Something strange has been going on in some 2020 Hyundai Palisade SUVs. The automaker had received complaints from some owners that the interior of the vehicles had a bad smell. The offensive odor has been discovered in some 2020 and 2021 Palisades.

Publication Cars.com had a Palisade that had the smell problem, which spent six weeks at a dealership as part of the investigation into the issue.
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https://www.slashgear.com/hyundai-gets-to-the-bottom-of-the-stinky-smell-in-some-2020-palisade-suvs-14647282/