2003 Chevrolet Impala Owner's Manual - Page 302

Noficer Ignoring these steps could result in costly damage to your vehicle that wouldn't be covered by your warranty. Trying to start your vehicle by pushing or pulling it won't work, and it could damage your vehicle. 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 accessory 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! 4. Open the hoods and locate the batteries. Find the positive (+) and negative (-) terminal locations on each vehicle. You will not need to access your battery for jump starting. Your vehicle has a remote positive (+) jump starting terminal for that purpose. The remote positive (+) terminal is located in the engine compartment on the passenger's side of the vehicle, next to the upper underhood fuse block. See Engine Compartment Overview on page 5-12 for more information on location. 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 NEU~IHAL betore setting the parking brake. 5-49