What does the electronic stability control (ESC) warning light mean?
The ESC warning light is designed to assist drivers in the event of loss of steering control by maintaining control of the vehicle's brakes and engine power.
Electronic Stability Control (ESC) came about as a result of the introduction of anti-lock braking systems (ABS) in new cars over the years. ABS works only when you press the brake pedal, and the rest of the time? That's where electronic stability control comes into play. Like the anti-lock braking system, ESC monitors wheel speed and other parameters such as steering angle. If the computer detects loss of steering control or traction, it may reduce engine power and/or apply the brakes to try to maintain control of the vehicle.
Electronic Stability Control goes by many names, such as Vehicle Stability Control (VSC) and Dynamic Stability Control (DSC), but they all perform similar functions. Refer to your owner's manual for specific information on how the electronic stabilization program works on your vehicle.
What does the ESC indicator mean?
It is important to understand how your particular control system works because the ESC indicator on the dashboard can have multiple meanings. Typically, the light comes on when the computer is actively trying to maintain traction control. This indicator will only light when the vehicle is not under control. If the indicator stays on, a malfunction has probably been detected or the system has been manually shut down.
Most vehicles with a button to turn on the stability control system should also say "off." below the symbol so you know the difference between a malfunction and a system shutdown. If a malfunction is detected, the system will be temporarily deactivated until it is corrected. You will also need to have a certified technician scan the car's computer for codes that will help identify the problem.
Is it safe to drive with the ESC light on?
While electronic stability control can help you avoid losing control of your vehicle, it cannot do everything for you. Try to turn off the lights as much as possible. If you are driving on a slippery road and the light remains on, reduce your speed to make it easier to drive. Any problems preventing stability control from working should also be corrected as soon as possible. There are times when you need to turn stability control off, but in most cases you can leave it on.
If your vehicle's stability control system is not working properly, our certified technicians are on hand to assist you in diagnosing any problems.
