For the automatic transmission only, the dipstick for the transmission fluid is located on the driver side of the engine near the power brake booster. It is low in the engine bay so you may get your arm/hand dirty when checking the fluid level. Follow the proceedure in your manual to get an accurate reading.
I've owned 3 of these cars with the auto trans & have found that they require aggressive maintenance to prevent potential problems. The CD4E transmission is known to have overheating & wear issues. I perform a 4 quart drain & fill with every other oil change to keep the fluid clean & the tranny in top shape. Each of my cars has well over 100k miles without serious problems.