Acura 2004 NSX Owner's Manual page 129

Main Menu Table of Contents
Automatic Transmission
If you try to manually downshift at a
speed that would cause the engine to
exceed the redline in the lower gear,
the transmission will not downshift.
If that downshift is from second gear
to first gear, the gear indicator will
flash ''1'' several times, then return
to ''2''.
When manually downshifting from
second gear to first gear below
redline, you must depress the
accelerator pedal to get the
transmission to downshift. If you do
not, the gear indicator will flash as
described. This is not necessary
when downshifting in any of the
other gears.
126
Driving
Second (2) This position locks
the transmission in second gear. It
does not downshift to first gear
when you come to a stop.
Use Second gear:
For more power when climbing.
To increase engine braking when
going down steep hills.
For starting out on a slippery
surface or in deep snow.
First (1) To shift from Second to
First, press the release button on the
shift lever. With the lever in this
position, the transmission locks in
First gear.
Engine Speed Limiter
If you exceed the maximum speed
for the gear you are in, the engine
speed will enter into the tachometer's
red zone. If this occurs, you may feel
the engine cut in and out. This is
caused by a limiter in the engine's
computer controls. The engine will
run normally when you reduce the
RPM below the red zone.