GM Service Manual Online
For 1990-2009 cars only

Condition

Action

Dipstick loose

Tighten the cap. Replace the cap if necessary.

Fluid level too high

Drain the fluid to the proper level. Refer to Transmission Fluid Check .

Fluid level too low

Add fluid to the proper level. Refer to Transmission Fluid Check .

Breather stopped up - clogged

Clean or replace the breather.

Dipstick or fill tube seal worn

Replace the seals or dipstick.

Incorrect dipstick marking

Calibrate the dipstick.

Fluid contaminated with engine coolant or water

Drain and replace fluid. Locate and fix source of additional fluid. Refer to Transmission Fluid Check and Automatic Transmission Fluid and Filter Replacement .