2021 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE

Transmission Control Device: Installation

  1. Install the detent spring.

    Tightening torque: 

    7 N.m (0.7 kgf-m, 5.2 ft-lb)

  2. Install the manual plate, parking rod, shifter arm shaft and bolt.

    Tightening torque: 

    7 N.m (0.7 kgf-m, 5.2 ft-lb)

  3. Install a new spring pin.
  4. Install the inhibitor switch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Inhibitor Switch>INSTALLATION .
  5. Adjust the inhibitor switch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Inhibitor Switch>ADJUSTMENT .
  6. Install the control valve body and oil pan. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Control Valve Body>INSTALLATION .
  7. Install the transmission body. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transmission Assembly>INSTALLATION .
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:

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