A yellow exclamation mark fault light illuminates on the dashboard of a car, usually indicating some sort of malfunction or anomaly in the vehicle. Specifically, there could be several reasons:
Ground Adhesion Control System Failure: In this case, the vehicle's traction control system may not work properly, resulting in possible skiddling while the vehicle is moving.
High tire pressure and flat tires: The yellow exclamation mark fault light can be caused by a tire problem, such as high tire pressure or a flat tire. These problems can lead to tire damage and affect driving safety.
Driving time at low tire pressure: If the vehicle is driven at low tire pressure for a long time, it can cause excessive tire wear and even cause serious problems such as tire bursts.
Faulty tire pressure sensor for tires: A faulty tire pressure sensor may cause the yellow exclamation mark fault light to illuminate. In this case, the vehicle may not be able to detect the tire pressure normally, which will affect driving safety.
Automatic transmission damage: The yellow exclamation mark fault light can also be caused by a damaged automatic transmission. In this case, the vehicle may not be able to shift properly, resulting in problems during driving.
Conventional fault indicator: The yellow triangle exclamation mark is a regular fault indicator that may indicate some kind of conventional fault in the vehicle, such as poor contact or malfunction of external lights, broken wiring harness in the trunk, warning or malfunction of the drive anti-skid system, faulty parking sensor, etc.
Brake System Fault Light: A yellow exclamation mark fault light can also be a brake system fault light, indicating a problem with the brake system. In this case, it is necessary to immediately check whether the brake system is working properly.
In short, when the yellow exclamation mark fault light is on, the owner should check it in time and take corresponding measures to solve the problem to ensure driving safety.