Drive Modes

Drive Modes refer to the main transmission states such as Park, Reverse, Neutral, and Drive (Auto, Sport, Manual). Selection of the desired drive mode can be achieved a variety of ways including:

• CAN bus shifter (preset or custom)
• Analog shifter position
• Digital shifter position matrix
• Switches or buttons
• Up Shift & Down Shift switches
• Combinations of the above

Drive Mode Input Priorities

Drive mode input sources have fixed priorities. This allows them to be used in conjunction with one-another with predictable results. Inputs with higher priority will override inputs with lower priority.

Example: If the shifter is in the Neutral position, but the Park Request Switch is enabled and in the active (ON) state, the transmission will remain in Park until the Park Request Switch becomes inactive (OFF) because the Park Switch has higher priority than the Shifter Position input.

Manual Override

Manual Override puts the TCM into Manual while Drive or Sport is selected, without the driver having to select Manual. It is applied after the input priorities above, and can come from the Manual Override Switch or from the Up Shift & Down Shift switches.

While the Manual Switch has selected Manual, the Manual Override inputs have no effect.

Manual Override Switch

While the Manual Override Switch is ON, selecting Drive or Sport gives Manual instead. Turning the switch OFF returns the TCM to Drive or Sport.

This works however Drive or Sport is selected (shifter, Drive or Sport Switch, or holding Up Shift from Neutral), and whether the switch is turned ON before or after Drive or Sport is selected.

Example: The Manual Override Switch is already ON when the TCM starts up. Selecting Drive from Neutral goes straight to Manual. Turning the switch OFF then changes to Drive.

Selecting Park, Reverse or Neutral ends the override. If the switch is still ON when Drive or Sport is selected again, the TCM goes back to Manual.

Up / Down Shift Switches

Set Up / Down Shift Switch Behaviour (Automatic Shift > Auto Shift Setup) to Manual Override to have an Up Shift or Down Shift press in Drive or Sport change to Manual. The press also requests the shift.

The TCM returns to Drive or Sport when any of the following happens:

• Manual Override Timeout: No Up Shift or Down Shift press has been made for this time. Each press restarts the timer. Set to 0 to stay in Manual until cancelled.
• The Manual Switch is pressed.
• Park, Reverse or Neutral is selected.

If the Manual Override Switch is also ON, the TCM stays in Manual until that switch is turned OFF.