How do you replace the alternator on a 2006 Pontiac vibe?

To replace the alternator on a 2006 Pontiac Vibe, first, disconnect the negative battery cable for safety. Remove the serpentine belt by loosening the tensioner, then unbolt the alternator from its bracket. Disconnect the electrical connectors and wiring from the alternator, and then remove the old alternator. Install the new alternator by reversing the removal process, ensuring all bolts and connections are secure before reattaching the battery cable.