SUPPLEMENTAL RESTRAINT SYSTEM (SRS) <EXCEPT PHEV>



The Supplemental Restraint System (SRS) and seat belt with pre-tensioner is designed to supplement the driver’s and front passenger’s seat belts to help reduce the risk or severity of injury to the driver and front passenger by activating and deploying both front air bags in certain frontal collisions. The side-air bag and the curtain air bag are activated when an impact exceeds the threshold upon a side collision, and inflates to protect the heads of the occupants in the front and rear seats.
The SRS consists of air bag modules, SRS air bag control unit (SRS-ECU), two front impact sensors, two side impact sensors, SRS warning lamp, clock spring, passenger’s air bag cut off switch, passenger’s air bag OFF indicator lamp and seat belt pre-tensioner. Front air bags are located in the centre of the steering wheel and above the glove box. Each air bag is made up of a folded air bag and an inflator unit. Side-airbags are located inside the front seatback assemblies. The curtain air bag module consists of an air bag, an inflator, and the fixing gear relating to those parts, and is installed in the roof side sections (from the driver’s and the passenger’s front pillars to the rear pillars).The SRS-ECU under the front floor console monitors the system and has a front air bag analogue G-sensor, front air bag analogue G-sensor and a side (curtain) air bag analogue G-sensor. The front impact sensor is installed on the front end upper bar in the engine room and contains an analogue G-sensor. The side impact sensor is installed in the lower parts of the centre pillars, and contains an analogue G-sensor. The warning lamp on the instrument panel indicates the operational status of the SRS. The clock spring is installed in the steering column. The passenger’s air bag cut off switch is outside the instrument panel side. The passenger’s air bag OFF indicator lamp is installed in centre panel assembly. The seat belt pre-tensioner is built into the driver’s and passenger’s front seat belt retractor.
Only authorized service personnel should do work on or around the SRS components. Those service personnel should read this manual carefully before starting any such work.