Buttons Above Sync Screen
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Tuned
Joined: May 2015
Posts: 385
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Buttons Above Sync Screen
What does the far left button above the sync screen do? The other 3 are traction control, hazards, and hill descent. I think it may be exhaust brake and it seems to have 2 different settings but I can't seem to find anything about it in the manual and when I push it nothing obvious seems to happen.
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Tuned
Joined: May 2015
Posts: 385
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Checked the manual again. Found the answers I was looking for in the brake section. It is indeed engine brake and if anyone is wondering the first button press enables manual control mode and the second press enables automatic mode and then third press turns the system off again.
Hotshot
Joined: Oct 2015
Posts: 19,711
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From: Wyoming
And that engine/exhaust brake really works! I was coming down a steep set of switchbacks and I turned on the engine/exhaust brake button. It wasn't quite like going from 4Hi to 4Lo but I most certainly could tell that it was working.
Posting Guru
Joined: Jan 2017
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From: Finger Lakes, NY
Posting Guru
Joined: Jan 2017
Posts: 1,069
Likes: 9
From: Finger Lakes, NY
You may be correct!, I might of rec'd this info from the new Denali I test drove as well. I'm sure others here with the truck in hand can confirm.
Senior User
Joined: Feb 2017
Posts: 405
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From: BC, Canada
I am curious how well it works as well. On my current Ram dually, the engine brake works by itself, BUT if you put tow/haul on, it works much better as the truck automatically gears down on decent.
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Junior User
Joined: Dec 2016
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Not sure how well it works in Tow/Haul mode, since I haven't towed anything yet. I use it often, figure might as well let the engine slow the truck some maybe save some brake pad in the process. IMHO similar to the way I use the manual transmission to slow my car.
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Senior User
Joined: Feb 2017
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From: BC, Canada
That's entirely what I do in my Dodge. It's become habit for me now. Every time I jump in a automatically turn on engine brake and tow/haul. (I live in hilly county) it sVes on your brakes big time.
Posting Guru
Joined: Jan 2017
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From: Finger Lakes, NY
I'd go and try the exhaust brake, cycle the truck to confirm it stays on (or resets to off), but I can't!.... yet
...my F350 is on order and not due in until 2/28-3/6
Elder User
Joined: Aug 2006
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I'd rather put brakes in than a transmission any day! I'm only going to use this feature for safety, not to save a $40 set of pads.
Senior User
Joined: Feb 2017
Posts: 405
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From: BC, Canada
Well with a combined milage of about 350,000 KM's I have yet to have an issue. I routinely pull a 43' toyhauler in steep grades with zero issue as well. I've yet to hear of a premature failure due to using the engine brake that was engineered and designed for the truck.
Tuned
Joined: Oct 2016
Posts: 342
Likes: 16
Do you run it in automatic or manual mode. Also, whats the difference between the two modes.