2009 Lexus IS F Owners Manual - Page 156
2009 Lexus IS F Manual
Page 156 highlights
2-4. Using other driving systems Example of follow-up cruising (when following a vehicle driving slower than the set speed): When the speed is set to 62 mph (100 km/h) and the vehicle ahead is driving at 50 mph (80 km/h) The system continues follow-up cruising while adjusting for changes in the speed of the vehicle ahead in order to maintain the vehicle-to-vehicle distance set by the driver. Example of acceleration (when there are no longer vehicles driving slower than the set speed in the lane ahead): When the speed is set to 62 mph (100 km/h) and the vehicle ahead driving at 50 mph (80 km/h) is out of the lane When the vehicle ahead of you executes a lane change, the system slowly accelerates until the set vehicle speed is reached. The system then returns to fixed speed cruising. n Dynamic radar cruise control warning lights, messages and buzzers Warning lights, messages and buzzers are used to indicate a system malfunction or to alert you to the need for caution while driving. (→P. 365) n The dynamic radar cruise can be set when l The shift lever is in the D position. However, it cannot be set if any of the ranges 1 through 3 has been selected using the paddle shift switches. l Vehicle speed is between approximately 30 mph (45 km/h) and 85 mph (135 km/h). n Accelerating The vehicle can be accelerated normally. 158