GM Service Manual Online
For 1990-2009 cars only

Draining Procedure

Note: The fluid check bolt at the front of the transmission may not be opened.

Note: The transmission fluid drained out during the pre-delivery inspection may be re-used. New transmission fluid must be used during servicing work.

The transmission fluid must be brought up to operating temperature before draining.

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. If necessary remove the lower engine cover. Refer to NEED CELL LINK.
  3. Remove the battery box. Refer to Battery Box Replacement.

  4. Object Number: 2020402  Size: SH
  5. Clean away all dirt and debris from the transmission fluid drain fastener area.
  6. Position an appropriate container under the transmission.
  7. Remove the transmission fluid drain fastener (1).
  8. Allow the transmission fluid to drain into the container.
  9. Caution: Refer to Fastener Caution in the Preface section.

  10. Install a new transmission fluid drain fastener.
  11. Tighten
    Tighten the new transmission fluid drain fastener to 20 N·m (15 lb ft).

  12. Remove the container used to catch the used transmission fluid from under the vehicle.

Filling Procedure


    Object Number: 2020403  Size: SH
  1. Clean away all dirt and debris from the transmission fluid fill fastener area.
  2. Remove the transmission fluid fill fastener (1).
  3. Fill the transmission to just below the bottom of the fill fastener hole with the recommended fluid. Refer to NEED CELL LINK.
  4. The M32 transmission requires 2.2 liters transmission fluid.

    Note: If a new transmission is installed, it must be filled with 1.7 liters of transmission fluid because the new transmission contains 0.68 liters of transmission fluid from the factory.

  5. Install a new transmission fluid fill fastener.
  6. Tighten
    Tighten the new transmission fluid fill fastener to 30 N·m (22 lb ft).

  7. Lower the vehicle.