1993 GMC Suburban Owner's Manual - Page 220

AN470054 If there is no curbwhenyou'reparkinguphill,turnthewheelstotheright. If there is no curbwhenyou'reparkinguphillontheleftsideofaone-way street,yourwheelsshouldbeturnedtotheleft. Torque Lock (Automatic Transmission) If youareparkingona hill and you don'tshiftyourtransmission into P (Park)properly,theweight of thevehiclemayputtoomuchforce on the parkingpawl in thetransmission. You may find it difficult to pull theshiftlever outof P (Park).This is called"torquelock." To preventtorquelock,always To find out besure to shift into B (Park)beforeyouleavethedriver'sseat. how, see"ShiftingInto P (Park)" in theIndex. When youareready to drive,movetheselectorlever BEFORE youreleasetheparkingbrake. out of P (Park) push If "torque lock'' doesoccur,youmayneedtohaveanothervehicle yoursalittleuphill to takesomeofthepressurefromthetransmission, you can pulltheshiftleverout of B (Park). so 4-52