2010 Lexus RX 450h User Guide 2 - Page 220

2-4. Using other driving systems n Cruise control can be set when l The shift lever is in D or "4", "5" or "6" range of S has been selected. l Vehicle speed is above 25 mph (40 km/h). n Accelerating The vehicle can be accelerated normally. After acceleration, the set speed resumes. n Automatic cruise control cancelation Cruise control will stop maintaining the vehicle speed in any of the following situations: l Actual vehicle speed falls more than 10 mph (16 km/h) below the preset vehicle speed. At this time, the memorized set speed is not retained. l Actual vehicle speed is below 25 mph (40km/h). l VSC is activated. n If the cruise control indicator light flashes Press the "ON-OFF" button once to deactivate the system, and then press the button again to reactivate the system. If the cruise control speed cannot be set or if the cruise control cancels immediately after being activated, there may be a malfunction in the cruise control system. Have the vehicle inspected by your Lexus dealer. 222