Acadia Leaking
During a long rain storm, my wife's Acadia started leaking. Seemed like it could have been a door seal or an issue with the sun/moon roof. Anyway, it was neither. On the roof of the Acadia are two plastic strips that run lengthwise - front to back. If you pop the strip up, you can see a seam in the roof metal. In our case, that seam was not sealed properly on the passenger side. Between the front right corner of the moon roof, and the front right corner of the windshield roughly. Anyway, I applied a bead of a quality grade of windshield sealant on the metal seam, and pushed the strip back in place. Being careful to not apply too much - to prevent a mess. Have had lots of rain since, and no leaks. To determine where the leak was, required two people. One person outside with a hose, and one inside the Acadia with a flashlight. It is necessary to pull the Acadia headliner back on that corner - to see the area in question.