OMg what Rudy said I have a 530i 04 same with rear left window. Try everything and ddnt work but follow exactly rudy instruction, here's what I did
1. Turn on the car
2. Go to idrive and open the anti trap error message
3. Reaching back from the drive seat and roll the window all the way down... Release... Then imediately hold the up position for 17 seconds.(this is the most important part, 17 secs exact!!!) immediately hold it up again...
4. The window now goes all the way up while holding.. Continue to hold until the window open and close again.. Once after this cycle u r set.

I hope other people can get this fix also. It's the most annoying thing in the world lol

 

This works; Had the same exact issue and I tried the steps above and the problem is gone

 

hi.. i have a 04 545i... my frnt pass window wasnt rolling up. & the anti trap light came on... i tried this procedure n now window is not working.. anybody know wuts wrong?? need help..
thnx

 

I accidentally double click up passenger side window and got the annoying "anti trap" message. Followed the instruction here to reset and it worked fine now. I did it from the driver side switches cluster with the key in 1st (radio on) position.

 

did you perform this reset procedure from the R passenger front door or the controls on the drivers door?

 

Hello everyone.
I have 2008 528i with the power window anti-trap function on my rear left door and I have already tried different ways holding it different amount of seconds but not luck at all.
Does any of you know if the steps posted are only for older models?.
Help please.

 

I just did this just now and it worked GREAT, immediate fix and i have an 04' so to answer your question, yes.

 

It worked like a charm! Incredible. I really didn't believe it at first but with the engine on and holding down for 17 sec. exactly and then pulling back up on the window worked...woohoo!!!

I have a 2007 530i and it worked perfectly. Remember do it from the affected window with the engine on and hold down window open for 17 sec and then pull up the window and hold it until the window rolls all the way back up and then down and then up. Then it stops and you can let go of the button. Try it. It really works!

 

the steps worked for my 2008 535i as well...AFAIK, works for all model years...

 

Doug and Rudy, you guys are awesome, I had that happen on my car about a month ago and kept trying to reinitialize it using instructions found here and from my Bentley manual all to no avail. Then I read about the 17 seconds and timed it perfectly and got it to reinitialize. The trick is definitely right at 17 seconds as I was holding on to it for 30 seconds or more trying to make sure I got it long enough but turned out it was too long.