protect the head and upper body in the event of a side crash. Some vehicles

may also be equipped with an optional air bag, mounted on the inboard side of

the driver seat back.

Can Specialty Vehicle Security Barriers be mounted within the

side air bag deployment zones?

No. The side air bags inflate extremely fast because of the nature of side crashes

to the vehicle. Mounting a security barrier behind the front seats with the ends

placed within the side air bag deployment zones will result in unintended

interaction between the barrier and the inflating side air bags. To reduce the risk

of injury to the vehicle occupants, GM recommends that the side air bag zones

be kept free of any customer installed equipment.

Customer furnished equipment installed to the vehicle roof.

Your police vehicle is designed with an interior roof cover system which includes

internal components for the interior lamps and wiring. The roof system may also

include side air bag components. Inflation devices may be mounted on the

vehicle roof side behind the rear doors as well as air bag tethers retained to the

windshield pillars. Care must be taken to avoid damage to these components

or interference with their operation when installing roof mounted equipment

such as emergency lamps and communication antennas.

Recommended GM service procedures must be followed to

remove and re-install the instrument panel top pad to ensure

that the top pad will release properly in the event of a

passenger air bag deployment

On the right half of the top pad closest to the passenger air bag module,

GM recommends that no equipment be mounted. When mounting equipment

on the driver side of the top pad, GM recommends that the total mass of the top

pad mounted special equipment not exceed 8 pounds (3.6 kilograms), since

some top pads tend to rotate about the left end.

Fasteners used to secure special equipment to the instrument panel top pad, the

windshield glass, or to the windshield upper frame (header), should be selected

to ensure that these devices will remain attached during a vehicle crash and

possible air bag deployment.

Head curtain side air bags are designed to help reduce the risk of head and neck injuries to front and rear seat occupants on the near side of certain side-impact collisions. Always use safety belts

and the correct child restraints for your child’s age and size, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat. See your vehicle Owner’s Manual and

child safety seat instructions for more information.

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