Acura 2007 RL Owner's Manual page 354

Automatic Transmission
This position is
Drive (D )
3
similar to D, except only the first
three gears are selected. Use D
when towing a trailer in hilly terrain,
or to provide engine braking when
going down a steep hill. D can also
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keep the transmission from cycling
between third, fourth, and fifth gears
in stop-and-go driving.
For faster acceleration when in D or
D, you can get the transmission to
automatically downshift by pushing
the accelerator pedal to the floor.
The transmission will shift down one,
two, or three gears, depending on
your speed.
348
Engine Speed Limiter
If you exceed the maximum speed
for the gear you are in, the engine
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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.
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Before downshifting, make sure the
engine will not go into the
tachometer's red zone.
Shift Lock Release
This allows you to move the shift
lever out of Park if the normal
method of pushing on the brake
pedal does not work.
1. Set the parking brake.
2. Make sure the ignition switch is in
the LOCK (0) position.
To release the reverse lockout, make
sure the ignition switch is in the
ACCESSORY(I) position.