Transmission Operation; Gear Selector; Check Trans; Compression Brake - Fleetwood Expedition Owner's Manual

TRANSMISSION OPERATION
Your motor home is equipped with an automatic
transmission. Please note that this transmission
does not provide a PARK position. You MUST
set the parking brake whenever you park the
motor home.
Up- and down-shifting is automatic under most
driving conditions. You may manually shift the
transmission under marginal or poor traction
conditions, up and/or downhill or mountain
driving, or under any driving condition to main-
tain complete vehicle control.
This transmission has an electronic control
system.
A.
WARNING
The transmission does not have a "PARK" position.
Place transmission in neutral (N) and set the parking
brake when parking the motor home.
Gear Selector
Your chassis is equipped with an MH Series
transmission. The shifter is connected to an
Electronic Control Unit (ECU), which processes
signals from the shifter and in turn controls the
transmission.
The push-button shift selector has snap dome-
type switches. Each pad (R, N, D, Up or Down
arrow) is a switch. Just push on the pad for the
desired operation. A slight snap will be felt. The
digital display shows the chosen operation, a
"beep" tone will sound and the transmission will
shift to the starting range as indicated on the dig-
ital display. In Drive, selection of a specific gear
range is accomplished with the Arrow Pads.
Conditions resulting in the illumination of the
check trans light located on the instrument panel,
will disable the pad and no beeps will be heard.
Check Trans
Every time the engine is started, the check trans
light comes on. It will go off after a few sec-
On The Road
onds. This momentary lighting is to show that
the status light circuit is working properly. If the
light does not come on during engine start or if
it remains on after ignition, service should be
requested immediately.
Illumination of this light, accompanied by a
flashing display from the shift selector, indicates
that shifts are being restricted. Operation may
continue in order to reach service assistance.
The ECU may not respond to shift selector
requests since operating limitations are being
placed on the transmission; i.e., upshifts and
downshifts may be restricted. Direction
changes will not occur. The ECU will not
respond to operator requests. When the check
trans light comes on and the ignition switch is
turned off, the transmission will remain in N
(neutral) until the condition is corrected.
Compression Brake
Important: The Compression Brake is a
vehicle slowing device, not a vehicle stopping
device. It is not a substitute for the vehicle
service brakes. Use of the Compression Brake
for vehicle downhill control and slowing down
on level terrain will allow the service brakes
to remain cool and ready for any emergency.
OPERATION
To get the best result from the compression
brake, it is necessary to observe several simple
operating principles.
The compression brake is activated when the
following conditions are satisfied.
1. The compression brake dash ON/OFF
switch is in the on position.
2. The engine is not being fueled (foot off the
throttle pedal).
The Allison Transmission provides for optimum
retarding downshift operation when the compres-
sion brake is selected. When the compression
brake dash switch is turned ON and your foot is
removed from the throttle pedal, the transmission
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