[Blasirl]

Condition

On certain 2016-2017 model year Chevrolet Cruze vehicles, the center high mount stop lamp (CHMSL) fasteners may back off over time and cause a water leak, allowing water to flow into the rear compartment battery tub. When the battery tub fills with water to a height of 50mm or more, the DC/DC converter module board and connector are exposed to water which may cause corrosion. If water drains below the DC/DC converter, a resistive short may occur on the printed circuit board which could result in an unattended fire when the DC/DC converter is powered.

Correction

Dealers are to inspect for water damage in the battery tub electrical components, and replace the CHSML gaskets and nuts (adding Loctite to the nut).

 

[Blasirl]

When was the last time you opened your trunk prior to finding the mold? I would at least go to the dealer to document it.

 

[Blasirl]

I have a 2018 premier RS sedan, I had water coming down in that same spot and pooling in the spare tire well. It seems that dealerships are hit and miss with repairing these leaks, so I fixed it myself. Mine was leaking at the far left and right of the spoiler. There is a plastic pin on the spoiler that snaps down into the trunk lid on both sides. That is where mine was leaking. I removed the spoiler put sealant around those pins and all the studs, remounted the spoiler, and the leak is gone. I would keep a eye out for more water in your trunk, I had to remove the light housings out of the trunk lid to access the spoiler studs and nuts. I don't see how those light housing gaskets would just start leaking. Good luck!

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