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Old 05-13-2019, 04:36 PM   #1
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Newmar Owners Club
Spartan Chassis
Join Date: Dec 2015
Location: estill springs tn 37330
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2019 GMC 1500 Truck

I have a new 2019 gmc 4x4 truck, the manual is not real clear on the flat towing i know to put it in neutral, instructions read to put it in drive , turn off motor and disconnet the battery, but i need power to run my rvi3 brake syatem, does anyone have experience with this problem. sam

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Old 05-13-2019, 05:02 PM   #2
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Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 17,426
My mini van requires the battery disconnect too.
I ran wiring , to a dedicated plug in the seat base wired to the coach chassis batteries .

I did try the plug in direct to the toad battery , to isolate it from the ignition ( key on ) but in a six hour trip the toad battery was dead.
On a side note , I had to replace that battery within 8 months ; don't know if drawing it down killed it or if it was on it's way out anyway.

99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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Old 05-14-2019, 04:54 AM   #3
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Spartan Chassis
Join Date: Feb 2016
Location: MotorCoach Resort, St Lucie West
Posts: 179
Hi Sam, been thinking about your need for power to your brake system. I know nothing about your vehicle, but do you have a 12 volt plug inside your vehicle that is "always on"? If so you can run your brakes off that. You always need to have a charge line to your toad to keep the battery up.
Just trying to help, I'm guessing about the configuration of your brake system and toad.

2019 DSDP 4363 Spartan K2, NKK F21594
Bob, Loretta, & Paddy the Westy.
2015 Grand Cherokee
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Old 05-14-2019, 01:14 PM   #4
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On a GM truck you need to disconnect the battery so you can leave the ignition on so the steering wheel is not locked and don't run down your battery. You will need a power wire direct from your battery to the RVI brake. They recommend a battery charger also. Call RVI with your questions, they are very helpful, we have their brake and are very satisfied. If your truck is the new version of the 2019, I hope you have the 2 speed transfer case, because the single speed transfer case is not flat towable. This was a change for 2019 new edition because they did make some 2019 "old" body style. Good Luck
2018 Dutchstar 4018
2019 F 150 Eco-boost
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Old 05-14-2019, 03:34 PM   #5
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Do the pushbutton start vehicles steering wheels lock? My Cadillac does not.
2006 Damon Daybreak 3272 w/F-53 @ V10
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