If your hatch rattles over sharp bumps...

...try this. It's a closed cell foam tape, similar to what's used to provide a moisture barrier between a camper shell and truck bed. I did a quick hack job just to see if it would kill the rattle, and it did. Since it works, I'll cut something a little cleaner to fit better in the hole.

 

I haven't had time to have the dealership try to adjust it...I have some very long days, with the 230 mile round-trip commute plus 8-9 hours at work, 5 days a week. It's going in to the dealer Friday (I took the day off), but even with that, I don't have time...as soon as it's done with the 10K service, we are heading out of town for the weekend. Having them look at it would mean they'd have to drive it to duplicate it, then pull panels off, adjust, test, adjust, test, etc. I could see it turning a quick oil & filter change and tire rotation into a a 4-6 hour dealer visit. No time for that at this point.

Because it's a metallic-sounding rattle, I think the latch is a little out of adjustment. Haven't had the time to pull the interior hatch panels off to see if there is a simple adjusting screw or something under the covers. I may get to it...I may have the dealer adjust it at some point...or I may not get around to it, and let the foam tape do the job, because it was literally about 3 minutes to cut it and stick it in there, and it works.

 

I thought of that. When I first got the car it had a metal dealer license plate frame. That was the first thing to go. It's definitely the hatch, almost certainly the latch. Putting those little bits of foam tape in there killed the rattle.