How do you change a allternator on a 2003pontiac vibe?

To change the alternator on a 2003 Pontiac Vibe, first disconnect the negative battery cable to ensure safety. Remove the serpentine belt by loosening the tensioner, then unbolt the alternator from its mount. Disconnect the electrical connectors from the alternator, install the new alternator by reversing the process, and finally, reattach the serpentine belt and reconnect the battery. Always consult the vehicle’s service manual for specific instructions and torque specifications.