Skip the auto shop - Our mechanics make house calls

Q: Indicator Lights Electronic Stability Control (ESC) Indicator Light stays on

asked by on

My Indicator Lights Electronic Stability Control (ESC) Indicator Light has came on and will NOT go off. What could it be?
My car has an automatic transmission.

This is related to the traction control system in your car. This system monitors the steering stability of the vehicle and engages when loss of traction has been detected. This system counteracts over steering and under steering by reducing power and/or applying brakes to specific wheels. This is done by the use of electronic sensors that communicate with the Powertrain Control Module (PCM) regarding steering performance and stability in adverse weather conditions.

There are several components that are necessary for your traction control system to work properly. When the brakes lock up, this may cause a loss of control and the vehicle may slide. The anti-lock brake system prevents this from happening by preventing the brakes from locking up. The traction control system works by reducing engine speed and determining which wheel to apply brake pressure to in order to prevent the vehicle from sliding.

The Powertrain Control Module (PCM) receives information from electronic sensors regarding the rotational speed of each wheel, the horizontal motion of the vehicle, and the vertical motion of the vehicle. When this warning indicator light comes on in the dashboard, this could be an indication of several issues such as faulty wheel speed sensors, a faulty steering angle sensor, a faulty rotational speed sensor or a problem with the steering rack. In some cases, the traction control system may simply need to be reprogrammed.

To avoid any unnecessary repairs, I would recommend having a professional from YourMechanic come to your location to properly diagnose your traction control system firsthand.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • Indicator Lights Electronic Stability Control (ESC) Indicator Light stays on

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 2005 Kia Sorento from Neptune NJ.Can it be serviced?? Please help

Hi there. We have recently changed our website so that customers in our service areas can submit a question to this section, so we should have a mobile mechanic in your area that can complete the AC compressor replacement and...

Q: Engine losing power, gas pedal unresonsive

Hello there, a few common faults can cause these type of symptoms. The most common would be the vehicle going into limp mode, a fuel pump problem, bad spark plugs, faulty MAF sensor, a vacuum leak, or faulty oxygen sensor....

Q: Warning regarding throttle and limp home mode

Hello. This is the first sign of a bad throttle body. This is a common failure on this vehicle. When the throttle motor or position sensor fails this occurs as the computer can no longer control the throttle. Most of...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.