2013 Hyundai Sonata Owner's Manual - Page 68

Safety features of your vehicle WARNING If the occupant classification system is not working properly, the SRS air bag warning light on the instrument panel will illuminate because the SRS air bag warning light is connected with the occupant classification system. If the SRS air bag warning light does not illuminate when the ignition switch is turned to the ON position, remains illuminated after approximately 6 seconds when the ignition switch is turned to the ON position, or if it illuminates while the vehicle is being driven, have an authorized HYUNDAI dealer inspect the advanced SRS air bag system as soon as possible. The driver's seat track position sensor, which is installed on the seat track, determines if the seat is fore or aft of a reference position. The seat belt buckle sensors determine if the driver and front passenger's seat belts are fastened. These sensors provide the ability to control the SRS deployment based on how close the driver's seat is to the steering wheel, whether or not the seat belts are fastened, and how severe the impact is. The advanced SRS offers the ability to control the air bag inflation within two levels. A first stage level is provided for moderate-severity impacts. A second stage level is provided for more severe impacts. According to the impact severity, seating position and seat belt usage, the SRSCM (SRS Control Module) controls the air bag inflation. Failure to properly wear seat belts can increase the risk or severity of injury in an accident. Additionally, your vehicle is equipped with an occupant classification system in the front passenger's seat. The occupant classification system detects the presence of a passenger in the front passenger's seat and will turn off the front passenger's air bag under certain conditions. For more detail, see "Occupant classification system" in this section. WARNING • Modification to the seat structure can adversely affect the seat track position sensor and cause the air bag to deploy at a different level than should be provided. • Do not place any objects underneath the front seats as they could damage the seat track position sensor or interfere with the occupant classification system. • Do not place any objects that may cause magnetic fields near the front seat. These may cause a malfunction of the seat track position sensor. 3 50