Operation Tips, Allison Transmissions
Refer to the Allison website for additional information: see www.allisontransmission.com.
Warning: Never shift from neutral (N) to drive (D) or reverse (R) at engine speeds above idle. The vehicle will lurch forward or backward, which could cause property damage and personal injury.
Notice: The engine should never be operated for more than thirty seconds at full throttle with the transmission in gear and the output stalled. Prolonged operation of this type will overheat the transmission fluid and will result in severe damage to the transmission.
Notice: Do not allow the vehicle to coast in neutral. This can result in severe transmission damage. Also, no engine braking is available.
The following tips highlight important operation principles.
-
Use reverse (R) to back the vehicle. Completely stop the vehicle before shifting from a forward gear to reverse, or from reverse to forward.
-
Select drive (D) for all normal driving conditions. The vehicle will start out in 1st gear (unless the transmission is programmed with 2nd gear start), 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 at higher engine speeds. 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. When in Manual mode, push or pull on the multifunction stalk switch to reach the desired gear. In the lower gear ranges, the transmission will not upshift above the highest gear selected unless the hold override upshift speed is exceeded.
-
Use neutral (N) and apply the parking brake when the vehicle is parked with the engine running.