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Home >> GMC >> 2021 >> Terrain SLE, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Automatic Transmission - 9T45 (M3U) Or 9T50 (M3D M3H) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Transmission Service Fast Learn Procedure >> With Scan Tool

With Scan Tool

WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:

After releasing the parking brake, be sure the vehicle will not roll forward or backwards when removing the wheel blocks. If the vehicle is not in gear, the vehicle may move possibly causing personal injury.

  1. Perform the following steps :
    1. Vehicle - Outside
    2. Parking Brake - Applied
    3. Drive Wheels - Blocked
  2. Engine - Idling - At normal operating temperature.
  3. Transmission Range - P
  4. Select : Module Diagnostics
  5. Select : Transmission Control Module
  6. Select : Configuration/Reset Functions
  7. Select : Transmission Service Fast Learn
  8. Verify the scan tool parameter is not available : Transmission Fluid Temperature
    • If the scan tool parameter is available 
    1. Engine - Idling
    2. Observe the scan tool parameter :
      • Transmission Fluid Temperature = Transmission Temperature is Above Operating Temperature - Perform the following procedure/test : Procedure 1 & Repeat step 8
      • Transmission Fluid Temperature = Transmission Temperature is Below Operating Temperature - Perform the following procedure/test : Procedure 2 & Repeat step 8
    • Go to next step : If the scan tool parameter is not available 
  9. Follow the instructions on the scan tool.

    Verify the scan tool procedure was successful.

    • If the procedure was not successful 

      Refer to : Step 1

    • Go to next step : If the procedure was successful 
  10. All OK.

Procedure 1

  1. Ignition/Vehicle - Off - For greater than 10 min
  2. Engine - Idling - For 10 s

Procedure 2

    WARNING:

    When performing a brake torque procedure, the vehicle must be parked outdoors away from any buildings, people, or other vehicles. Failure to follow these precautions may result in severe vehicle damage, and/or serious bodily injury.

  1. Brake Pedal - Apply & Hold
  2. Transmission Range - D
  3. Engine Speed - 1.2k to 1.5k RPM - For 5 s
  4. Engine - Idling - For 10 s
  5. Transmission Range - P
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