Lexus ES300 Owner's Manual page 242

STARTING AND DRIVING
"The shift position is displayed on the instrument
cluster.
P: Parking, engine starting and key removal position
R: Reverse position
N: Neutral position
D: Normal driving position (shifting into overdrive possible)
4: Position for engine braking (shifting into overdrive not
possible)
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. For
the operation to decrease the vehicle speed, see page
236.
3, 2: Position for more powerful engine braking
L: Position for maximum engine braking
228
Correct use of the automatic transmission is explained in
the following parts.
(a) Normal driving
(b) Using engine braking
(c) Using the "3", "2" and "L" positions
(d) Backing up
(e) Parking
(f) Good driving practice
(g) If you cannot shift the selector lever