What does a yellow exclamation mark in a car mean?

[XavierLee]

A yellow exclamation mark in a car indicates a brake system malfunction. Reason: It usually appears because the handbrake is not released, and it will mostly disappear after releasing the handbrake. If it does not disappear, you need to go to a 4S shop for inspection and repair. There are generally three types of exclamation mark indicator lights on a car's dashboard: 1. A triangle with an exclamation mark in the middle: This is a general fault indicator light, mainly indicating overheating of the dry dual-clutch transmission clutch, intervention or failure of the fuel cutoff system, parking sensor failure, or external light failure. 2. A circle with parentheses and an exclamation mark in the middle: This is a brake system warning light, which mainly lights up when the brake fluid level is too low or when there is a malfunction in the brake system. 3. A horizontal line with parentheses and an exclamation mark in the middle: This is a tire pressure monitoring warning light, which lights up when the pressure in one of the vehicle's tires is too low.