1994 GMC Jimmy Owner's Manual - Page 206

2. Get the vehicles close enoughso the jumper cables can reach, but be sure the vehicles aren't touching other. If they are, it could causea each ground connectionyou don't want. You wouldn't be able to start your vehicle, and the bad grounding could damage the electrical systems. You could be injured the vehicles roll. Set the parking brake firmly if "P,' on each vehicle. Put an automatic transmission in (Park) or a (Neutral). If you have a four-wheel-drive manual transmission in vehicle witha manual transfer case shift lever, be sure the transfer case is not in (Neutral). " N 7 " N 7 3. Turn off the ignition on both vehicles. Turnoff all lights that aren't needed, and radios. This will avoid sparks and help save both batteries. And it could save your radio! NOTICE: If you leave your radio on, it could be badly damaged. The repairs wouldn't be covered by your warranty. 4. Open the hoods and locate the batteries. Find the positive and (+) negative (-) terminals on each battery. 5. Check thatthe jumper cables don't have loose missing insulation.If or they do, you could get shock. The vehicles could be damaged, too. a Before you connect the cables, here some basic things you should are know. Positive (+) will go to positive (+) and negative (-) will go to 5-4