1993 GMC Suburban Owner's Manual - Page 236

groundconnectionyoudon'twant. You wouldn'tbeabletostartyour vehicle,andthebadgroundingcoulddamagetheelectricalsystems. You couldbeinjured if thevehiclesroll.Settheparkingbrakefirmly oneachvehicle.Putanautomatictransmission in P (Park)ora manualtransmission in N (Neutral). If you have a four-wheel-drive vehicle, be sure the transfer case 3. Turn off theignitiononbothvehicles.Turn off all lightsthataren't needed,andradios.This will avoidsparksandhelpsavebothbatteries. And it couldsaveyourradio! is 4. Openthehoodsandlocatethebatteries. Findthepositive (t) andnegative (-) terminalsoneachbattery. Usingamatchnearabatterycancausebatterygas to explode. Peoplehavebeenhurtdoingthis,andsomehavebeenblinded.Use aflashlight if youneedmorelight. Besurethebatterieshaveenoughwater.Youdon'tneedtoadd watertotheDelcoFreedom@batteryinstalled in everynew GM vehicle.But if abatteryhasfillercaps,be sure therightamountof If you fluid is there. If it is low, addwatertotakecareofthatfirst. don't,explosivegascouldbepresent. 5. Checkthatthejumpercablesdon'thavelooseormissinginsulation. they do, youcouldgetashock.Thevehiclescouldbedamaged, If too, Beforeyouconnectthecables,herearesomethings Positive (t)will gotopositive (t) andnegative (-) you shouldknow. will go tonegative 5-4