What does a triangle with an exclamation mark inside indicate as a fault?

2 Answers
DeKatherine
07/29/25 12:45pm
A triangle with an exclamation mark inside indicates a malfunction in the vehicle's general performance, components, or functions. Common issues include parking sensor failure, fuel cut-off system intervention or malfunction, external light failure, or engine oil pressure sensor failure. Solution: It is necessary to visit a 4S shop for inspection to identify the source of the fault. The exclamation mark is a common fault indicator in vehicles. Apart from the triangle with an exclamation mark, there are four other forms of exclamation mark indicators: a yellow gear with an exclamation mark inside, a red circle with parentheses and an exclamation mark in the middle, a yellow parentheses with a horizontal line and an exclamation mark in the middle, and a yellow bulb with an exclamation mark. Below is a detailed analysis of these four scenarios: Automatic transmission fault: A yellow gear with an exclamation mark inside is the automatic transmission fault warning light, indicating a fault in the transmission or transmission lubricant below the normal range. The transmission fluid should be replaced promptly. Brake system fault: A circle with parentheses and an exclamation mark in the middle represents a brake system warning, mainly indicating a brake system malfunction or low brake fluid level. Immediate inspection of the brake system is required to avoid accidents. Tire pressure anomaly: A parentheses with a horizontal line and an exclamation mark in the middle represents the tire pressure monitoring warning light, which illuminates when the tire pressure is too low. Check the vehicle's tire pressure and restore it to the normal range. Lighting fault: A yellow bulb with an exclamation mark is the lighting fault indicator, signaling a malfunction in the vehicle's lights. Solution: Visit a 4S shop for inspection 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.
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CaydenLee
08/14/25 1:03am
I remember the first time I saw that yellow triangle with an exclamation mark light up on the dashboard, my heart almost jumped out. This thing is actually called the master warning light, meaning there's a fault in your car that needs attention. The most common reason is low tire pressure—it happened to my car once when the sensor detected an imbalance and the light came on. It could also indicate a problem with the braking system, such as worn brake pads or low fluid levels. Sometimes, it's related to the electronic system, like an aging battery. If this light comes on, don't panic—first, slow down gradually and pull over safely, then check if any other indicator lights like ABS are flashing. Safety is key, so find a safe spot to check the tire pressure or drive to a repair shop. For prevention, I make it a habit to check the tire pressure every month—don't wait until the light comes on to take action.
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