What does the TC slash on the car dashboard mean?
2 Answers
Car dashboard TC slash indicates a fault in the traction control system. Here is an introduction about the traction system: 1. Introduction: The Traction Control System, abbreviated as TCS, is also known as ASR or TRC. 2. Function: Its role is to enable the car to obtain optimal traction under various driving conditions. 3. Mechanism: The control device of the traction control system is a computer that monitors the speed of the four wheels and the steering wheel angle. When the car accelerates, if the computer detects an excessive speed difference between the driving wheels and non-driving wheels, it immediately determines that the driving force is too high and sends a signal to reduce the engine's fuel supply, thereby decreasing the driving force and reducing the slip rate of the driving wheels. The computer uses the steering wheel angle sensor to understand the driver's steering intention and then detects the speed difference between the left and right wheels using the wheel speed sensors to determine whether the car's steering degree matches the driver's intention.
When I was driving and saw the 'TC/' icon on the dashboard, I wondered what it meant. Later, I learned that TC stands for Traction Control, and the slash indicates the system is turned off. Usually, you've pressed a button in the car to turn it off, sometimes by accident. If there's a system failure, like a faulty wheel speed sensor, it can also light up. This feature is especially important on slippery roads—it prevents wheel spin, making it less likely to lose control when driving in the rain. If it stays lit, I suggest first checking for a button with a TC symbol near the steering wheel and pressing it to see if it resets. If that doesn’t work, you should take it to a repair shop to check the wiring or sensors. I always remind myself to keep it on—safety comes first, because an accident at high speed could be serious.
