Operation

rv dm 08.02.002

Start the engine.
Use Reverse (R) to back the vehicle. Completely stop the vehicle before shifting from a forward gear to Reverse (R) or from Reverse (R) to a forward gear. There is only one Reverse (R) gear.
Select Drive (D) for all normal driving conditions. The vehicle will start out in First (1) gear, and as speed increases, the transmission will upshift through each gear automatically. As the vehicle slows down, the transmission will downshift to the correct gear automatically.
The pressure of your foot on the accelerator pedal influences the automatic shifting. When the pedal is fully depressed, the transmission will automatically upshift near the governed speed of the engine. A partially depressed position of the pedal will cause the upshifts to occur at a lower engine speed.
Occasionally the road, load, or traffic conditions make it desirable to restrict the automatic shifting to a lower range. The lower the gear range, the greater the engine braking power.
Use the up or down arrow buttons on the shift selector to reach the desired gear.

Note: In the lower gear ranges, the transmission will not upshift above the highest gear selected unless the engine governed speed is exceeded.

Use Neutral (N) and apply the parking brake when the vehicle is parked with the engine running.
See the Allison Transmission Owner's Manual for more information on 3000 and 4000 MH transmission operation.

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