4
4. The shift selector displays the oil level data as follows:
• CORRECT FLUID LEVEL – The fluid is within the
correct fluid level zone when OK is shown.
• LOW FLUID LEVEL – The display shows the number
of quarts the transmission oil is low.
• HIGH FLUID LEVEL – The display shows the number
of quarts the transmission oil is overfilled.
Delayed Fluid Level Check
If the fluid level check cannot be completed, one of the following
Oil Level Display faults will be shown:
To exit the oil level function:
• For pushbutton shift selector,
press N (NEUTRAL) button.
• For bump lever shift selector, press the
DIAGNOSTICS button until you return to range display.
Prognostic Features
5th Generation Electronic Controls Shift
Selectors display prognostics in text form to
provide at-a-glance status of Oil Life, Filter Life
and Transmission Health.
The WRENCH ICON will illuminate briefly after you turn
the key to the run position on your Allison-equipped
vehicle to indicate that prognostics are enabled. If the
WRENCH ICON remains on or flashes, this indicates there
is a service issue relating to clutch, filter or fluid life.
PUSHBUTTON
BUMP LEVER
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