What does the TC indicator light on the car dashboard mean?

1 Answers
MacAndrew
07/29/25 10:34pm
The flashing TC indicator light on the car dashboard indicates that the traction control system is in operation. TC is the abbreviation for Traction Control System, which means the anti-skid control system. When braking or accelerating sharply on slippery roads, the wheels are prone to skidding, even losing directional control, which can be dangerous. To address such safety issues, the traction control system was developed. The traction control system relies on the electronic sensors of the ABS anti-lock braking system. When it detects that the speed of the driven wheels is lower than that of the driving wheels, indicating wheel skidding, it sends a feedback signal to the car's system. The car system then adjusts the ignition timing, reduces the throttle opening, decreases the throttle, downshifts, or brakes the wheels accordingly to prevent skidding. The traction control system can improve acceleration and climbing ability. The ECU adjusts based on the current speed to enhance stability and acceleration performance. When climbing, excessive braking force can make it difficult for the vehicle to move. With this system installed, the ECU increases traction based on the current conditions, ensuring smooth driving.
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