2002 Lexus GS 430 Owners Manual - Page 201

STARTING AND DRIVING (c) Using engine braking 3 Shift into the "2" position. The transmission will downshift to second gear when the vehicle speed is or becomes lower than the speed listed below and more powerful engine braking than that of "3" position will be enabled. Shift into the "L" position. The transmission will downshift to first gear when the vehicle speed is or becomes lower than the speed listed below and maximum engine braking will be enabled. GS430 km/h (mph) "3" "2" "L" 153 (95) 100 (62) 39 (24) GS300 km/h (mph) 128 (80) 85 (53) 16 (10) 4 31G032c To use the braking power of the engine, downshift the transmission in the way described below: 1 Shift into the "4" position. The transmission will downshift to fourth gear and engine braking will be enabled. When the cruise control is being used, even if you downshift from "D" to "4", engine braking will not be enabled because the cruise control is not cancelled. If you need to decrease the vehicle speed, see page 191. 2 Shift into the "3" position. The transmission will downshift to third gear when the vehicle speed is or becomes lower than the speed listed below and stronger engine braking will be enabled. CAUTION Be careful when downshifting on a slippery surface. The abrupt change in engine speed could cause the vehicle to spin or skid. 184