1996 Cadillac DeVille Owner's Manual - Page 278

Automatic Transaxle Fluid When to Check and Change A good timeto check your automatic transaxle fluid level is when the engine oil is changed. Change both the fluidand filter every50,000 miles (83 0oO km) if the vehicleis mainly driven under one or more of these conditions: How to Check Because this operation can a little difficult,you may be choose to have this doneyour Cadillac dealership at service department. If you do it yourself,be sure to follow all the instructions here, or you could get a false reading on the dipstick. In heavy city traffic wherethe outside temperature regularly reaches90°F (32°C) or higher. In hilly or mountainous terrain. 0 0 I NOTICE: Too much or too little fluid can damage your transaxle. Too much can mean that some of the fluid could come out and fall hot engine parts on or exhaust ,systemparts, starting a fire. sureto Be get an accurate reading you check your if transaxle fluid. When doing frequent trailer towing. Uses such as found in taxi, police delivery service. or If you do not use your vehicle under any these of conditions, the fluid filter do not require changing. and See "Scheduled Maintenance Services" in the Maintenance Schedule booklet. 6-17