Enhanced Traction System (ETS)

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Enhanced Traction System (ETS)

The Enhanced Traction System is an all-speed engine based traction control system used by General Motors in many of their models. In some models, the driver has the option to disable this system by pushing a button marked "ETS". The system uses sensors to monitor wheelspin and reduces engine speed, upshifts or retards ignition timing to improve traction.