What does the circle with an exclamation mark mean on the car display?

[Joe]

Red exclamation mark (specifically a circle with an exclamation mark inside parentheses) indicates a warning for the braking system, mainly signaling a braking system malfunction or low brake fluid level. Solution: Immediate inspection and repair of the braking system are required to avoid accidents. Apart from the red exclamation mark representing braking system issues, other exclamation marks on a car are yellow, indicating general faults, automatic transmission faults, abnormal tire pressure, and lighting faults. Below is a detailed analysis of these four scenarios: General Fault: A triangle with an exclamation mark inside. If this symbol lights up, it indicates a malfunction in the car's general performance, components, or functions. Common issues include parking sensor failure, fuel cutoff system intervention or malfunction, external light failure, engine oil pressure sensor failure, etc. A visit to a 4S shop is necessary to diagnose and address the fault source. Automatic Transmission Fault: A yellow gear with an exclamation mark inside. This is the automatic transmission fault warning light, indicating a transmission malfunction or transmission fluid level below the normal range. Transmission fluid should be replaced promptly. Abnormal Tire Pressure: A horizontal line under parentheses with an exclamation mark in the middle. This represents the tire pressure monitoring warning light, which illuminates when the car's tire pressure is too low. Check the tire pressure and restore it to the normal range. Lighting Fault: A yellow bulb with an exclamation mark. This is the lighting fault indicator, signaling a malfunction in one of the car's lights. Solution: Visit a 4S shop for inspection and repair as soon as possible, or conduct a self-check focusing on commonly used bulbs such as turn signals, fog lights, and interior lighting to identify the issue.

[LeEverly]

When I first started driving, I encountered that warning light on the dashboard with an exclamation mark inside a circle. At first, I had no idea what it meant until an experienced driver told me it was the low tire pressure warning. When this light comes on, it's best to immediately pull over to a safe spot, get out and check all tires for any that are flat or have loose valve caps. If it's a slow leak, you can top up the air yourself; if the light stays on despite normal pressure, the sensor in the monitoring system might be faulty and needs repair at a shop. Ignoring this light while driving is risky—low tire pressure can lead to sidewall cracks, unstable braking, or blowouts, especially dangerous at highway speeds. I've since developed the habit of glancing at the dashboard every time I get in the car and using a pressure gauge to check tires monthly. Regular maintenance like this saves money and keeps you safer.

[JohnnyLynn]

I've been driving for many years and have seen the circle with an exclamation mark warning light a few times. It mainly indicates low tire pressure. Possible reasons include cold weather causing air contraction, slow leaks, or sensor malfunctions. Pull over immediately to check tire pressure - the normal values are referenced on the label attached to the door pillar. If below standard, simply adding air will solve it; if pressure is normal but the light remains on, suspect a TPMS system failure and visit a professional shop for inspection promptly. Maintaining standard pressure regularly extends tire life, reduces fuel consumption, and prevents blowout accidents. Last time I ignored this light on the highway, it resulted in excessive tire wear and premature replacement, costing me unnecessary expenses. I recommend checking pressure quarterly when rotating tires or washing your car - developing this good habit saves much hassle.

[StRylee]

When the circular exclamation mark light appears on the car dashboard, it is usually a warning from the tire pressure monitoring system, indicating that the air pressure in one of the tires is low. This light is triggered by sensors installed on each wheel when the pressure drops. Common causes include natural air loss, slow leaks, or depleted sensor batteries. First, safely pull over and manually check the tire pressure. If the pressure is normal but the light remains on, the sensor may need calibration or replacement. For maintenance, it is recommended to check the tire pressure monthly and keep it at the manufacturer's recommended value to improve driving stability and safety. If the sensor fails, do not attempt to fix it yourself; seek professional assistance. Driving cautiously and staying observant can help prevent major issues.

[SanMaria]

When I see the circle with an exclamation mark light up on the dashboard, it makes me nervous, especially when I'm driving with my child. This indicates that the tire pressure might be too low, which could affect driving safety. Insufficient tire pressure can cause the car to bounce and lose control, posing a particular danger to children. It's best to pull over to a safe spot immediately and check the tires. If you don't have the tools, ask for help or call for roadside assistance. If the pressure is low, inflate the tires promptly. If the light stays on despite normal pressure, visit a repair shop to check the sensor. At home, I use a tire pressure gauge to check the tires monthly and ensure the spare tire is in good condition, which helps keep us safe on long trips. Prevention is much easier than dealing with an accident later.