Caution: Do not place hard or sharp objects between your body and the airbags, do not carry hard or sharp objects on your knees, and do not smoke a pipe while driving as this could result in serious injury in the event of an accident. In order to prevent the risk of unauthorized deployment of airbags, try not to press your hands to the locations of the airbags and their modules. Locations of airbags and inflatable curtains are marked with inscriptions "AIRBAG".
Among the devices and components of the additional security system (SRS) The maximum package includes:
- driver's frontal airbag (in steering wheel cover);
- front passenger airbag (at the top right of the instrument panel);
- two side airbags in the outer parts of the front seat backs: to protect the head and torso of the driver and front passenger;
- two side airbags in the trim between the outer edges of the rear seatback and the rear doors: to protect the head and torso of the outer rear passengers;
- two side curtains to protect heads;
- driver's knee airbag (in the instrument panel, under the steering column).
- SRS control unit with integrated longitudinal acceleration sensor for front airbags;
- side impact sensors for side airbags (in the front doors and behind the lower trim of the pillars);
- automatic emergency tensioners of the front seat belts;
- automatic emergency tensioners for the rear side seat belts (with rear side airbags);
- an electronic self-diagnostic system that, when the ignition is on, provides continuous testing of overload sensors, the control unit, airbag gas generators, squibs for emergency seat belt tensioners and the connecting wiring of the corresponding circuits;
- front passenger airbag switch;
- control lamp SRS in a combination of devices and K/L of deactivation of airbags of the forward passenger (with an airbag switch).
Note: A description of the activation and deactivation of the front passenger airbags, as well as a description of the corresponding C/L, is given in Section 8.
The principle of operation of airbags
Note: When the ignition is off, in minor frontal and side collisions, as well as in the event of a vehicle rollover and rear impact, the airbags will not deploy.
Sensors of directional overloads respond to exceeding a certain limit value of deceleration that occurs during a strong frontal (with a direction deviation of no more than 30°relative to the longitudinal axis of the vehicle) or side impact. At the signal of the sensors, the control unit turns on the gas generators of the airbags, causing them to instantly fill with gas.
During a collision, the seat belt keeps the occupant's lower torso from moving. Frontal airbags help prevent injury to the driver and front passenger from head and chest collisions with the steering wheel/dashboard. The side airbags protect the chest and shoulder area in the event of an impact with the pillars/door windows, and the side curtains are designed to protect the head in the event of an impact with the pillars/door windows.
Both front airbags are triggered simultaneously, but it is possible that only one of the pair of airbags will be triggered - this becomes possible when the magnitude of the directional overloads that occurred during a collision was on the verge of the sensitivity range of the sensors. In this case, the seat belts provide sufficient protection for the driver and front passenger, while the effect of the airbag deployment will be minimal. The side airbags and curtain airbags will only deploy on the side of the impact.
Immediately after the airbags are triggered and perform their functions, gas is released from them under body pressure, which allows the driver to maintain visibility and freely manipulate all the controls of the car.
The total duration of the process from the moment the signal is given by the overload sensors to the release of gas from the pillows takes a few milliseconds. The triggering of the squibs is so fast that the human ear is simply not able to perceive the pop of the gas generators when the pillows are filled.
After the airbags have been deployed, the interior of the car may look slightly smoky due to the suspension of fine powder, which is usually poured into folded airbag shells. People with a respiratory disease may experience some discomfort from the airborne gaseous products emitted by airbag generators.
Airbags are designed to deploy once and must be replaced after that. Replacement of airbags, repair of the steering wheel, steering column and seats should be carried out by experienced qualified mechanics.
SRS warning lamp
The SRS warning lamp is mounted in the instrument cluster (see Section 13). When the ignition is turned on, the K / L lights up for about 4 seconds and then goes out. confirming the correct functioning of all components of the SRS system.
If the airbags are disabled at the service station, after the ignition is switched on, the SRS K/L in the instrument cluster lights up for about 4 seconds, and then flashes with a period of 2 seconds for about 12 seconds.
If the K / L does not turn on, does not go out, flashes or randomly works at any other moment, the car owner should contact the service station specialists as soon as possible, because. the above symptoms may cause the SRS system to fail during an accident.
Seat belts with automatic emergency retractors
Emergency automatic tensioners are fitted to the front seat belts and, on some models, also to the outer rear seats. The tensioners are activated in case of severe frontal overloads that occur during a frontal collision and provide instant removal of the slack in the belts, as a result of which their belts tightly cover the body of the occupant, greatly increasing the degree of protection. The overload threshold for deploying the emergency tensioners is lower than the overload threshold for deploying the airbags.
The actuation of the squibs is accompanied by a loud pop and a small emission of smoke.
Note: The smoke released when the tensioners are actuated is safe for human health, however, if inhaled directly, it can cause irritation of the mucous membranes.
The procedure for using such seat belts is similar to the procedure for using conventional belts equipped with inertial return devices. The tensioner mechanism does not require any additional skills and knowledge from the user.
As in the case of airbags, emergency tensioner modules are designed for a single operation and after that they must be replaced complete with belts - contact a service station.