Disconnecting the Trailer Connection when staying Overnight.

[Canuck_Travelle]

Hi everyone, I have a question for you.

We have a Kodiak Travel Trailer and it has Dual Batteries in it, it is towed with a 2017 Silverado 1500.
I always disconnect the trailer's electrical cable when staying overnight at an un-serviced location like a Flying "J", Wal-Mart, etc.,and as a point to jog my memory put a card around the steering wheel so an old feller like myself can remember to plug in.

Question,do I have to do that or does the newer Trucks remember with software or hardware to not allow the truck battery to be siphoned off through the Trailer Connection?

Maybe I should try General Motors but thinking there is more expertise here concerning Trailer Connections, the new truck is really a large computer, quite awesome in some things but no mention that I can find with respect to this subject.

Appreciate any help or comments anyone might have.

[GordonThree]

Three years of road trips with overnights in parking lots... never have disconnected, never will. Even spending multiple days at a boondock site, if I don't unhitch the truck, I won't disconnect the Bargman.

[ktmrfs]

GM varies. The 6.6 diesels do NOT disconnect power. Gassers vary, I don't recall what my manual said exactly but I believe vary based on if you have the dual battery option or not.

[Community Alumni]

My 2014 Ram does not pass thru power when the truck ignition is off. Having said that, I always pull the cable out anyway when we stop overnight.

[SoundGuy]

Canuck Travellers wrote:
Appreciate any help or comments anyone might have.

Why guess? Put a voltmeter between Pin 4 (1 o'clock position) and Pin 1 (7 o'clock position) of your truck's Bargman connector then you'll know.

[Chuck_thehammer]

I know Ford does not pass power to trailer when truck is OFF.. but opening the doors of truck will also turn on trailer lights.

I unplug every time...

as a test .. I always do a parking light test walk around just before pulling out. and do a trailer brake test after 5 feet of moving truck/trailer.

but that's me.