1993 GMC Safari Owner's Manual - Page 173

Disc Brake Wear Indicators Your vehiclehasfrontdiscbrakesandreardrumbrakes.Discbrakepads have built-in wear indicatorsthatmakeahigh-pitchedwarningsoundwhen thebrakepadsarewornandnewpadsareneeded.Thesoundmaycome is moving(exceptwhenyouare andgoor be heard allthetimeyourvehicle pushingonthebrake pedal firmly). CAUTION r Thebrakewearwarningsoundmeansthatsoonerorlateryour brakeswon'tworkwell. That could lead to anaccident.Whenyou hear brake warning the wear sound, your have vehicle serviced. I I NOTICE Continuin- to drive with worn-out brake pads could result in costly brake repai is Somedrivingconditionsorclimatesmaycauseabrakesquealwhenthe brakesarefirstappliedorlightlyapplied. This doesnotmeansomething wrongwithyourbrakes. Rear Drum Brakes Your reardrumbrakesdon'thavethewearindicators,but if youeverheara rearbrakerubbingnoise,havetherearbrakeliningsinspected.Also,therear brakedrumsshouldberemovedandinspectedeachtimethetiresare removedforrotationorchanging.Whenyouhavethefrontbrakesreplaced, havetherearbrakesinspected,too. Brakeliningsshouldalways be replaced as completeaxlesets. Brake Pedal Travel Seeyourdealer if thebrakepedaldoesnotreturn to normalheight,or if thereisarapidincrease in pedaltravel.Thiscouldbeasign of brake trouble. Brake Adjustmenr Everytimeyoumakeabrakestop,yourdiscbrakesadjustforwear. brakepedalgoesdownfartherthannormal,yourreardrumbrakesmayneed adjustment.Adjustthembybackingupandfirmlyapplyingthebrakesafew times. If your 4-1 7