What does the yellow triangle exclamation mark on the car dashboard indicate?

[VonTucker]

The yellow triangle exclamation mark on the car dashboard is the TCS (Traction Control System) indicator light, which is part of the ground adhesion control system. This light serves two main functions: 1. It illuminates to remind you to turn off the traction control system; 2. If it stays lit while the traction control system is active, it indicates a problem with the TCS. Typically, the light flashes when the TCS is in operation. If it remains constantly lit, it signifies a TCS issue. The solution to a lit traction control indicator is to restart the vehicle to restore normal function. A lit traction control indicator alerts the driver to deactivate the traction control system, which is a safety feature designed to adjust the vehicle's driving algorithm based on road conditions, keeping the drive wheel speed within an optimal range. TCS significantly enhances vehicle stability, especially on slippery surfaces. Without TCS, accelerating can cause the drive wheels to slip—rear wheels may lead to fishtailing, while front wheels can cause loss of steering control, making the vehicle veer to one side. With TCS, the car can prevent or mitigate such occurrences during acceleration, ensuring it stays on the correct path.