What does the constant illumination of the yellow TC slash light in Buick indicate?
4 Answers
The constant illumination of the yellow TC slash light in Buick indicates that the traction control is turned off. Taking the 2020 Buick Verano as an example, it is a compact car with body dimensions of 4723mm in length, 1802mm in width, and 1466mm in height, a wheelbase of 2700mm, and a curb weight of 1310kg. The 2020 Buick Verano features a front MacPherson strut independent suspension and a rear torsion beam with Watt's linkage non-independent suspension. It adopts a front-engine, front-wheel-drive layout and is equipped with a 1.0T turbocharged engine delivering a maximum horsepower of 125PS, a maximum torque of 180Nm, and a maximum power of 92kW.
As a long-time Buick owner for several years, when that TC slash yellow light comes on, it indicates an issue with the traction control system. The system is designed to help prevent wheel spin on slippery surfaces, but a constant yellow light could mean the sensor is dirty or accidentally turned off. I've encountered this problem in my car too, caused by excessive dust buildup on the wheel speed sensor leading to unstable signals. After cleaning it, the light went off. My advice is to first pull over and check if you've pressed the TC OFF button by mistake. If the issue persists, drive slowly to a repair shop. Don't underestimate this – safety comes first! Prolonged neglect might even affect the ABS system. During regular maintenance, remember to frequently check tire pressure and sensor cleanliness to avoid many troubles. If the light comes on while driving, avoid sudden acceleration and maintain steady control to prevent unexpected skidding.
As someone who's been into cars for years, that TC yellow light on a Buick is no small matter—it's a traction control warning signal. There could be several reasons, like a faulty sensor, a short circuit, or a damaged module. Last time my car had it on, the diagnosis showed a loose wheel speed sensor connection, and simply plugging it back in fixed the issue. If you see it light up while driving, make sure to check if the system wasn't manually turned off in the settings. If the issue persists, it becomes dangerous to drive—tires can easily lose control during turns. I recommend keeping an OBD tool handy for self-diagnosis; catching problems early means cheaper fixes. Never ignore it, as prolonged neglect could lead to collateral damage to other parts, like the braking system. Regularly cleaning dirt from the undercarriage during maintenance can help extend sensor life.
I always emphasize driving safety. The constant illumination of the Buick TC yellow light is a sign of traction control issues. The light indicates potential system failure, increasing the risk of skidding. First, check if the button is OFF; if the issue persists, drive slowly to a repair shop. Delaying can worsen the damage, and sensor failure becomes harder to fix. Regularly clean the sensors during car washes to prevent many issues. Safety first!
