1993 GMC Suburban Owner's Manual - Page 183

I yourengineeverstopswhileyou'redriving,brakenormallybutdon't f pumpyourbrakes. If youdo,thepedalmaygetharder to pushdown. If yourenginestops,you will still have some power brake assist. But you will use it whenyou.brake.Oncethepowerassist isusedup, it may take longer to stop and the brake pedal wil beharder to push. A n M x k Brakes (ABS) Your vehicle has an advanced electronic braking system that can help keep it under .control. to driveaway,youmayhear Whenyoustartyourvehicleandbegin momentarymotororclickingnoise,ThisistheABSsystemtestingitself. a AM415006 Here'showanti-lock works. Let'ssaythe.road is wet. You'redrivingsafely. 'Suddenly -an- animal jumps out in front of you. Youslamonthebrakes.Here'swhathappenswith ABS. ' A computersensesthatwheelsareslowingdown.Thecomputerseparately worksthebrakesateachfrontwheelandattherearwheels.Theanti-lock system,' can change the brake pressure faster. than any driver could. The computer, is programmed to make the most of available tire and 'road conditions. You can steer around the obstacle while braking hard. 4-1 5