1993 Chevrolet Suburban Owner's Manual - Page 87

Features & Controls Torque Lock Theparkingbrakeshouldbesetfirstwheneverleavingthedriver'sseat. If youareparkedonahillandthetransmission is placed in P (Park)before theparkingbrakeisset,theweight of thevehicle may puttoomuchforce on theparkingpawl in thetransmission.Itmaybedifficult to pull the selector lever out of P (Park).This is called"torquelock." To preventthis,theparking P (Park). brakeshouldbeset BEFORE movingtheselectorleverto Whenpreparing to movethevehicle,theselectorlevershouldbemovedout of P (Park) BEFORE releasingtheparkingbrake.Settheparkingbrakefirst, thenreleasethetransmissionfrom P (Park),even on level surfaces. If "torque lock" doesoccur,youmayhave to haveanothervehiclenudge your vehicle uphill a little to take some of the pressure off the transmission P (Park). whileyou pull theselectorleveroutof Shifting lnto P (Park) (Automatic Transmission Models Only) A It canbedangerous to getoutofyourvehicle fully in P (Park)withtheparkingbrakefirmlyset. roll. if theshiftleverisnot Your vehiclecan I If youhavelefttheenginerunning,thevehiclecanmovesuddenly. Youorothers couldbeinjured. To besureyourvehiclewon'tmove, whenyou'reonfairlylevelground,usethestepsthatfollow. If youhavefour-wheeldrive,andyourtransfercase is in N (Neutral), your vehicle will befree to roll-even if yourshiftleverisin P (Park). So, besure the transfercase is in adrive gear-not in N (Neutral). I I If you are parking onahill, "Parking Hills" on "Towing or a or if you're pulling atrailer,alsosee Trailer" inIndex. the I 2-24