If the ESC light stays on, it means that your vehicle is not under control. And if the ESC light stays on for an extended period of time, your ESC may be malfunctioning, or the system has been manually disabled. A malfunctioning ESC will stop working until any problems are fixed. The light on the dash can have multiple meanings, so it is important to understand how your particular system works.
Generally, the light will illuminate when the computer is actively trying to maintain control. This light will remain on only as long as the vehicle is not under control. If the light stays on constantly, it is likely that a malfunction has been detected or the system has been manually shut down. A failure of either of these sensors will cause one or both of these systems to deactivate and the traction system and esc service warning lights to come on.
Autoblog has partnered with YourMechanic to provide you with many of the repair and maintenance services you need. If you get the service traction system warning light or service ESC warning light on your GM product, please note that GM has issued several service bulletins to fix the problem, depending on the year, make and model of your vehicle.