Lexus 2003 LS Owner's Manual page 432

r Operation Procedure
Y Acceleration/Deceleration
To accelerate: Depress the accelerator pedal. (When you release the accelerator pedal, follow–up cruising or fixed speed cruising
resumes.) If there was no vehicle ahead, the vehicle will accelerate gradually to the preset speed. At this time, depressing the acceler-
ator pedal or pressing the control lever upward and releasing it will accelerate quickly.
To decelerate: Depress the brake pedal. (Even when you release the brake pedal, dynamic laser cruise control does not return to
follow–up cruising or fixed speed cruising. Press the control lever upward to resume follow–up–cruising or fixed speed cruising.)
Y Changing the preset speed
Using the control lever:

Press the control lever upward or downward.
R Press the control lever upward in the "RES/ACC" direction to increase the preset speed.
R Press the control lever downward in the "SET/COAST" direction to decrease the preset speed.
B Release the control lever when the multi–information display shows the desired preset speed.
Using the accelerator and brake pedals:

Depress the accelerator or brake pedal to attain the desired speed.
B Press the control lever downward in the "SET/COAST" direction and release the lever.
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2003 LS430 Laser Cruise (OM50602U) from Aug. '02 Prod.
To increase
the preset speed
To decrease
the preset speed