GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Note: The transmission fluid level is always below the inspection bolt opening up to 16 mm (0.63 in). Inspect the transmission fluid level only after repair work on transmission and correct if necessary.


    Object Number: 1935785  Size: SH
  1. Inspect the transmission fluid level.

  2. Object Number: 1936183  Size: LF
  3. Disconnect the back up lamp switch wiring harness plug and remove the switch (1).

Installation Procedure


    Object Number: 1936183  Size: LF
  1. Fill up with the recommended transmission fluid. Refer to Lubrication Specifications.
  2. Add fluid through the back up lamp switch opening.
  3. Fill up with transmission fluid until it emerges at the inspection opening.
  4. Caution: Refer to Fastener Caution in the Preface section.

  5. Tighten the fluid inspection bolt.
  6. Tighten
    Tighten the bolt to 4 N·m (35 lb in) plus 45-135 degrees.


    Object Number: 1935785  Size: SH
  7. Tighten the back up lamp switch (1) 20 N·m (15 lb ft).
  8. • Use a new seal ring.
    • Connect the wiring harness plug to the reversing lamp switch.