2000 Lexus RX 300 Owners Manual - Page 188

COMFORT ADJUSTMENT 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 work if the severity of the impact is above the designed threshold level, comparable to an approximate 25 km/h (15 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 work. 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, etc.). It is possible that in some collisions at the lower zone of airbag sensor detection and activation the SRS airbags and seat belt pretensioners will not operate all together. For the safety of all occupants, always wear your seat belts. 16R023a 171