Question: how to check automatic transmission fluid in 2003 cavalier?
Answer: Drive the vehicle for 5 to 10 minutes to warm up the transmission fluid. ...  Pop the hood and locate the transmission fill cap on the lower left-hand side (driver's side) on the center of side of the engine. ...  Raise the vehicle. ...  Crawl under vehicle using a creeper if you have one, and locate the bottom of the transmission.