2010 Cadillac STS Owner's Manual - Page 493

Additional Required Services At Each Fuel Stop . . Engine oil level check. See Engine Oil on page 6‑18. Engine coolant level check. See Engine Coolant on page 6‑27. Windshield washer fluid level check. See Windshield Washer Fluid on page 6‑36. Engine cooling system and pressure cap pressure check. Radiator and air conditioning condenser outside cleaning. See Cooling System on page 6‑26. Exhaust system and nearby heat shields inspection for loose or damaged components. Accelerator pedal check for damage, high effort, or binding. Replace if needed. If the vehicle has a Tire Sealant and Compressor Kit, check the sealant expiration date printed on the instruction label of the kit. See Tire Sealant and Compressor Kit (Without Selector Switch) on page 6‑78 or Tire Sealant and Compressor Kit (With Selector Switch) on page 6‑87. Vehicles using DOT 4 brake fluid only: Brake fluid replacement. . . . . . Once a Month . Tire inflation check. See Inflation - Tire Pressure on page 6‑60. Tire wear inspection. See Tire Inspection and Rotation on page 6‑67. Starter switch check. See Owner Checks and Services on page 7‑7. Parking brake and automatic transmission P (Park) mechanism check. See Owner Checks and Services on page 7‑7. Automatic transmission shiftlock control system check. See Owner Checks and Services on page 7‑7. . Once Every Two Years . Once a Year . . First Engine Oil Change After Every 40 000 km/25,000 Miles . . Fuel system inspection for damage or leaks. Passenger compartment air filter replacement (or every 12 months, whichever occurs first). More frequent replacement may be required if vehicle is driven regularly under dusty conditions. . 7-5