What does the TC with a slash light mean in a car?

1 Answers
HeidiLynn
07/29/25 4:10pm
The appearance of a TC with a slash icon on the dashboard indicates that the traction control is turned off. TC stands for Traction Control System, which ensures that the vehicle obtains optimal traction under various driving conditions. There are three possible reasons for this indicator light to illuminate: 1. The function was manually turned off via the button. 2. Driving too fast on wet or muddy roads. 3. A malfunction in the traction control system. More details about traction control are as follows: 1. The traction control system is also known as the anti-slip regulation system. When braking on slippery surfaces, the wheels may skid, potentially leading to loss of directional control. Similarly, during acceleration or sudden acceleration, the drive wheels may also skid, especially on icy or slippery roads, posing a risk of losing control. 2. The traction control system relies on electronic sensors to detect when the driven wheels' speed is lower than that of the drive wheels. It then sends signals to adjust ignition timing, reduce throttle opening, downshift, or apply braking to the wheels to prevent skidding. The traction control system not only enhances driving stability but also improves acceleration and climbing capability.
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