1999 GMC Sierra 1500 Pickup Owner's Manual - Page 246

Pmbkms on the Road notbeabletogetenoughpowerfromasinglebattery to start your diesel engine. in anothervehicle If yourvehiclehasmorethanonebattery,usethebatterythat'sclosest to the starter-thiswillreduceelectricalresistance. 2. Getthevehiclescloseenough so thejumpercablescanreach, but be If theyare, it couldcausea surethevehiclesaren'ttouchingeachother. to startyour groundconnectionyoudon'twant.Youwouldn'tbeable vehicle,andthebadgroundingcoulddamagetheelectricalsystems. 1 You couldbeinjured if thevehiclesroll.Settheparkingbrakefirmly oneachvehicle.Putanautomatictransmission in P (Park)ora manualtransmission in N (Neutral). Ifyouhaveafour-wheel-drivevehicle,besurethetransfercase not in N (Neutral). is 3. Turn off theignitiononbothvehicles. Turn off alllightsthataren'tneeded,andradios.Thiswillavoidsparksandhelpsavebothbatteries.And it couldsaveyourradio! ou leaveyourradioon, it could bebadlydamaged.Therepairs r.,Jldn't becoveredbyyourwarranty. 4. Openthehoodsandlocatethebatteries. I Findthepositive (t)andnegative (-) terminals oneachbattery. 5-4