Traction Control Warning Light
The Traction Control System (TCS) warning indicates wheel slip has been detected or the traction/stability control system may be disabled by a fault.
Drive smoothly and reduce speed. If the warning stays on when road conditions are normal, scan the ABS/TCS system.
Traction control reduces wheel spin by using wheel-speed data and engine or brake intervention. A flashing TCS light can indicate active intervention, while a continuously illuminated light may indicate the system is disabled or faulty.
⚠️ Drive With Caution
Drive cautiously if the TCS light remains on because traction assistance may be unavailable. If ABS or brake warnings also appear, have the vehicle inspected promptly.
$100-$1,500+ depending on sensor, wiring, calibration, or module fault
Repair costs vary depending on the exact diagnostic trouble code, vehicle make and model, labor rates, and which component has failed. Always diagnose the problem before replacing any parts.
A flashing traction-control light can be normal during wheel slip, but a warning that stays on can indicate that traction or stability assistance is unavailable and should be diagnosed.
Is a flashing traction control light a problem?
No. Flashing means the system is actively cutting wheel spin, which is exactly what it should do on a wet or loose surface. A light that stays on steadily is the one to worry about.
Can I drive with the traction control light on?
Yes, but the car will no longer catch a slide for you. Ease off in rain, on gravel, and around roundabouts until the fault is fixed.
How is a traction control warning diagnosed?
First establish whether it only flashes during slip or stays lit all the time. A steady light calls for a scan of the ABS and stability modules, inspection of the wheel-speed sensors and their wiring, a check of steering-angle sensor calibration, and confirmation that battery voltage and module communication are healthy.
How much does it cost to fix traction control?
A wheel-speed sensor is usually $150-$400 fitted, and a steering-angle recalibration around $100-$200. A failed control module can reach $1,500.
See every fault code, sensor test, and repair step for C1234