TT Brake Service

Gdetrailer wrote:

alexey75 wrote:
Actually I experienced a sway last year. It was pretty windy day with gusts up to 50-60mph. We were driving for about an hour. We were going at a speed of 55-60 mph.
At some point it felt like truck applied full brakes on the trailer for split of a second.
It was very sudden/scary, I didn’t notice any sway before that. The good thing that the message came up on instrumental panel, saying some like: sway control... reduce speed...
Maybe it recognized the sway even before I noticed it :?

Correct.

Your vehicle has a sensor array located on the transmission hump between the drives and passenger seat, detects the movements of your vehicle and compares that to your steering wheel position and driver input to help determine if everything is all good or not.

Nice to have these systems BUT..

I would recommend checking your load weight distribution on the trailer. It is possible your tongue weight may be on the light side. Instability can also be caused by adding too much weight behind the trailer axles. May tow perfect under idea conditions but add some cross winds and it may no longer..

Generally TW should be 10%-15% of the trailer weight, however, the lighter the TW compared to the trailer weight the less stable it becomes.

I personally target 15% which is where the trailer will be as stable as possible.

Granted, there will be times under the wrong combination of conditions that can upset the whole train and cause some instability and you will have to ride out the process of regaining control.