2005 Lexus LS 430 Owners Manual - Page 348

STARTING AND DRIVING 5. Release the parking brake and brake pedal. Depress the accelerator pedal slowly for smooth starting. In normal cruising, the vehicle will start in first gear and automatically shift up to the most suitable gear. On inclines, declines or winding roads, etc., the vehicle shifts up and down automatically according to the running conditions to obtain the suitable driving power and engine braking. If you need to accelerate rapidly while driving, depress the accelerator pedal to the full throttle position. This provides more acceleration by automatically downshifting the transmission to the next lower gear or beyond, depending on the vehicle speed. If engine braking is needed, such as in descending a long hill, see "(c) Using engine braking". D AI (Artificial Intelligence) shifting control AI shifting control selects the most suitable shift range automatically according to the driver's operation and driving condition. AI shifting control operates automatically with the selector lever in the "D" position. When the lever is moved to the "S" position, this function will be canceled. Shifting control on the slope: On inclines, you can drive smoothly with reduced shifting quantity. On declines, the vehicle will shift down automatically to obtain optimum engine braking and reduce the driver's foot braking load. Automatic shifting point change control: The most suitable shift range is selected depending on the driver's accelerator pedal operation and vehicle condition. 309 31l323 " 1 Brake pedal 2 "D" (Drive) position 4. With your foot holding down the brake pedal, shift the selector lever to "D". Always use the "D" position to improve fuel economy and quiet driving. Only in this position, shifting into the overdrive gear is possible. However, while the engine coolant temperature is low, the transmission will not shift into the overdrive gear even in the "D" position. (See "(c) Using engine braking" and "(f) Good driving practice" for exceptions.) CAUTION Never put your foot on the accelerator pedal while shifting.