
There are five situations when an exclamation mark appears on the car dashboard, namely general fault, automatic transmission fault, brake system fault, abnormal tire pressure, and lighting fault. The following is a detailed analysis of the five situations: General Fault: A triangle with an exclamation mark inside. If this symbol lights up, it indicates a fault in the general performance or components and functions of the car. Mainly includes parking sensor failure, fuel cut-off system intervention or failure, external light failure, engine oil pressure sensor failure, etc. It is necessary to go to a 4S shop for inspection to find out the source of the fault. Automatic Transmission Fault: A yellow gear with an exclamation mark inside. This is the automatic transmission fault warning light, indicating that there is a fault in the transmission or the transmission lubricating oil is below the normal range. The transmission oil needs to be replaced in time. Brake System Fault: An exclamation mark in the middle of a circle with brackets. This represents the warning of the brake system, mainly including brake system failure and low brake fluid level. The brake system needs to be inspected immediately to avoid accidents. Abnormal Tire Pressure: An exclamation mark in the middle of a horizontal line below brackets. This represents the tire pressure monitoring warning light. When the tire pressure of the car is too low, this warning light will light up. It is necessary to check the car's tire pressure and restore it to the normal range. Lighting Fault: A yellow bulb with an exclamation mark. This is the lighting fault indicator light, indicating that there is a fault in the car lights. Solution: Go to a 4S shop for inspection and treatment as soon as possible, or you can check it yourself, focusing on commonly used bulbs such as turn signals, fog lights, and interior lighting, to see where the problem is.

I've been driving for over a decade, and the yellow triangle exclamation mark on the dashboard is the most common warning light. It's like the car is yelling at you, 'Hey, check what's wrong with me!' It could indicate low tire pressure, an oil change is due, or a brake system warning. Once, this light came on in my car, and it turned out the trunk wasn't closed properly. But you should never take it lightly, especially when you see a red exclamation mark—that indicates brake failure or low oil pressure, and you need to pull over immediately and call for assistance. Nowadays, many cars allow you to press a button on the steering wheel to pull up specific trouble codes. For beginners, it's advisable to keep an OBD scanner handy—just plug it in to read the faults.

Experience from veteran auto repair shop masters: That yellow exclamation mark is the car's computer sending an alert. There are four common causes—brake pads worn thin triggering the sensor, tire pressure below 1.8 bar, electronic stability system malfunction, or failure to reset after scheduled maintenance. Last week, a car owner came in with the light on, and it turned out the fuel cap wasn't tightened properly. If it's a red symbol with (!) in brackets, it's most likely the handbrake wasn't fully released. It's recommended to first check other small icons on the dashboard to help diagnose—for example, a wavy line indicates an oil issue, and a battery icon points to a charging fault. If you're unsure, just take it to a 4S shop for a computer diagnostic scan.

New drivers, don't panic! There are two types of (!) symbols on the dashboard. The yellow triangle resembling a traffic sign indicates the system has detected a minor issue - you can still drive but should get it checked soon. If it's a red circle with an exclamation mark, that's serious! Commonly seen with low brake fluid or ABS system failure. My old Volkswagen once lit up red - turned out to be a brake fluid leak, so I topped it up temporarily to drive to the repair shop. Modern cars are smarter; when a Mercedes shows the yellow light, the central display will show messages like 'Check headlights' or 'Add washer fluid'. Remember to wipe your dashboard during car washes to prevent dust from covering warning lights.

Danger Alert! Immediate action required when seeing the red (!) symbol: 1. Keep the steering wheel steady 2. Turn on hazard lights 3. Pull over slowly. This may indicate insufficient brake hydraulic pressure or power steering failure. Once while driving on a mountain road, the red light suddenly came on and the car body started shaking – it turned out to be a cracked brake hose. Yellow warnings aren't as urgent, but continued driving may damage the engine. Remember the tire pressure warning uses the same symbol, often triggered by temperature drops in winter. During maintenance, ask the technician to clear fault codes with a diagnostic tool – sometimes it's just sensor errors. Recommended: Check brake fluid level every three months; top up immediately if below MIN mark.


