The Body Control Module may fail causing the power windows to stop working and other various electrical system faults.Google+
Car Problem Reports
Pontiac Aztek Power windows may not work due to faulty body control module
Pontiac Aztek Problem
Average Mileage: 134,000 mi (112,000 mi - 150,000 mi)
Visitor, 2001 Pontiac Aztek, 140,000 mi
BCM (Body Control Module) failed, causing ALL interior and exterior lights to turn on and off at random....also caused intermitant failure of power windows, power doorlocks, radio, rear hatch realease, gauges.
Visitor, 2001 Pontiac Aztek
Car died while parked outside while I was at work, replaced the battery then it started working fine, next day i realized windsheild wipers, power windows, and the a/c don't work. We've had random problems with this car since we got it, we've had it less than a year and already put a lot of money into its surprises. Don't have the money to replace the bcm. Just pissed at this dam car
Visitor, 2003 Pontiac Aztek, 112,000 mi
Same issue, all the power windows and sun roof stopped working at once.