Allison Automatic Transmissions

wv dm 05.07.001

Allison automatic transmissions are controlled by one of the following shift controls depending on what is installed in the vehicle. See figure and figure . For vehicles equipped with the automatic transmission multifunction control, shown in figure , the control moves in two directions and has two switches. It is used to request manual shifts, change shift mode, set engine brake levels, and control specialty engine brake functions. See Chapter 7 for complete transmission operating instructions.

Fig. 1, T-Handle Shift Control (typical)

Fig. 2, T-Handle Shift Control (optional shifter)

  • Front View

  • Shift Up/Down Requests

  • Four positions for engine brake settings

  1. Engine Brake Symbol

  2. Drive/Neutral/Reverse Switch

  3. Shift Mode Switch (Economy/Performance/Manual)

  4. Gear Shift Symbol

Fig. 3, Automatic Transmission Multifunction Control

Note:
Parent topic: Powertrain Controls
Document Number: 0000071599
Manual Publication Date: 2024-03-26
Topic Publication Date: 2024-03-26