2007 Chevrolet Aveo Owner's Manual - Page 305

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 or other accessories on during the jump starting procedure, they could be damaged. The repairs would not be covered by your warranty. Always turn off your radio and other accessories when jump starting your vehicle. 3. Turn off the ignition on both vehicles. Unplug unnecessary accessories plugged into the cigarette lighter or the accessory power outlet. 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 hoods and locate the batteries. Find the positive (+) and negative (−) terminal locations on each vehicle. Your vehicle's positive (+) terminal is located under a red tethered cap on the battery. See Engine Compartment Overview on page 276 for more information on location. Flip the cap up to access the positive (+) terminal. {CAUTION: An electric fan can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan. 305