1994 Chevrolet Suburban Owner's Manual - Page 207

Tu Jump Start Your Vehicle; 1. Check the other vehicle. It must have a 12-volt battery witha negative ground system. I I NOTICE: If the other system isn't a 12-volt system with a negative ground, both vehicles can be damaged. If you have a diesel engine vehicle with two batteries(or more), you should know before you begin that, especially in cold weather, you may not be able to get enough power from a single battery in another vehicle to start your diesel engine. If your vehicle has more thanone battery, use the battery that'son the passenger side of the vehicle - this will reduce electricalresistance. 2. Get the vehicles close enough so the jumper cables can reach, but be sure the vehicle's aren't touching each other. If they are, it could cause a ground connection you 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 ifthe vehicles roll. Set the parking brake firmly on each vehicle. Put an automatic transmission in "P' (Park) or a manual transmission in " N ' (Neutral). If you have a four-wheel-drive vehicle, be sure the transfer case isnot in "N" (Neutral). 3. Turn off the ignition on both vehicles. T u r n off all lights that aren't needed, and radios. This will avoid sparks and helpsave both batteries. And it could save your radio! NOTICE: If you leave your radio on, it could be badly damaged. The repairs wouldn'tbe covered by your warranty. 4. Open the hoods and locate the batteries. Find the positive (+) and negative (-) terminals on each battery. 5-4