Owner's Manual
Page 142
... still have some power brake assist. That means of heavy braking. See "Anti-Lock Brake System Warning Light" in the Index. 4-6 Anti-Lock Brakes (ABS) Your Buick has an advanced electronic brakingsystem that your brakes. Once the power assist is used up, it when you 're driving, ...brake normally but don't pump your brake pedal moves a little while this is the ABS system testing itself. This light on the instrument panel...
... still have some power brake assist. That means of heavy braking. See "Anti-Lock Brake System Warning Light" in the Index. 4-6 Anti-Lock Brakes (ABS) Your Buick has an advanced electronic brakingsystem that your brakes. Once the power assist is used up, it when you 're driving, ...brake normally but don't pump your brake pedal moves a little while this is the ABS system testing itself. This light on the instrument panel...