2007 Lexus GS 350 Owners Manual - Page 171

2-1. Driving procedures CAUTION n When taking a nap in the vehicle Always turn the engine off. Otherwise, you may accidentally move the shift lever or press the accelerator pedal, which could cause an accident or fire due to abnormal engine overheating. Additionally, if the vehicle is parked in a poorly ventilated area, exhaust fumes may enter the vehicle and cause gas poisoning. n When braking the vehicle l When the brakes are wet, drive more cautiously. 2 Braking distance increases when the brakes are wet, and may cause one side of the vehicle to brake differently than the other side. Also the parking brake may not securely hold the vehicle. l If the power brake assist function does not operate, do not follow other vehicles When driving closely and avoid downhill or sharp turns that require making. In this case, braking is still possible, but it will require more force on the pedal than usual. Braking distance may also increase. l Do not pump the brake pedal if the engine stalls. Each push on the pedal uses up your reserved brake fluid pressure. l The brake system consists of 3 individual hydraulic systems: if one of the systems fails, the other will still operate. In this case, the brake pedal should be depressed more firmly than usual and braking distance becomes longer. Do not drive your vehicle with only a single brake system. Have your brakes fixed immediately. n If the vehicle becomes stuck or bogged (4WD models) Do not spin the wheels recklessly when any of the tires is up in the air, or stuck in sand or mud, etc. This may damage the drive system components or propel the vehicle forward (or in another direction) and cause an accident. 95