2007 Lexus LS 460 Owners Manual - Page 203

2-4. Using other driving systems n Reduced effectiveness of EPS The effectiveness of EPS is reduced to prevent the system from overheating when there is frequent steering input over an extended period of time. The steering wheel may feel heavy as a result. Should this occur, refrain from excessive steering input or stop the vehicle and turn the engine OFF. The system should return to normal within 10 minutes. CAUTION 2 n The ABS does not operate effectively when l The limits of tire gripping performance have been exceeded. l The vehicle hydroplanes while driving at high speed on a wet or slick road. n Stopping distance when the ABS is operating will exceed that of normal condi- When driving tions The ABS is not designed to shorten the vehicle's stopping distance. Always maintain a safe distance from the vehicle in front of you in the following situations. l When driving on dirt, gravel or snow-covered roads l When driving with tire chains l When driving over bumps in the road l When driving over roads with potholes or roads with uneven roads n TRAC may not operate effectively when Directional control and power may not be achievable while driving on slippery road surfaces, even if the TRAC system is operating. Do not drive the vehicle in conditions where stability and power may be lost. n If hill-start assist control does not operate effectively The hill-start assist control may not operate effectively on steep inclines and roads covered in ice. 177