What does TC stand for in cars?
2 Answers
TC in cars stands for Traction Control System, which improves the vehicle's passability. When the ABS (Anti-lock Braking System) detects wheel slippage, the TC system applies braking to the slipping wheels to prevent traction loss. When the TC system is active, a yellow TC indicator light flashes on the dashboard to alert the driver. The working principle of the Traction Control System involves replacing the mechanical connection between the accelerator pedal and the throttle with an electronic throttle control device. Sensors transmit the accelerator pedal's information to the ECU (Engine Control Unit), which then generates control voltage signals based on the input. The servo motor adjusts the throttle according to these signals, thereby reducing throttle opening and controlling wheel slippage.
I've been driving for over a decade, and TC usually refers to the Traction Control system. This system is particularly useful on slippery roads. If the tires start to skid, it immediately intervenes to limit engine output or apply brakes to the skidding wheel individually. The yellow car icon with an S-shaped arrow on the dashboard is its indicator—flashing means the system is active, while a steady light suggests there might be a fault. I remember last winter when I was going uphill in the snow, the TC system kicked in just as the wheels were about to spin. Experienced drivers recommend not turning off this function casually—it can save a lot of trouble on rainy or snowy days. If the light stays on continuously, it's best to check the wheel speed sensor or wiring issues.
