1993 GMC Suburban Owner's Manual - Page 133

K2325 Your vehicle'shydraulicbrakesystemisdividedinto two parts. Ifone part isn'tworking,theotherpartcanstillworkandstopyou.Forgoodbraking, If thewarninglightgoeson,there though,youneedbothpartsworkingwell. couldbe a brakeproblem.Haveyourbrakesysteminspectedrightaway. Thislightshouldcomeonasyoustartthevehicle. If it doesn'tcome on then,have it fixed so itwillbeready to warnyou if there'saproblem. Thislight will alsocomeonwhenyousetyourparkingbrake,and it willstay on if your parkingbrakedoesn'trelease fully. If it stays on afteryourparking brakeisfullyreleased, it meansyoumayhaveabrakeproblem. If thelightcomesonwhiledriving,pull off theroadandstopcarefully. You maynoticethatthepedalisharder to push.Or,thepedalmay go closer to thefloor. It maytakelonger to stop. If thelightisstillon,havethevehicle towedforservice.(See"Towing YourVehicle" in theIndex.) Your brakesystemmaynotbeworkingproperly if thebrakewarning light is on.Drivingwiththebrakewarninglightoncanleadtoan accident. If thelight is stillonafteryou'vepulled off theroadand stoppedcarefully,havethevehicletowedforservice. 2-69