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Home >> GMC >> 2024 >> Terrain SLT, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Automatic Transmission - 6T40 (MNH) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Transmission Service Fast Learn >> With Scan Tool

With Scan Tool

WARNING: This page is about a different car, the 2024 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:

Refer to Parking Brake and Drive Wheels Warning .

NOTE:

The Q77 Transmission Control Solenoid Valve Characterization Programming must be performed before the Transmission Service Fast Learn procedure.

  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
      • If the scan tool parameter displays the following: Transmission Temperature is Above Operating Temperature - Perform the following procedure/test: Procedure 1 & Repeat step 8
      • If the scan tool parameter displays the following: 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:  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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