I have a 2017 GMC 3/4 ton truck. Just purchased it. Old 2012 dd not have this problem. It brings in an intermitted alarm on dash that says check trailer wiring. The longest it has stayed on has been about 5 seconds. I have checked all connections...
Just got my second issue. It was just as bad as the first issue. All the articles I enjoyed reading are gone. I will not renew when subscription runs out