Hello All - I have a 2014 Verano 2.4L with less than 50K miles. I started having a problem with both passenger side windows (front and rear) not working. I got the "open passenger window, then close" message. Of course, I couldn't open the window because it would not work. The passenger side taillights (both) are also not working, including brake light and turn signal. Sometimes you can try to open the rear passenger window from the driver'* control and you can hear clicking, other times nothing. After a few starts the problem stopped. Then a day later the problem is back and has not gone away. In addition, the interior light will stay on for several minutes after the car has started but not at full brightness. The door lock button also does not work on the passenger door switch. There is also an intermittent failure for the door handle push buttons working to lock or unlock the doors, which happens with the buttons on all four doors. I also have gotten a message that a door is not closed while driving.

I replaced the battery yesterday as it was the original and was reading a little low on voltage. That did not help. I checked all the fuses pertaining to the windows, lights, and BCM. I also double checked that the BCM cables where secure in the BCM connection block. I then went to a local shop with an advanced scanner and I had all kinds of BCM codes. It sounds as if my BCM is bad with all the codes being thrown. Below are the codes:

B1325 - Control module power circuit below threshold
U0140 - Lost communication with BCM
B3210 - Passenger window motor internal electronic failure
B3210 - Passenger window motor calibration not learned
B3951 - Right Rear Turn signal open circuit
U1530 - Lost communication with front window on LIN Bus
U154A - Lost communication with rear window on Lin Bus
U0168 - Lost communication with keyless entry control module

Could there be anything besides the BCM that would cause all these failures and codes?

Thanks

The lost communication codes could be from the battery going dead. try unhooking the battery for 30 minutes, if you didn't do it when you changed it out.
the B3210 code is for the right front window circuit. you could have a bad window motor or a short circuit and that could be draining your battery. just a guess.

. . . or maybe a bad wire or ground.

It also might be worthwhile to see if there are any broken wires in the door boots.

The lost comm codes are in accordance with your story and the windows and not from changing out the battery.
Did they look at the BCM data when they had the scan tool hooked up? You can watch the switches being activated and how the BCM responds. This is quick and will help diagnose the problem.

The dealer found a loose ground wire up under the passenger kick panel. It wasn't a frayed wire. A screw holding a ground lug was loose. Tightened it up and the problem is fixed. Took them less than one hour. I didn't get to speak to the mechanic but from the info given by the service advisor, it sounded like their analyzer helped them narrow down the location of the bad ground.

That'* great news!

Thanks for letting us know how it turned out!