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A smaller version of GM's rebirth of the Hummer.

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Park lights won’t turn off

Park lights stay on after vehicle is turned off

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1 Answer

Most Helpful Answer

@harv177 common issue on the H3 is a short in the trailer wiring touching the chassis and causing issues. Open the tailgate and carefully inspect the wiring harness. Pull the Trailer B+ fuse and see if that turns the lights off. If it does you know it is a short in that wiring. If it does not, check the light switch with a multimeter.

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