M977 Through M985 General Operating Procedures (Cont)
2. Transmission (FHTV Model Vehicles).
The MODE button is locatd on the transmission range
selector. The MODE button does not perform any
The transmission range selector has six buttons and a
digital display. The six buttons are: R (reverse), N
(neutral), D (drive), (up), (down), and MODE. The
transmission has six forward gears.
The digital display on the transmission range selector
will display R (reverse), N (neutral), or a number (1-6)
depending on range selected.
The lowest gear of any gear range is always first gear.
When transmission is set to D (drive), gear six is
automatically chosen and displayed in the digital
When engine brake is activated and vehicle is
decelerating, no. 3 will be displayed in the digital
Push D (drive) or R (reverse) button depending on direction required.
Do step (2) only if a lower transmission operating range
When setting a new transmission operating range, the
top gear of the desired operating range must be chosen
and displayed on the transmission range selector.
Using the (up) and (down) buttons, adjust the display reading
until the top gear of the desired transmission operating range is