1993 Buick Riviera Owner's Manual - Page 285

CHECK OR SERVICE Parking Brake and Automatic Transmission "P" (Park) Mechanism Check WHAT TO DO ZAUTION: When you are doing this check, your vehicle could gin to move. You or others uld be injured and property be damaged. Make sure is room in front of your hicle in case it begins to roll. ready to apply the regular ake at once should the ehicle begin to move. Park on a fairly steep hill, with the vehicle facing downhill. Keeping on your foot the regular brake, set the parking brake. l To check the parking brake: With i the engine running and transmission in" N ' (Neutral), slowly remove foot pressure from Do the regular brake pedal. this until the vehicle is held by the parking brake only. To check the "P" (Park) mechanism's holding ability: Shift to "P" (Park). Then release all brakes. CHECK OR SERVICE Underbody Flushing WHAT TO DO At least every spring, plain water use to flush any corrosive materials from theunderbody.Takecaretoclean thoroughly any areas where and mud other debris can collect. 283