pt1965
Member
2011 suburban-what is this button for?
- Thread starter pt1965
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pt1965
Member
well i am a newbie, i didnt mean for that to go out as a poll question. i really want to know what its for? my 2002 doesnt have this
Tonyrodz
Resident Resident
Looks to be the braking adjustment for when you're towing.
runt83
TYF Newbie
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Integrated brake controller for when you are towing a camper/whatever that has brakes. You can use this to engage the gain manually (the slider) and also set the gain with the +/-. I wish my '14 was integrated but alas I have something aftermarket.
Derick
Full Access Member
Yep, it's the built in trailer brake. That said, I prefer having my own. I like my prodigy unit, and it remembers what trailers have which settings.
swathdiver
Full Access Member
Yep, the JL1 ITBC. This also means one of two wires diconnected under the hood for trailering is already connected because of this option. Works great for me and when looking for my truck, made sure it had one. I'm not one who likes add-ons all over the place, even a cell phone.
The other wire that is still disconnected is the one that would provide hotel power to a trailer, such as recharging its battery or running the fridge and such.
915_Tahoe
Your GM Parts Specialist
GM# 22822675
this is the plate with the trailer switch, i've sold this a few times and if your truck has the wire harness there you should be good to install.
swathdiver
Full Access Member
They all have wiring for an aftermarket unit. Are you saying that you've sold this part and folks have used the blunt cut wires to hook it up? I reckon then that if it works, it would work like an aftermarket unit and is not integrated within the truck's computer system as those with JL1 have a different wiring harness and programming.
915_Tahoe
Your GM Parts Specialist
this is an original part to add to the dash,the ones i sold too had the harness there already there from factory. never had the customer come back that didn't have the harness. i would think it would work but i don't know for sure.
915_Tahoe
Your GM Parts Specialist
gm#15926102 TRLR BRAKE CONTROL SWITCH (RPO JL1)
if only it were that easy
swathdiver
Full Access Member
The wiring harness they had was not for this but for an aftermarket controller. You can read about these in the upfitter's manuals. GM is adamant that one cannot add this controller to their truck if it did not already have RPO JL1. Of course, we know anything can be done if someone is willing to pay for it, but the expense would be astronomical.
Looking at pics for another post, I came across this in my folder. Did you sell them this too?
This is the module (computer) for the ITBC.
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Looks like the switch for a brake controller. Top left lever lets you control it manually. The Plus and Minus lets you add or subtract power to the trailer brakes so they will automatically adjust the amps to the brakes. If they don't feel like they are engaging enough stopping power, add some. Hook up your trailer and find a place where you can test how much stopping power you need on your trailer. Do a search on YouTube for videos on setting up your trailer brakes.
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