Bolt missing and a rattling from passenger side

[Ngkgb]

I’ve been hearing some rattling from the drivers side over the last week or so. Seemed to be coming from the suspension or maybe underneath the car. I looked under the truck today and there seems to be at least one bolt missing, maybe more. Looked at passenger side and the bolt was intact. I recently had my subframe replaced. Could they have forgotten to replace it? How else may it have fallen off?

I’ve attached pictures and a movie showing the sound.

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[FooF]

Service needs to start applying loctite or use new bolts that come with thread locker or applied.

 

[Killer95Stang]

Personally, I'd remove the one next to it to use as a reference. Then go to a store like autozone and get a replacement in the area where they have trim screws. Find something that will work to secure and then mention them for your next service if you can't find the exact screws. Making an appointment just for those screws will be more frustrating than anything. We were missing multiple trim screws after our suspension was serviced and then a few more screws after our R1S came back from the certified bodyshop. Seems like they forgotten a lot or they are lost when putting things back together.

 

[frannypack_704]

Personally, I'd remove the one next to it to use as a reference. Then go to a store like autozone and get a replacement in the area where they have trim screws. Find something that will work to secure and then mention them for your next service if you can't find the exact screws. Making an appointment just for those screws will be more frustrating than anything. We were missing multiple trim screws after our suspension was serviced and then a few more screws after our R1S came back from the certified bodyshop. Seems like they forgotten a lot or they are lost when putting things back together.

Unfortunately, this happens with every car I've ever owned including Acura, BMW and Tesla. Out of sight out of mind. Rivian does a poor job with that bolt. I know where this is because I removed it to install running boards. I think the washer is also undersized from the factory. I'd do what he said but also add larger washers to both.

 

[raylepper]

Yeah, I read another post that had some good (IMHO) advice. Raise the vehicle up to max. Crawl under with a flashlight. Check all the underbody trim bolts. If loose, remove, clean, apply blue loctite and replace. (If you're a nerd you can look up standard torque settings for that screw size and apply.) Then mark with paint pen. I'm going to do that as soon as it stops freakin' raining here.

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