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Old 06-25-2019, 09:30 AM   #1
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ESC (Electronic Stability Control)

It has come to my attention that certain trailer hitches are incompatible with ESC and that their manufacturers tell you to turn the ESC off. Following is a statement concerning the effectiveness of ESC for enhancing road safety:

Numerous studies around the world have confirmed that ESC is highly effective in helping the driver maintain control of the car, thereby saving lives and reducing the probability of occurrence and severity of crashes.[33] In the fall of 2004, the American National Highway and Traffic Safety Administration (NHTSA) confirmed international studies, releasing results of a field study of ESC effectiveness in the USA. The NHTSA concluded that ESC reduces crashes by 35%. Additionally, SUVs with stability control are involved in 67% fewer accidents than SUVs without the system. The United States Insurance Institute for Highway Safety (IIHS) issued its own study in June 2006 showing that up to 10,000 fatal US crashes could be avoided annually if all vehicles were equipped with ESC.[34] The IIHS study concluded that ESC reduces the likelihood of all fatal crashes by 43%, fatal single-vehicle crashes by 56%, and fatal single-vehicle rollovers by 77–80%.

ESC is described as the most important advance in auto safety by many experts,[35] including Nicole Nason, administrator of the NHTSA,[36][37] Jim Guest and David Champion of Consumers Union of the Fédération Internationale de l'Automobile (FIA),[38][39] E-Safety Aware,[40] Csaba Csere, former editor of Car and Driver,[41] and Jim Gill, long time ESC proponent of Continental Automotive Systems.[37]

The European New Car Assessment Program (EuroNCAP) "strongly recommends" that people buy cars fitted with stability control. The IIHS requires that a vehicle must have ESC as an available option in order for it to qualify for their Top Safety Pick award for occupant protection and accident avoidance.[42][43]

Before you buy a hitch make sure that it works with ESC.
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Old 06-25-2019, 05:50 PM   #2
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Yep some hitches will create the very forces that the ESC wants to correct. This is the reason I will never use the Blue OX WDH.
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Old 06-25-2019, 05:55 PM   #3
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pls supply a link to site that show/reviews hitch vs ECS
i want to see concrete facts and but just speculation
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Old 06-25-2019, 05:56 PM   #4
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Could you please provide a link for that info?

FEI - Recent posts in this thread touch on this issue:

http://www.airforums.com/forums/f464...es-196502.html

Peter
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Old 06-26-2019, 08:16 AM   #5
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The Anderson and Blue Ox installation manuals tell you to turn off the ESC. There may be others.
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Old 06-26-2019, 12:11 PM   #6
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Quote:
Originally Posted by out of sight View Post
The Anderson and Blue Ox installation manuals tell you to turn off the ESC. There may be others.
I have both the 2016 & 2018 editions of the Blue Ox installation manual. Neither manual mentions ESC or electronic anything. Can you please provide a link to the manual you used? If there are written instructions from Blue Ox, I want to add them to my manual. Thanks.

I've attached the 2018 edition.
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Old 06-26-2019, 12:40 PM   #7
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Originally Posted by Profxd View Post
Yep some hitches will create the very forces that the ESC wants to correct. This is the reason I will never use the Blue OX WDH.
That is a blatant mis information.
I have a 2017 F250 pulling a 2017 30' Classic. Never have disengaged the ESC using a Blue Ox hitch. The combination has been tested under fire during a crash avoidance at 70 mph lane change. The set up performed perfectly.
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Old 06-26-2019, 12:41 PM   #8
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Quote:
Originally Posted by RJJ View Post
I have both the 2016 & 2018 editions of the Blue Ox installation manual. Neither manual mentions ESC or electronic anything. Can you please provide a link to the manual you used? If there are written instructions from Blue Ox, I want to add them to my manual. Thanks.

I've attached the 2018 edition.
https://www.blueox.com/wp-content/up...0015002000.pdf

See page 7. It mentions only Ford or Chevy owners.
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Old 06-26-2019, 12:51 PM   #9
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Quote:
Originally Posted by RJJ View Post
I have both the 2016 & 2018 editions of the Blue Ox installation manual. Neither manual mentions ESC or electronic anything. Can you please provide a link to the manual you used? If there are written instructions from Blue Ox, I want to add them to my manual. Thanks.

I've attached the 2018 edition.
Your manual does say something similar to what out of sight just posted. [p. 7 of 10 in your original’s pagination] “ . . . Ford or Chevy . . . may need to turn off . . . “

Do you see this?

Thanks,

Peter
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Old 06-26-2019, 01:13 PM   #10
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The Anderson manual is more thorough in its explanation of why they tell you to turn off your ESC. See page 2.

https://static1.squarespace.com/stat...18+low+res.pdf
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Old 06-26-2019, 01:13 PM   #11
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So what does the Sway Pro do that other WD hitches do not, which requires Ford or Chevy owners to turn off the factory sway control system while using the Blue Ox Sway Pro? Not that I am a fan or user of Sway Pro, just curious. I use the Reese Strait Line and have not seen this type of instruction.
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Old 06-26-2019, 01:42 PM   #12
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Does the turning off of the ESP also apply to Propride and Hensley ?
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Old 06-26-2019, 02:04 PM   #13
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Quote:
Originally Posted by OTRA15 View Post
Your manual does say something similar to what out of sight just posted. [p. 7 of 10 in your original’s pagination] “ . . . Ford or Chevy . . . may need to turn off . . . “

Do you see this?

Thanks,

Peter
"Issue: The ride is excessively rough.

Resolution: If you are a Ford or Chevy owner you may need to turn off the factory sway control system while using the Blue Ox® SwayProTM."

This potential resolution for excessively firm ride relates to SUV owners who have electronically controlled variable rate dampers (shocks) equipped that can automatically increase (or decrease) the firmness of the ride (for ride comfort and improved control) as dictated but the vehicle dynamics computer.

Electronically controlled dampers can firm up the ride automatically if the computer senses too much wheel travel or body motion under certain circumstances, which can include rolling down the road in a straight line with no sway whatsoever. For instance I can see why a vehicle setup with this system may automatically provide a rougher (stiffer) ride if any improper hitch setup causes the rear end to bounce up / down (porpoise) the road based on improper calibration (not enough WD for example). This is an edge case only for certain vehicles only with these dampers installed and these dynamics are not isolated to using any specific hitch. I had a Range Rover once that did this (locked out the electronically controlled dampers) based on a different issue and the ride was so firm I thought I was in Porsche GT3.

The side effect of turning off variable rate damping by disabling dynamic stability control is that you unfortunately lose other important features of stability control aimed at Yaw control, body roll control, etc.. not a good idea to disable with or without a trailer attached. Just calibrate your hitch correctly and no problems. Again, this is an edge case any why it is listed in their manual as a potential resolution to excessively rough ride. Has nothing to do with other elements of vehicle dynamics control related to sway.

My GMC actually has sway dynamics prevention activated in the DSC system when connected to a trailer - which is a good thing, I would never run without it activated. I have Stone age regular dampeners on my GMC so they are not variable rate.

anyhoo... back to work
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Old 06-26-2019, 05:22 PM   #14
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Quote:
Originally Posted by out of sight View Post
https://www.blueox.com/wp-content/up...0015002000.pdf

See page 7. It mentions only Ford or Chevy owners.
Thank you. I received the April 2019 updated manual from Blue Ox earlier today. Fortunately, it does not apply to my tow vehicle. 👍🏼 😏
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