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Operation
Neutral Coast Mode
Neutral Coast Mode automatically shifts the transmission system into a neutral
state on slight downhill grades when all of the following conditions are met:
•
Vehicle Cruise Control is on
•
Transmission is in Drive (D) mode
•
Downhill grade identified by transmission system
•
No engine power is being applied
When Neutral Coast Mode is active, the engine will drop to idle speed and the
transmission system will automatically shift into a neutral state. During a Neu-
tral Coast Mode event, the gear display may flash a gear number or “N”, or an
OEM-specific character such as “SC”, depending upon the specific OEM imple-
mentation.
Note:
Gear display indicators, messages, and tones will vary based on how the
transmission system features and functions are configured in the Transmission
Control Module (TCM) and how the OEM has implemented them. Refer to OEM
for more information on the dashboard display.
•
A flashing number in the gear display indicates the gear position that
the transmission system will engage when necessary.
•
The transmission system will inactivate Neutral Coast Mode and re-
engage a gear if any of the following conditions occur:
-
Driver depresses vehicle service brake
-
Driver depresses vehicle accelerator
-
Vehicle Cruise Control is canceled or inactivated
-
Driver selects a shift mode other than Drive (D) on the transmis-
sion driver interface device
-
Driver performs an Upshift or Downshift request on the transmis-
sion driver interface device
-
Vehicle Cruise Control high or low set speeds are exceeded
-
Maximum vehicle grade is exceeded
-
A vehicle Adaptive Cruise Control system mode request is
received
Note:
Various brand names may be used for Neutral Coast systems. Con-
tact the OEM for more information.
