What does the red exclamation mark inside a triangle in a car mean?

[DelOmar]

The red exclamation mark inside a triangle in a car is a general fault indicator light. Possible causes for its illumination include overheating of the dry dual-clutch transmission clutch, intervention or malfunction of the fuel cut-off system, parking sensor failure, external light malfunction, engine oil pressure sensor failure, or traction control system warning/failure. In addition to this general fault light, other warning lights featuring an exclamation mark include the brake system warning light and the tire pressure monitoring indicator light. When the vehicle's electrical system is activated, the indicator lights on the dashboard will illuminate as the car enters self-check mode. These lights should turn off after the self-check is completed. If they remain lit, it indicates a vehicle malfunction that requires prompt repair.

[StMarcus]

I saw this warning light with a red exclamation mark inside a triangle, which is definitely the brake system warning light on the car dashboard. It means you need to pay extra attention to the brakes while driving. Common causes include the handbrake not being fully released or the brake fluid level being too low. With twenty years of driving experience, I've encountered this issue several times. If not addressed promptly, the brakes may become soft or even fail, which is quite dangerous. You can first check if the handbrake is stuck. If not, inspect the brake fluid reservoir in the engine compartment. If the fluid level is low, add some dedicated brake fluid. However, if the light stays on and is accompanied by unusual noises, take the car directly to a repair shop or 4S店 to check the ABS system or sensor issues. Never push your luck on the highway.

[LaNadia]

As a car enthusiast, I often ponder these dashboard symbols. That triangle exclamation mark light represents the brake warning, essentially the system alerting you that the brake function may be abnormal. The reasons are varied, such as the handbrake being pulled too tight without resetting, insufficient brake fluid, or a sensor malfunction. I've seen cars with this light on in the garage, and the first step is usually to stop and verify the handbrake status. If the fluid level is low, simply topping it up will suffice; but if accompanied by deteriorating braking performance, be wary of issues like hydraulic system leaks or pump damage. Safe driving is paramount—never take risks. Regular maintenance checks on brake pads and fluids can prevent such sudden occurrences.

[Emmett]

As a new driver, I noticed a red exclamation mark inside a triangle on the dashboard, which really scared me. An experienced driver told me it's a signal for brake system issues. I immediately pulled over to check, often caused by the handbrake not being fully released—just adjust it and try again. If that doesn't work, check the brake fluid reservoir and top it up if the level is low. The key point is not to ignore the warning light, as it could lead to brake failure accidents. The simplest solution I learned is to park safely and call for help—safety first.

[AllisonAnn]

In my daily driving, that warning light always indicates something unusual with the brake system: it could be the handbrake not fully released, low brake fluid level, or a minor leak. Once, I forgot to release the handbrake myself, and the light stayed on—luckily, nothing serious happened, just needed to stop and reset it. I recommend checking the dashboard every time you start the car; if the light is on, prioritize inspecting the handbrake and fluid level to avoid long-distance driving. Regular maintenance, including timely brake fluid replacement, saves money and ensures peace of mind—I’ve discussed these tips in car enthusiast groups.