User manual GMC SONOMA 1993

[. . . ] 9 9 3 LIIONO~ Owner's Manual di THE STRENGTH OF EXPERIENCE, INTRODUCTION 1993 GMC Sonoma Owner's Manual Welcome Thismanualwasprepared to acquaintyouwith the operation and maintenance of your 1993 GMCSonomaand to provideimportantsafety information. ThereisalsoaGMCTruckWarrantyandOwnerAssistance Informationbooklet. In some vehicles, therecanbeinformationmanualsfrom othermanufacturerslikebodybuildersorspecialequipmentcompanies. We urgeyou to reviewallthesepublicationscarefully. Thiswillhelpyouenjoy safe and trouble-free operation of your vehicle. When it comes to service, keep in mindthatyourGMCTruckdealerknows yourvehiclebest and is interestedinyourcompletesatisfaction. [. . . ] And, it can also depend onanyspecialequipment that youhaveonyourvehicle. You can askyourdealerforourtraileringinformation or advice, or you can write usat theaddresslisted in yourWarrantyandOwnerAssistanceInformation Booklet. InCanada, writeto: GeneralMotors ofCanada, Limited Customer Assistance Center 1908 ColonelSamDrive Oshawa, Ontario L1H 8P7 Weight of the Trailer Tongue The tongueload(A) of anytrailerisanimportantweightto measure because it affects the total or gross weight of yourvehicle. The gross vehicle weight (GVW)includesthecurbweight of the vehicle, anycargoyoumaycarry in it, and thepeoplewhowillberiding in thevehicle. And if you towatrailer, you must add thetongue load totheGVWbecauseyourvehiclewillbecarrying thatweight, too. See"LoadingYourVehicle'' in theIndex for moreinformation aboutyourvehicle'smaximum load capacity, A B AN490002 Ifyou'reusinga"dead-weight"hitch, of the total loaded trailerweight(B). the trailertongue(A)shouldweigh10% If youhavea"weight-distributing"hitch, 4-57 Your Driving and the Road the trailertongue (A) shouldweigh 12% of the total loadedtrailerweight Afteryou'veloadedyourtrailer, weighthetrailerandthenthetongue, separately, tosee if theweightsareproper. If theyaren't, youmaybeable to getthemrightsimplybymovingsomeitemsaround in thetrailer. (B). Total Weight on Your Vehicle'sTires Be sureyourvehicle'stiresareinflatedtothelimitforcoldtires. You'llfind thesenumbersontheCertificationLabelonthedriver'sdoorlockpillar(or see"Tire-Loading" in theIndex). Thenbesureyoudon'tgooverthe limit for your vehicle. GVW Hitches It'simportanttohavethecorrecthitchequipment. Crosswinds, largetrucks goingby, androughroadsareafewreasonswhyyou'llneedtherighthitch. Herearesomerules to follow: If you'llbepullingatrailerthat, whenloaded, willweighmorethan 2, 000 pounds (900 kg)besure to useaproperly mounted weight-distributing hitchandswaycontrolofthepropersize. Thisequipment is very importantforpropervehicleloadingand good handlingwhenyou're driving. You can towtrailersupto 2, 000 pounds (900 kg) withastepbumperhitch, but if yourtrailertongue has aV-shapedfoot, yourbumpercouldbe damaged in sharpturns. Checkthedistancefromthefrontedge of the foot to themiddle of thehitchballsocket. If thedistanceislessthan 12 inches, take the foot off the trailer tongue. 4-58 Safety Chains You should always attach chains betweenyour vehicle andyourtrailer. Cross the safety chains under the tongue of thetrailer so that the tonguewillnot drop to the road if itbecomes separated fromthehitch. Instructions about safetychainsmay be provided by the hitch manufacturerorby the trailer manufacturer. Follow the manufacturer's recommendationfor attaching safety chains. Always leave just enoughslack so youcanturnwithyourrig. And, neverallowsafety chains to drag on the ground. Trailer Brakes If yourtrailerweighsmore than 1, 000 pounds (450 kg) loaded, then it needs itsownbrakes-and they must be adequate. Be sure to read andfollowthe instructions for the trailerbrakes to install, adjust andmaintainthemproperly. And: Don't tap into yourvehicle's brake system if the trailer's brakesystem willusemore than 0. 02 cubicinch ( 0 . 3 ~ of ) fluid fromyourvehicle's ~ mastercylinder. If it does, both braking systemswon'tworkwell. Will the trailerbrake parts take 3, 000 psi (20 650kPa) of pressure?If not, the trailerbrakesystemmustnotbeusedwithyour vehicle. If everything checksout this far, then make the brake fluid tap at the porton the master cylinder that sends fluid to the rear brakes. Butdon't usecopper tubing for this. If you do, it will bendandfinallybreak off. Usesteel brake tubing. Driving with a Trailer Towinga trailer requiresa certain amount of experience. Before setting out for the open road, you'll want to get to knowyourrig. Acquaintyourselfwith the feel of handling and braking with the addedweight of the trailer. And alwayskeepinmind that the vehicle youaredriving is nowagood deal longerand not nearly so responsiveasyour vehicle is byitself. Beforeyoustart, checkthetrailerhitchandplatform, safetychains, electrical connector, lights, tiresandmirroradjustment. If thetrailerhaselectricbrakes, startyourvehicleandtrailermovingandthenapplythetrailerbrakecontroller byhandtobesurethebrakesareworking. Thisletsyoucheckyourelectrical connectionatthesametime. During yourtrip, checkoccasionally to be sure that the loadissecure, and that the lights and any trailerbrakesare still working. 4-59 Your Driving and the Road Following Distance Stayatleasttwiceasfarbehindthevehicle ahead asyouwouldwhen drivingyourvehiclewithoutatrailer. Thiscanhelpyouavoidsituationsthat requireheavybrakingandsuddenturns. [. . . ] 0-3 Identification Number . . . . . . . . . . . . . . 6-57 Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23, 6-38 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31 Symbok . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0-4 Ventilation System . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]