Question about 2004 GMC Envoy

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2005 GMC Envoy trailer lights

When I hook a trailer (that works with my other vehicle) to my 2005 GMC Envoy, the lights don't work if I have the Envoy lights on. If the lights are on for the Envoy, then the lights don't work on the trailer.

Posted by Patty Dusseau on

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davegrd453

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  • 236 Answers

Check the white ground wire on the plug on the vehicle.

Posted on Aug 23, 2012

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