Toyota Lexusc Owner's Handbook Manual page 474

(f) Good driving practice
D If the transmission repeatedly shifts up and down between
fourth and overdrive gears when climbing a gentle slope,
shift the selector lever into the "S" position. Be sure to shift
the selector lever to the "D" position after climbing the slope.
D When towing a trailer, in order to maintain efficient engine
braking and electrical charging performance, do not use
overdrive (fifth) gear.
CAUTION
Always keep your foot on the brake pedal while stopped
with the engine running. This prevents the vehicle from
creeping.
NOTICE
Always use the brake pedal or the parking brake to hold
the vehicle on an upgrade. Do not attempt to hold the
vehicle using the accelerator pedal, as this can cause
the transmission to overheat.
STARTING AND DRIVING
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