2003 GMC Safari Owner's Manual - Page 265

I. Check the other vehicle. It must have a 12-volt battery with a negative ground system. Notice: If the other system isn't a 12-volt system with a negative ground, both vehicles can be damaged. 2. Get the vehicles close enough so the jumper cables can reach, but be sure the vehicles 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. To avoid the possibility o the vehicles rolling, set f the parking brake firmly on both vehicles involved in the jump start procedure. Put an automatic transmission in PARK (P) and a manual transmission in NEUTRAL. 3. Turn off the ignition on both vehicles. Unplug unnecessary accessories plugged into the cigarette lighter or accessory power outlets. Turn off all lamps that aren't needed as well as radios. This will avoid sparks and help save both batteries. In addition, it could save yourradio! 4. Open the hoods and locate the batteries. Find the positive (+) and negative (-) terminals on each battery. ra batterycancausebattery gas to explode. People have been hurt doing this, and some have been blinded. Use a flashlight if you need more light. Be sure the battery has enough water. You don't need to addwater to the ACDelco@ battery installed in your new vehicle. Butif a battery has fillercaps, be sure the right amount of fluid isthere. If it is low, add water to take care of that first. If you don't, explosive gas could be present. Battery fluid contains acid that can burn you. Don't get it on you. If you accidentally get it in your eyes or on your skin, flush the place with water and get medical help immediately. 1- - - - - J matcl a Notice: If you leave your radio on, it could be badly damaged. The repairs wouldn't be covered by your warranty. 5-48