Why did the heater fan quit working on your Pontiac Vibe?

The heater fan in a Pontiac Vibe may stop working due to a few common issues, such as a blown fuse, a faulty blower motor, or a malfunctioning blower motor resistor. It could also be caused by a bad connection in the wiring or a problem with the climate control switch. Checking these components can help pinpoint the cause of the failure. If the problem persists, consulting a mechanic may be necessary for a thorough diagnosis.