1993 Chevrolet Suburban Owner's Manual - Page 93
1993 Chevrolet Suburban Manual
Page 93 highlights
\ It canbedangerous to get out ofyour vehicle if the shift lever is nut fully in P (Park)withtheparkingbrakefirmlyset. If youhave four-wheeldrive,alsobesurethetransfercaseis in adrivegear. Your vehiclecanroll. If youhavelefttheenginerunning,thevehicle or otherscouldbeinjured. To be sureyour canmovesuddenly.You vehicle won'tmove,follow thesteps below.Ifyou areparking ona onHills'' or "Trailer hill, or if you'repullingatrailer,see"Parking Towing" in theIndex. If yourvehiclehasfour-wheeldrive,youcansendyourengine'sdrivingpower to all four wheels for extra traction. To get the most satisfaction out of four-wheeldrive, you mustbefamiliarwithitsoperation.Read the pan that followsbeforeusingfour-wheeldrive. You should use 2H for mostnormal drivingconditions. I Driving in the 4H or 4L positions for a long time on dry or wet pavement could shorten the life ofyourvehicle'sdrivetrain. Transfer Case 2-30