2002 Pontiac Grand Prix Owner's Manual - Page 228

NOTICE: If the other system isn't a 12-volt system with a negative ground, both vehicles can be damaged. 1. Check the other vehicle. It must have a 12-volt battery with a negative ground system. 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 of the vehicles rolling, set the parking brake firmly on both vehicles involved in the jump start procedure. Put an automatic transaxle in PARK (P) or a manual transaxle in NEUTRAL before setting the parking brake. NOTICE: If you leave your radio on, it could be badly damaged. The repairs wouldn't be covered by your warranty. 3. Turn off the ignition on both vehicles. Unplug unnecessary accessories plugged into the cigarette lighter or in the accessary power outlets. Turn off the radio and all lamps that aren't needed. This will avoid sparks and help save both batteries. And it could save your radio! 5-4