When I start out driving there is a noticeable shake in the van for about 3-5 miles then goes away. After a stop and go somewhere the problem has disappeared entirely. Have replaced all the brakes including calipers thinking it was a stuck caliper, and have just installed new tires so that wouldn't be the issue.
My battery had a low voltage. Even though the battery would start the car, it was only at 11 volts. When I charged the battery fully, the problem went away.
I’m having the same issue. Chat gpt is telling me all this shit about the tpim being a chip relay on the motherboard and that it’s needs to be rewired and all kinds of stuff. I don’t believe it is right this time. While it is right, the most common issue on these is the tpim, I firmly believe it is just a replaceable relay, labeled starter solenoid on the -in engine bay- fuse panel next to the battery. I will be delving deeper into this problem between now and Monday the 24th of November. I will comment my findings here. If you have already fixed yours please let me know what your issue was, I’m curious if it’s the same problem. I have the 2011 3.6L