The traction control warning light indicates that the vehicle’s traction control system (TCS) may not be functioning correctly. This system helps prevent the drive wheels from spinning during acceleration by automatically reducing engine power or applying braking force to individual wheels.
Traction control works alongside the anti-lock braking system (ABS) and electronic stability control (ESC) to help maintain vehicle stability. When road conditions are wet, icy or slippery, traction control can help prevent wheel spin and improve driver control.
In many situations it is still possible to continue driving when the traction control light is illuminated. The engine, steering and braking systems will continue to operate normally. However, the traction control feature itself may be disabled.
This means that the vehicle may be more likely to lose grip when accelerating on slippery surfaces such as wet roads, snow or gravel.
If the traction control warning light remains on constantly it may indicate a fault within the system. Drivers should take additional care when driving in poor weather conditions because the system may not intervene if the wheels begin to lose traction.
If other warning lights such as the ABS light or stability control light appear at the same time, the vehicle should be inspected as soon as possible.
The most common cause is a faulty wheel speed sensor. These sensors measure the rotational speed of each wheel and send information to the vehicle’s stability control system.
Other causes can include damaged wiring, contaminated sensors, ABS module faults or problems with the electronic stability control system.
A diagnostic scan can identify the exact fault code responsible for triggering the traction control warning light.
Identify possible causes behind warning lights and vehicle symptoms.
Start Vehicle DiagnosisRead traction control and ABS fault codes using an OBD scanner.
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