“Action Required - Open Then Close Driver Window”

Bethd91 · March 15

On 8/2/2020 at 5:17 PM, carnau said:

Ok, So part of this is exactly the problem. It's just very general which doesn't help you and that's no fault to @rusty503. He is exactly right.

I have run into this many of times on these vehicles since i am the electrical specialist at our dealership . Unfortunately I can't see the vehicle to test it so I am not going to say it is not a body control module failure. Because it absolutely could be. Do I think it is? No. But again I can't test it personally so I will not say they are definitely wrong. I will explain to you though why I believe it is wrong and what I think you should look for in case the BCM does not fix it. And please, If the BCM fixes it let us know. I really enjoy these types of problems and am interested.

The BCM uses voltage to keep it's memory (this is why it could be a bad BCM) When it falls below a certain voltage the Capacitors in the BCM discharge and this sends it into a relearn mode (telling you to roll the windows up and down, ect..) This is why I don't think the BCM is the problem.

I believe you have a voltage drop problem on one of your battery cables. This is actually an easy test and don't take long. Do a loaded voltage drop test across your battery cables. You need less than 0.1 volt across all of them even though 0.2 volts is acceptable.

If your voltage drop is higher on any of those cables or across the battery block (which is where I normally find the problem. Either a lug that's barely loose or a crack in the plate) replace it. The reason it's coming up with this is because during cranking the voltage drop is higher than normal. If you have (let's say) 2 volts of drop during cranking that means on a perfect battery your BCM would be seeing 10.8 volts and discharge the capacitors causing your vehicle to go into relearn mode.

Here is the catch. Your vehicle isn't doing it every day (which makes me think it is the battery block again..loose lug or crack) so you will not see the full drop. But anything higher than 0.20 needs to be replaced. This will fix your problem IF the BCM doens't fix it. Because again... I can't test the BCM myself. I just have my doubts about it... But it is possible.

If you need me to explain anything else, how to do the test or ect... Just quote me and ask so I get the message on my phone. If not i check here every few days. The Ad's are killing me and I don't really like to come here much anymore.

Heyy heyyy so this happens to my 2018 gmc sierra also while I’m driving it will lose power and like do a jerk stop then gain power again! Haven’t taken it to the shop just wanted to see what it could be first lol

thank you so much in advance

ClicksNGlitches · October 10

On 11/2/2020 at 2:56 PM, steve76t said:

Sorry, it's been a little while since I've gotten back to this thread, but my issues continue at this time. The new BCM did not fix my issues. Been to the dealership a few times since for them to continue to guess what's going on. Last time was last week. They told me the GM asked them to check a relay or connection in the passenger side door. However, after I got the truck back that's not what the service tech wrote in his description of work completed. Looks like he just "Cleared and Relearned Window Stop in BCM", checked all grounds under hood, and "load tested battery at 360 amps for 15 seconds. Passed at 10.4 volts".

Picked up my truck on Wednesday, ended up with the window message on my dash Friday AM & again Sunday afternoon. I'm trying to get ahold of my service rep again, he's a pain to get ahold of, and will give him a copy of your response to this. Lets see if it gets me anywhere...

Pull your Passenger compartment fuse panel cover. use a meter and test each meter (in place) and make sure all 3 connectors are firmly connected.

I just got this problem and thats how I found this thread on my 2021 Sierra. I had recently removed the passenger side fuse block (all clip and snap, takes about a minute and a haklf to completely remove it from truck) I followed the Camaro trick and "reset" the learn computer and problem is gone.

I removed and reattached all three fuse box plugs, then I opened the driver door, rolled window down and held button for 3 extra seconds. I rolled window up, turned truck off, then closed door and restarted. this fixed error for me. Hope it helps.

CAB · October 23

We have a GMC Yukon and was just having this same problem. My husband called the GMC mechanic and he said to get in start up and when you use the button to let the window down hold the button down for a few seconds after the window is down and then press the button to let the window back up and again hold the button up for a few seconds afterwards. That worked for us. You guys should give it a try.

Edited October 23 by CAB

steve76t · October 24

9 hours ago, CAB said:

We have a GMC Yukon and was just having this same problem. My husband called the GMC mechanic and he said to get in start up and when you use the button to let the window down hold the button down for a few seconds after the window is down and then press the button to let the window back up and again hold the button up for a few seconds afterwards. That worked for us. You guys should give it a try.

That’s the way to clear the code if there’s been a change in battery. However, there are other causes that this won’t fix.

steve76t · October 24

For the record, this has come up again on my 2017. This time however there’s a broken wire in my drivers side door wiring harness and a few other wires that are cracked. I’ve got a new wire harness on order that should be here within the next few days.