2022 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE

D Range Shift Function

  1. Connect the Subaru Select Monitor.
    CAUTION: Make sure to route the Subaru Select Monitor wires so that they do not disturb the driving.
  2. Turn the ignition switch to ON. (Engine ON)
  3. Display [Vehicle Speed] and [Actual Gear Ratio].
  4. Make sure that the engine speed is 1, 100 - 1, 300 r/min while driving on the level road at 50 km/h (31 MPH) after accelerating from halting up to 1/4 of accelerator opening angle.
  5. While the vehicle gradually decelerates from the same condition as in step 4 and finally stops, check that [Actual Gear Ratio] changes smoothly according to [Vehicle Speed].
    CAUTION: Make sure to get an assistant on the vehicle and have the person read the data.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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