1994 Buick Roadmaster Owner's Manual - Page 298

CHECK OR SERVICE Parking Brake/and Automatic Transmission "P,' (Park) Mechanism Check WHAT TODO I cc I E ; F Underbody Flushing WHAT TO DO At least every spring, use plain water to flush any corrosive materials from the care clean underbody. Taketo thoroughly any areas where mud and other debris can collect. . Park on afairlysteephill,withthe vehicle facing downhill. Keeping your the foot the on regular brake, set parking brake. 0 To check the parking brake: With the engine running and transmission in " N ' (Neutral), slowly remove foot regular brake pressure from the pedal. Do thisuntilthevehicle is held by the parking brake only. To check the "P" (Park) mechanism's holding ability: S i t to "P" (Park). hf Then release all brakes. 0