Why does Buick LaCrosse TC light light up?

TC stands for TCS vehicle. It will light up when the acceleration slip adjustment is turned off by pressing the switch.

1. The old LaCrosse is switched under the shift lever, and the new LaCrosse and ESP are the same key, above the central control. The lamp may be caused by poor contact or need consultation. Electronic throttle failure. Check it with a special computer. It should be fine to clean the throttle. If it still fails after cleaning, it needs to be replaced. Of course, if you turn off the TC system, the TC light is always on.

There are many reasons why 2.TC light is on. Specifically, you should check whether there is a fault code in the 4S shop, and then carry out maintenance according to the definition of the fault code. Generally, the disc of the wheel speed sensor is stuck with iron filings and other dirty things, and the fault can be eliminated by cleaning. If the TC button of the control lever M is turned off, the TC light will also light up.

3. The computer checks the fault code. To be exact, the TCS light should be on. Meanwhile, please check the traction control system. (High match), it is recommended to check whether the throttle body needs to be cleaned, or whether it is due to the solenoid valve of the intake and exhaust camshaft. TC stands for TCS vehicle acceleration slip adjustment, which will light up when the switch is turned off. When the old LaCrosse is switched, it is under the shift lever, while the new LaCrosse and ESP are the same key, which is above the central control.