2007 Lexus GS 450h User Guide - Page 183

2-4. Using other driving systems n VGRS is disabled in the following situations l During stopping or the steering wheel has been moved for a long time while driving at lower speeds. l After the hybrid system is restarted at less than -22°F (-30°C). 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 hybrid system OFF. The system should return to normal within 10 minutes. 2 When driving CAUTION Any of the following conditions may result in an accident which could cause death or serious injury: 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 the wet or slick road. n Stopping distance when the ABS is operating on the wet or slick roads 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 is operating. Do not drive the vehicle in conditions where stability and power may be lost. 165