2009 Buick LaCrosse Owner's Manual - Page 312

Notice: If you leave the radio or other accessories on during the jump starting procedure, they could be damaged. The repairs would not be covered by the warranty. Always turn off the radio and other accessories when jump starting the vehicle. 3. Turn off the ignition on both vehicles. Unplug unnecessary accessories plugged into the cigarette lighter or the accessory power outlets. Turn off the radio and all lamps that are not needed. This will avoid sparks and help save both batteries. And it could save the radio! 4. Open the hood on the other vehicle and locate the positive (+) and negative (−) terminal locations on that vehicle. You will not use your vehicle's battery for jump starting. It has a remote positive (+) jump starting terminal, located on the underhood fuse block, for that purpose. See Engine Compartment Overview on page 5-12 for more information on location. 3.8L V6 Engine If your vehicle has a V6 engine, to uncover the remote positive (+) terminal, press the tab at the bottom of the fuse block and lift the cover up. Always use the remote positive (+) terminal instead of the positive (+) terminal on the battery. 5-42