2010 Cadillac DTS Owner's Manual - Page 438

Parking Brake and Automatic Transmission P (Park) Mechanism Check Recommended Fluids and Lubricants Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer/retailer. Fluid/Lubricant The engine requires a special engine oil meeting GM Standard GM4718M. Oils meeting this standard can be identified as synthetic, and should also be identified with the American Petroleum Institute (API) Certified Engine Oil for Gasoline Engines starburst symbol. However, not all synthetic API oils with the starburst symbol will meet this GM standard. Look for and use only oil that meets GM Standard GM4718M. For the proper viscosity, see Engine Oil on page 6-13. 50/50 mixture of clean, drinkable water and use only DEX-COOL® Engine Coolant Coolant. See Engine Coolant on page 6-23. 3 Hydraulic Brake Fluid Hydraulic Brake DOT Part No. U.S. 88862806, in (GM System Canada 88862807). Usage { WARNING: When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case it begins to roll. Be ready to apply the regular brake at once should the vehicle begin to move. Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot on the regular brake, set the parking brake. • To check the parking brake's holding ability: With the engine running and the transmission in N (Neutral), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only. • To check the P (Park) mechanism's holding ability: With the engine running, shift to P (Park). Then release the parking brake followed by the regular brake. Contact your dealer/retailer if service is required. 7-8