2006 Lexus GS 300 Owners Manual - Page 383

STARTING AND DRIVING D "S" mode indicator light "S" mode allows you to use the shift range positions. The "S" mode indicator light comes on when the selector lever is shifted into the "S" position. When the "S" mode indicator light does not come on even with the selector lever moved to the "S" position, there may be a problem somewhere in the system. Have your vehicle checked/repaired by your Lexus dealer as soon as possible. In this case, you can drive in the same condition as in the "D" position. (c) Using engine braking G31027 " "S" mode position To use the braking power of the engine, downshift the range in the "S" mode position as follows: D Shift into the "5" (fifth range) position. The transmission will downshift to fifth gear and engine braking will be enabled. If you drive in the "D" position: Shift the selector lever to the "S" position and "5" (fifth range) will automatically be selected. If you drive in the "S" position: Shift the selector lever down to the "-" position by selecting the "5" (fifth range). 359