1998 Pontiac Firebird Owner's Manual - Page 278

How to Check Because this operation can difficult, you may be choose to have this done at your Pontiac dealership Service Department. If you do it yourself, be sure to follow all the instructions here, or you could get a false reading. Then, follow these steps: NOTICE: Too much or too little fluid can damage your of transmission. Too much can mean that some the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Be sure to get an accurate readingyou check your if transmission fluid. 5-Speed (6-Speed Similar) 1. Remove the filler plug. 2. Check that the lubricant level is up to the bottom of Check the fluid level only when your engineoff, the is the filler plug hole. vehicle is parked on a level place and the transmission is cool enough for you to rest your fingers the on 3. If the fluid levelis good, install the plug and be sure transmission case. it is fully seated.If the fluid levelis low, add more fluid as describedin the next steps. c 6-25