Lexus RX300 Manual page 187

STARTING AND DRIVING
31R007b
" 1 On
2 Off
2. Set the overdrive switch to the ON position.
Always set the overdrive switch to the ON position to improve fuel
economy and quiet driving. (See "(b) Using engine braking" and
"(f) Good driving practice" for exceptions.)
172
31R040b
" 1 Power position
2 Normal position
3 Snow position
3. Set the driving pattern selector switch to the "Normal"
position.
Your transmission has a driving pattern selector switch which allows
you to select "Power", "Normal" or "Snow" mode to suit your
driving condition. For ordinary driving, Lexus recommends that
you use the "Normal" position to improve fuel economy.
4. For more powerful acceleration and sporty driving, use the
"Power" position.
In the POWER position, the "ECT PWR" light in the instrument
cluster is on and the transmission is shifted up at higher vehicle
speeds and shifted down more responsively than in the NORMAL
position.
5. For starting your vehicle in sand, mud, ice or snow, use the
"Snow" position. For details, see (j) Driving in "Snow" mode on
page 177.