Black plate (7,1)Cadillac STS Owner Manual - 2011First Engine Oil Change After Every160 000 km/100,000 Miles. Automatic transmission fluid and filter change(normal service). See Automatic TransmissionFluid on page 6‑23.. All‐wheel drive only: Transfer case fluid change(normal service). Check vent hose at transfer casefor kinks and proper installation. Check to be surevent hose is unobstructed, clear, and free ofdebris.. Spark plug replacement and spark plug wiresinspection. An Emission Control Service.First Engine Oil Change After Every240 000 km/150,000 Miles. Engine cooling system drain, flush, and refill(or every five years, whichever occurs first). SeeEngine Coolant on page 6‑25. An EmissionControl Service.. Engine drive belts inspection for fraying, excessivecracks, or obvious damage (or every 10 years,whichever occurs first). Replace, if needed.Owner Checks and ServicesStarter Switch Check{ WARNING:When you are doing this inspection, the vehiclecould move suddenly. If the vehicle moves, you orothers could be injured.1. Before starting this check, be sure there is enoughroom around the vehicle.2. Firmly apply both the parking brake and the regularbrake. See Parking Brake on page 3‑33.Do not use the accelerator pedal, and be ready toturn off the engine immediately if it starts.3. Try to start the engine in each gear. The vehicleshould start only in P (Park) or N (Neutral). If thevehicle starts in any other position, contact yourdealer for service.7-7
