1993 Pontiac Firebird Owner's Manual - Page 235

Service & Appearance Care Manual Transmission Fluid When to Check: A good time to have it checked is when the engine oil is changed. However, the fluid in your manual transmission doesn't require changing. How to Check: Because this operation can be a little difficult, you may choose to have this done at a Pontiac dealership Service Department. If you do it yourself, be sureto follow all the instructions here, or you could get a false reading. NOTIC& ,100 much or too little nula can damage your transmission. Too ch can mean that some of th Id could come out and fall on gine parts, starting a fire. Be get an accurate reading if yo eck your transmission fluid. Then, follow these steps: 1. Remove the filler plug. 2. Check that the lubricant level is to up the bottom of the filler plug hole. 3. If the fluid level is good, install the plug and be sureit is fully seated. If the fluid level islow, add more fluid as described in the next steps. Check the fluid level only when your engine is off, the vehicle is parked on a level place and the transmission is cool enough for you to rest your fingers on the transmission case.