Allison Transmission > Service > Frequently Asked Questions
Frequently Asked Questions
| Allison Transmission Service - WT Products (MD, HD, B, MH) | |
| Q: What does the MODE button do? | |
| Q: What is my oil filter part number? | |
| Q: What does the MODE button do? | |
| A: The MODE button may allow the driver to enable a secondary shift schedule or other special function that has been previously programed into the electronic control unit at the request of the OEM. For example, the OEM for a motorhome may have provided a secondary shift schedule for improved fuel economy. The name of the special function (ECONOMY) should appear on the MODE ID label adjacent to the MODE button. Pressing the MODE button activates the ECONOMY shift schedule and illuminates the MODE INDICATOR (LED). Other special functions which may be activated by the MODE button are D1 selection or PTO enable. The MODE button is also used to view diagnostic code information. | |
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| Q: What is my oil filter part number? | |
A: You will need to know the depth of your transmission oil sump. Your WT Series transmission will have either a 2-inch sump or a 4-inch sump.
Filters must be ordered from an Allison Distributor or Dealer. Look in the Allison Sales & Service Locator to find the nearest Allison Facility. You may also order a Parts Catalog on the 'publications' channel of this site. |
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