1993 GMC Sonoma Owner's Manual - Page 216
1993 GMC Sonoma Manual
Page 216 highlights
Your Driving and the Road 2. Let uponthebrakepedal. 3. Driveslowly until thetrailer is clear of thechocks. 4. Stopandhavesomeonepickupandstorethechocks. Maintenance When Trailer Towing Your vehiclewillneedservicemoreoftenwhenyou'repullingatrailer.See theMaintenanceScheduleformoreonthis.Thingsthatareespecially importantintraileroperationareautomatictransmissionfluid(don'toverfill), engineoil,axlelubricant,belt,coolingsystem, and brakeadjustment.Each theseiscoveredinthismanual,andtheIndexwillhelpyou find them quickly.Ifyou'retrailering,it'sagoodidea to reviewthesesectionsbefore you start your trip. Checkperiodically to seethatallhitchnutsandboltsaretight. of Trailer Light Wiring See"TrailerWiringHarness" in theIndex. it whenyour Power Winches If you wish to useapowerwinchonyourvehicle,onlyuse vehicleisstationaryoranchored. IW m w - en operating a power winch on your vehicle always leave thc ansmission in theneutralposition. Do notleave an automatic ansmission in P (Park)oramanualtransmission in gearor tht nsmissionmay be damaged. Usetheregularbrakes,settheparkingbrakeorblockthewheels yourvehiclefromrolling. I to keep 4-62