I took delivery of a 2006 Silverado 2 months ago. It is a 1/2 ton with the trailering option. I pulled a car trailer last week with no problems. On Thursday I hooked up to the trailer and went and got gas, all of the lights were working fine. Friday night my park lights wouldn't work on the trailer. I have blinkers and stop lamps.
I do not have power for the park lights coming out of the plug on the pickup. The park lights on the pickup do work.
Does anyone have any ideas? Is this covered under warranty? I would assume it is.

It may be fuses. On my '01 Tahoe all of the trailer light connections are fused in the panel under the hood. Look in your owner's manual to track them down and see if that is the cause.

I spoke with another board member today, and he gave me the same answer. I will take a look at it tomorrow.

Was it a fuse?

Yeppers, the funny thing is that when we were diagnosing it Friday night we talked about how you always check the simple things first. Of course I never would have guessed that there would be a seperate fuse for trailer park lamps.

I thought the same thing.