running lights ok but no brake or turn signals

Check fuses in the tow vehicle. Trailering fuses are in the fuse box under the hood. There are separate fuses for running lights and brake/ turn lights.

Check owners manual for fuse location / number

Yup, with a truck that new you have likely blown a fuse.. I think there is one fuse for that, not a left and right fuse, but I have blown it before too. The real question is why did it blow, and that might take a lot more looking to figure out.

Plugging in truck and starting while trailer is plugged in to shore power will blow this fuse. Don't ask me how I know this.

irbf30 wrote:
Plugging in truck and starting while trailer is plugged in to shore power will blow this fuse. Don't ask me how I know this.

Hummm? I do it all the time.

nothing in the manual mentions the trailer brake or stop lights. The closest I see is Trailer Tow park lamps but those are working. I have lights when I turn on the lights just not brake or turn signal.

DSteiner51 wrote:

irbf30 wrote:
Plugging in truck and starting while trailer is plugged in to shore power will blow this fuse. Don't ask me how I know this.

Hummm? I do it all the time.

Thats probably what did it but I cannot locate the fuse. argh

DSteiner51 wrote:

irbf30 wrote:
Plugging in truck and starting while trailer is plugged in to shore power will blow this fuse. Don't ask me how I know this.

Hummm? I do it all the time.

X2. Are we expected to unplug trailers or campers every time we shut off our rigs and then restart ?
I have Never heard about that before. Seems horribly inconvenient.

I would check the plug. Some times they just need to get wiggled a bit. Or sometimes things come apart in them.
You can check the plug on the back of the truck with a test light for all functions and you will then know if it is a blown fuse or not.

Could be wiring for pin plugin.
Sometimes the wiring going to the plugin gets corroded, have to check the plugin for power and turn signals.

Farmerjon wrote:

DSteiner51 wrote:

irbf30 wrote:
Plugging in truck and starting while trailer is plugged in to shore power will blow this fuse. Don't ask me how I know this.

Hummm? I do it all the time.

X2. Are we expected to unplug trailers or campers every time we shut off our rigs and then restart ?
I have Never heard about that before. Seems horribly inconvenient.

"Shore power"; if you're plugged into the pedestal =and= your truck, then you start it up, you can blow fuses. I can only assume that if the pedestal breaker is OFF, this isn't likely to happen.

Lyle