Black plate (21,1)Cadillac DTS Owner Manual - 2011Automatic Transmission FluidWhen to Check and Change AutomaticTransmission FluidA good time to check the automatic transmission fluidlevel is when the engine oil is changed.Change the fluid and filter at the intervals listed inScheduled Maintenance on page 7‑3, and be sure touse the transmission fluid listed in RecommendedFluids and Lubricants on page 7‑9.How to Check Automatic TransmissionFluidBecause this operation can be a little difficult, youmay choose to have this done at the dealer servicedepartment.If you do it yourself, be sure to follow all the instructionshere or you could get a false reading on the dipstick.Notice: Too much or too little fluid can damage thetransmission. Too much can mean that some of thefluid could come out and fall on hot engine partsor exhaust system parts, starting a fire. Too littlefluid could cause the transmission to overheat. Besure to get an accurate reading if checking thetransmission fluid.Wait at least 30 minutes before checking thetransmission fluid level if you have been driving:. When outside temperatures are above32°C (90°F).. At high speed for quite a while.. In heavy traffic — especially in hot weather.. While pulling a trailer.To get the right reading, the fluid should be at normaloperating temperature, which is 82°C to 93°C(180°F to 200°F).Get the vehicle warmed up by driving about 24 km(15 miles) when outside temperatures are above 10°C(50°F). If it is colder than 10°C (50°F), you may have todrive longer.6-21
