1996 Buick Riviera Owner's Manual - Page 338

Parking Brake andAdtomatic "ransaxle PARK (P) Mechanism Ch.wk Park on a fairly steep hill, with the vehicle facing downhill. Keeping your foot on the regular brake, set the parking brake. When you are doing this check, your vehicle could beginto move. You or others could be injured and property could be damaged. Make sure thereis room in front of your vehicle in case it beginsto roll. Be ready to apply the regular brake at once should the vehicle begin move. to @ To check the parking brake: With the engine running and transaxle in.NEUTRAL (N), slowly remove foot Do pressure from the regular brake pedal. this until the vehicleis held by the parking brakeonly. To check the PARR (P) ,mechanism's holding ability Shift to PARK (P). Then-releaseall brakes. Underbody Flushing S~e-rvice At least every spring,use plain water to flush any corrosive materials from the underbody. Take care to clean thoroughly any areas where and other debris mud can collect.