What does the yellow exclamation mark light in a car mean?

[QuinnMarie]

The situations when a car's yellow exclamation mark light is on are: 1. A triangle with an exclamation mark in the middle indicates that the vehicle's general fault light is on, including issues such as overheating of the dry dual-clutch transmission clutch, intervention or malfunction of the fuel cutoff system, parking sensor failure, external light failure, engine oil pressure sensor failure, or traction control system warning or malfunction; 2. A horizontal line with an exclamation mark in the middle is the tire pressure warning light, which illuminates when the air pressure in one of the car's tires is too low; 3. A circle with an exclamation mark indicates that the car's brake system warning light is on. The brake system warning light comes on when the car is powered up and turns off after the engine is started. The warning light also comes on when the handbrake is engaged and turns off when the handbrake is released.