The Cobalt, G5, and ION vehicles let you unbolt and guide the alternator out from the engine without much effort, yet you may need extra space to get it done correctly. Start your procedure by untwisting the battery's negative lead cable. Remove both the air filter housing and intake tube if they block any way to get to the alternator. Lift your vehicle properly using jackstands, loosen the nuts on the right front wheel, remove that wheel, and take off the right front fenderwell splash shielding. Disengage the access belt drive, and on 2007 and older 2.0L models, remove the supercharger to reach the alternator. Remove the terminal nuts and take off the electrical cables from the alternator. Keep track of where all connections are placed when reconnecting everything later. Take off the eyelet bracket secured to the engine hoist above the alternator, if you need more space. Taking care, remove and disconnect the bolts holding the alternator in place, and ease it down through the top of the engine space. If your space will not allow you to take out the engine support and mount, move the windshield washer reservoir, put a floor jack under the oil pan, and detach the right-side engine mount to give you room to work. Turning the alternator back into place involves tightening its mounting bolt and all other fasteners during this step. The PCM needs to update itself after disconnecting the battery so it recovers its original driveability and performance settings.