Ford is definitely pushing updates out for sure right now. My early build 21 suffered from the hangup at 1.7. Took it in last August. and the dealership was able to fix it without replacing anything (did take them several days though). Immediately got a 2.4 update in Sept., then some sort of...
Jesse confirmed that plug is for the rear heated seats, post #14 in this thread:
https://www.f150gen14.com/forum/threads/adding-factory-rear-heated-seats-to-22-lariat.11131/
Just wanted to post a few pics after a couple hours worth of work. Installed a Moto Fab 2" level kit this morning. Took advantage of a great sale earlier this week from Brink. 20x9 +18mm offset B202 Insurgent wheels in Royal Bronze. For tires, 295/60 Atturo Trail Blade XT's.
Isn't 80mph close to only 2,000RPM +/- 200 in 10th gear??? How is this hard on the engine? I'm getting over 24mpg at that speed so it is definitely not loading the engine down.