What is Trailer-Sway Control?

Understanding Trailer-Sway control (TSC)?

If you drive a Toyota Tundra or a Tacoma, chances are you may use it haul something one day. That could be boat, or maybe even horses. Let’s get a better understanding of what trailer-sway control (TSC) is.

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What is Trailer-Sway Control (TSC)

Toyota trucks like the Tundra and the Tacoma come standard with Vehicle Stability Control (VSC). VSC helps to control the vehicle on slippery road surfaces or in a sudden turn. It is in place to help the driver control skidding.  Trailer-sway control is a subset of this system that focuses on trailer sway.

2016 Toyota Highlander towingThere are several conditions that might cause trailer sway. It could be high side winds, like when you are crossing a long bridge, or if the load itself starts to move – if a horse gets spoked or if the cargo starts to shift. Even a driver’s erratic steering can cause trailer-sway.

One of the most frightening situations a truck driver can be in is when the trailer they are pulling starts to sway. It doesn’t matter if the heavy load behind them is a boat, a horse trailer, or building supplies. The idea behind TSC is that it helps to lessen the swaying of the trailer to keep the driver and trailer safe. As you can imagine, if you don’t get the swaying under control it can become extremely dangerous quickly.

How does it work?

Trailer Sway Control first detects the sway and then puts measures in place to control the situation. Toyota TSC has a two-step process. First it detects the trailer sway often before the driver will. Then if automatically applies brake pressure to the individual trailer wheels. It also eases the engine torque. All these actions combined help to steady the trailer and the trailer cargo.

At the same time TSC is working to bring the trailer under control, it is also communicating with cars behind the trailer. The brake lights will go on to alert vehicles behind it that it is slowing down.