GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1248160  Size: SH

    Caution: The engine must be running when the transmission fluid fill plug is removed, or excessive fluid loss will occur. Transmission fluid may be hot. Since the actual fluid level is unknown, stand clear when removing the fill plug. Have a container ready to capture any lost fluid. Do not turn the engine off with the fill plug removed, as you can be injured by hot transmission fluid being expelled out of the oil fill opening.

  1. With the vehicle on a level surface and the fluid in the transaxle cold, remove the filler plug and check the fluid level. The fluid should come to the bottom edge of the plug hole.

  2. Object Number: 1248162  Size: SH
  3. If the level is low, add SAE 75W90 manual transaxle fluid through the filler plug hole until the fluid begins to run out.
  4. Reinstall the filler plug and tighten it securely.
  5. If the fluid is contaminated, drain the oil after removing the differential gear cover.