What does the TC light with a slash mean in the Envision?

[SanPaislee]

The TC light with a slash in the Envision is the Traction Control System indicator. Press the button below the gear shift mechanism, then turn off the ignition and restart to reset the system, and the TC light with a slash will turn off. If the warning light remains on or comes back on while driving, repairs are needed. Possible causes for the TC light to illuminate include: solenoid valve failure; dirty oil clogging the solenoid valve filter; wear on the actuator gear and impeller, causing oil pressure leakage and triggering the alarm; dirty throttle with an opening reaching 20%; or the engine computer misjudging a TC fault. The working principle of the Traction Control System is to replace the mechanical connection between the accelerator pedal and the throttle with an electronic throttle control device. Sensors transmit the accelerator pedal information to the ECU, which generates a control voltage signal based on this information. The motor then adjusts the throttle according to the signal, reducing throttle opening and controlling wheel slip. For drivers operating the vehicle in rainy or snowy conditions, this can help reduce occurrences of wheel slip or loss of control.

[LaRiley]

That day while driving my Enclave to the suburbs, suddenly a TC with a slash light came on the dashboard. I immediately pulled over to check my phone and found out the traction control system was turned off, probably because I accidentally pressed the button near the steering wheel. This system usually prevents wheel slip on slippery roads and is quite useful. When turned off, the car might fishtail during acceleration, especially on rainy or snowy days, so extra caution is needed. Later, I found the switch button in the settings on the center console screen, pressed it to turn the system back on, and the light went off. If the light stays on without touching the button, there might be a system malfunction. It's recommended to visit a 4S shop to check the wiring to avoid affecting driving safety. Always pay attention to these small alerts while driving—safety first. The Enclave's design is very thoughtful.

[Herbert]

Regarding the issue with the slashed TC light on the Envision, I believe it indicates the traction control system is in the OFF state. In Buick models, this system monitors wheel speed through sensors and automatically limits speed upon detecting slippage. The slashed light means you've manually disabled it, typically via a button on the center console. With it off, engine power feels more direct, making it suitable for enjoying acceleration on dry, flat roads—but avoid using this mode in snowy conditions as it increases the risk of losing control. If the light flashes persistently or illuminates unexpectedly, it might be due to dirty sensors or electrical faults. Try washing the car and restarting the system; if the issue persists, visit a professional repair shop. Regular maintenance, including keeping the undercarriage clean, can help reduce false alerts.

[AlexanderLee]

A decade of driving the Enclave taught me that the TC light with a slash means the traction control system is off. Last time my daughter drove it, she accidentally pressed it off, and the dashboard light made it obvious the system was disabled. This Buick feature prevents skidding on muddy roads—after turning it off, ease up on acceleration during turns and avoid stomping the gas. If the light stays on without touching the button, it might be due to a faulty switch contact or aging module; gently press the switch to check responsiveness. Routine checks of the center console settings are crucial—keeping the system active ensures peace of mind and safety.