Black plate (5,1)Cadillac STS Owner Manual - 2011Additional Required ServicesEvery 12 000 km/7,500 Miles. If tire rotation is recommended for the vehicle,rotate tires. Tires should be rotated every12 000 km/7,500 miles. See Tire Inspection andRotation on page 6‑65.At Each Fuel Stop. Engine oil level check. See Engine Oil onpage 6‑16.. Engine coolant level check. See Engine Coolanton page 6‑25.. Windshield washer fluid level check. SeeWindshield Washer Fluid on page 6‑34.Once a Month. Tire inflation pressures check. See Inflation - TirePressure on page 6‑58.. Tire wear inspection. See Tire Inspection andRotation on page 6‑65.. Sunroof track and seal inspection, if equipped. SeeSunroof on page 3‑57.Once a Year. Starter switch check. See Owner Checks andServices on page 7‑7.. Automatic transmission shiftlock control functioncheck. See Owner Checks and Services onpage 7‑7.. Parking brake and automatic transmission P (Park)mechanism check. See Owner Checks andServices on page 7‑7.. Accelerator pedal check for damage, high effort,or binding. Replace if needed.. If the vehicle has a Tire Sealant and CompressorKit, check the sealant expiration date printed onthe instruction label of the kit. See Tire Sealant andCompressor Kit (Without Selector Switch) onpage 6‑76 or Tire Sealant and Compressor Kit(With Selector Switch) on page 6‑85.. Underbody flushing service.7-5