It doesn't say anything about "completing" the trail, but this is straight from Jeep's website:
TRAIL RATED - MADE TO OVERCOME
Before a JeepĀ® 4x4 is worthy of our name, we test it on some of the toughest off-road areas in the world, including Moab and the Rubicon Trail. If it passes these tests, in five categories - traction, ground clearance, maneuverability, articulation, and water fording - it gets a Trail RatedĀ® badge, which means it can handle whatever obstacles you encounter.
I'd like to know what the standards are for those categories