The gray padding and the plastic underneath just pulls off. It is most likely glued on and does not come off nicely so it may rip in places, but you will be able to pull it off.
That will give access to the interior of the door where the glass is and the channel it rides on. More than likely it is off the entire front track so I would not recommend forcing it.
Once you get it back on the track it will go smoothly.
However, to replace this you need to replace the entire door seal.
It is not just the triangle part; it is the rubber part that goes down the entire front of the door.
See the details below. The strip will just pull off and there are going to be plastic clips underneath that hold it in place.
Lastly, there is a longer part that feeds down into the window opening that connects to the rest of the window channel inside the door. This is the last picture with the blue arrow showing where it goes down into the door.
I would start at the bottom of the door and start pulling it up from there and that will show you how it comes off. Otherwise wait until you get the replacement so that you can see the underside.
It is not complicated once you see how it goes but it is not obvious.
You are going to access the long piece off the triangle from inside the door panel which is why you have to remove the padding.
Let me know if you have questions. Unfortunately, the manual does not have a process for doing this.
Images (Click to enlarge)
Sunday, June 5th, 2022 AT 4:21 PM