1993 GMC Suburban Owner's Manual - Page 176

NO PASSING ZONE 1 - AM40201 Pavementmarkings add to trafficsignsandsignals.Theygiveinformation to driverswithouttakingattentionfromtheroadway. A solidyellowline on your side of theroad or lanemeans"don'tcross." Your Own Signals Driverssignal to others,too. It's notonlymorepolite,it'ssafer, to let other driversknowwhat you aredoing.And in some places thelawrequiresdriver signals. Turn and lane change signals: Alwayssignalwhen changelanes. you plan to turn or If necessary,you can use hand signalsoutthewindow:Left arm straightout foraleftturn, down for slowor about-to-stop, and up for a right turn. Slowing down: If timeallows,tapthe brake pedal onceor twice in advance of slowing or stopping. This warns the driver behind you. Disabled: Your four-way flashers signal that your vehicle hazard.See"HazardWarningFlasher" in theIndex. is disabled or is a Traffic Officer The traffic police officer is also a source of importantinformation.Theofficer's signals govern, no matter what the traffic lights or othersignssay. Thenextpartdiscussessomeoftheroadconditions you mayencounter. 4-8