1997 Buick Riviera Owner's Manual - Page 88

FIRST (1): This position gives you even more power but lower fuel economy than SECOND (2). You can use it on very steephills, or in deep snow or mud. If the selector lever is in FIRST (1), the transaxle put won't shift intomRST (1) until the vehicle is going slowly enough. Parking Brake NOTICE: I your front wheels can't rotate,don't try to f drive. This might happen you were stuck in if very deep sandor mud or were up against solid a object. You could damage your transaxle. Also, if you stop whengoing uphill, don't hold your vehicle there with only the accelerator pedal. This could overheatand damage the transaxle. Use your brakes or shift intoPARK (P) to hold yourvehicle in position on a hill. Setting the parking brake: Hold the regular brake pedal down withyour right foot. Fksh downthe parking brake pedal with your foot. If the ignition is on, the left brake system warninglight will come on and a single chime will be heard. The parking brake uses the brakes on the rear wheels. 2-27