1997 Lexus SC 400 Owners Manual - Page 79

COMFORT ADJUSTMENT This indicator comes on when the ignition key is turned to the "ACC" or "ON" position. It goes off after about 6 seconds. This means the SRS airbags are operating properly. The SRS airbag warning light system monitors the front airbag sensors, center airbag sensor assembly, inflators, warning light, interconnecting wiring and power sources. The SRS airbag system is designed to activate in response to a severe frontal impact within the shaded area between the arrows in the illustration. The SRS airbags will deploy if the severity of the impact is above the designed threshold level, comparable to an approximate 20 km/h (14 mph) collision when impacting straight into a fixed barrier that does not move or deform. If the severity of the impact is below the above threshold level, the SRS airbags may not deploy. However, this threshold velocity will be considerably higher if the vehicle strikes an object, such as a parked vehicle or sign pole, which can move or deform on impact, or if it is involved in an underride collision (e.g. a collision in which the nose of the vehicle "underrides," or goes under, the bed of a truck). It is possible with collision severity at the marginal level of airbag sensor detection and activation that only one of your vehicle's two airbags will deploy. 71