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Trailer miles driven in the dash computer (Sync3)

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Old Oct 26, 2021 | 09:53 AM
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Trailer miles driven in the dash computer (Sync3)

I have a camper I tow with my trailer. I was poking around in the Sync3 system and found trailer info and an odometer for how miles I have towed/had the camper hooked up. But it is not right, at least not for the number of miles I have towed. I had 8,100 miles on the truck. The odometer reading said I had towed 6,900 miles. I put 1,200 miles on it breaking it in before I ever hooked the trailer up the first time. So that means I would have had to tow every mile I put on the truck after break-in. But I have driven it a fair bit locally with no trailer and I put 1,900 miles on it going to the OBX and back. So at best, I may have towed for less than 5,000 miles.

But, I have had the truck in tow/haul mode while not actually towing. So it seems it assumes you are towing based on the tow/haul mode and not on actually having a trailer hooked up.

Anyone know for sure how it works?
 
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Old Oct 26, 2021 | 10:08 AM
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My Sync4 (not sure it even matters in this case Sync3 vs 4) also accumulates miles for trailers that are not connected. I saw another report of this as well.

Looks like there is a flaw in the slaw......
 
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Old Oct 26, 2021 | 10:12 AM
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Originally Posted by GM in a Ford
I have a camper I tow with my trailer. I was poking around in the Sync3 system and found trailer info and an odometer for how miles I have towed/had the camper hooked up. But it is not right, at least not for the number of miles I have towed. I had 8,100 miles on the truck. The odometer reading said I had towed 6,900 miles. I put 1,200 miles on it breaking it in before I ever hooked the trailer up the first time. So that means I would have had to tow every mile I put on the truck after break-in. But I have driven it a fair bit locally with no trailer and I put 1,900 miles on it going to the OBX and back. So at best, I may have towed for less than 5,000 miles.

But, I have had the truck in tow/haul mode while not actually towing. So it seems it assumes you are towing based on the tow/haul mode and not on actually having a trailer hooked up.

Anyone know for sure how it works?
you have to deactivate the trailer on your instrument cluster. It is crazy how the truck will recognize the trailer is connected but doesn’t automatically disconnect. It is something I always forget to do. It is done in the trailer settings menu.
 
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Old Oct 26, 2021 | 11:25 AM
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Some years need to have the truck running when you unplug the trailer for it to recognize the disconnect.
 
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Old Oct 26, 2021 | 12:13 PM
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I hooked up my flatbed lights to the trailer wiring, so it thinks there's a trailer all the time. So I created a "NO TRAILER" trailer, and switch to it, so it stops logging miles on my actual trailers.
 
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Old Oct 26, 2021 | 12:28 PM
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I guess I don't care, but might be a factor in resell if it appears to have spent its entire life towing. But I plan to keep this a long time.
 
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Old Oct 26, 2021 | 12:59 PM
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Originally Posted by GM in a Ford
I guess I don't care, but might be a factor in resell if it appears to have spent its entire life towing. But I plan to keep this a long time.
You can reset any trailer's mileage to zero any time you want.
 
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Old Oct 26, 2021 | 02:41 PM
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Just to add, the computer tracking truck and trailer mileage has nothing to do with Sync 3 or 4.
 
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