Q: Q: Traction Control System

asked by on

2014 Kia Optima traction control light has come on, thanx. Sean ps this car is automatic 5 speed

My car has 76312 miles.
My car has an automatic transmission.

Hi Sean, I believe you are correct in that you may have a faulty wheel speed sensor at one of your wheels that may be dirty or not working properly. The traction control system monitors the steering and stability of the vehicle and engages when loss of traction has been detected. This is done by the use of electronic sensors at each of the four wheels that communicate with the Powertrain Control Module (PCM) regarding steering performance and stability in adverse weather conditions. 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 anti-lock braking system and the traction control system work together to maintain the stability of the vehicle. The computer uses this information received from electronic sensors regarding the rotational speed of each wheel, the horizontal motion of the vehicle, and the vertical motion of the vehicle to determine how to direct the traction control system or the anti-lock braking system to best control the vehicle when needed. 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. I would recommend having a professional from YourMechanic come to your location to properly diagnose your traction control system.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: Traction Control System

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: Gurgling sound from behind the dash?

I really liked your idea of including the youtube link of the sound you are hearing. The sound is pretty subtle in the recording, but I think it is coming from the Mode Actuator or Temperature Actuator. Those components...

Q: Q: AC not blowing cold air

Hi there. From the description you have given, your vehicle's inoperative a/c could be a warrantable situation. If, the car lot won't take care of your vehicle's a/c, then confirming the diagnoses is very important. It could be, the a/c...

Q: 2012 kia optima has issues. Airbag light came on and stays on. Have to put car in neutral to start it sometimes.

It sounds like you may have a problem with the vehicle's stability control system or traction control system. The traction control system monitors the steering and stability of the vehicle and engages when loss of traction has been detected. This...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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.