Taken from toaster jeep forum:
"The only issue I can see people running into is the rear wheel alignment.
This Jeep Renegade is a new vehicle, the mechanics trying to align your jeep may have never seen this vehicle before. It's understandable that they don't know the adjustment points. So, make sure to tell the mechanic (not the sales person, the Mechanic) that both trailing arms are adjustable. The rear trailing arm is obvious, it's a camber bolt. The mechanics see this and take a quick look at the forward trailing arm and say 'there's only one adjustment point and it's maxed out'. Wrong! The forward trailing arm is a slide, the large washer covers the fact. At a quick look it's easy to miss. Tell the mechanic that both trailing arms are adjustable and (if the mechanic is worth his/hers paycheck) you will have no problems."
The arm to the front of the rear axle, however, appears to just be a normal bolt. Your'e mechanic might not realize it's adjustable (my Jeep dealer missed it) But it is, the hole it goes thru isn't a hole but an oval. The square washer hides this fact. When you loosen the bolt you can slide the arm's pivot point in and out. Between the two arms you can adjust toe and camber, and get them into spec ."