on when a trailer is detected in the network through the dedicated sensors. These systems can detect the "snaking" of a trailer or caravan and counteract it by braking individual wheels, reducing engine torque and slowing the vehicle down. Activation of TSP normally requires a vehicle-specific wiring loom to be installed.

Some of the advanced systems being introduced in certain vehicles, which may make use of detecting the presence of a trailer, are: lane-change assistant, brake electronics, adaptive cruise control,