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What does the exclamation mark inside a triangle indicate as a warning light?

2 Answers
ManuelMarie
07/24/25 10:38am
A triangle with an exclamation mark inside indicates a malfunction in the vehicle's general performance or components and functions. Common issues include parking sensor failure, fuel cutoff system intervention or malfunction, external light failure, and 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 vehicle warning symbol. Besides the triangle with an exclamation mark, there are four other forms of exclamation mark warnings: a yellow gear with an exclamation mark inside, a red circle with parentheses and an exclamation mark in the middle, a yellow bracket 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 situations: Automatic transmission fault: A yellow gear with an exclamation mark inside is the automatic transmission fault warning light, indicating a transmission malfunction or transmission lubricant level 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. The brake system should be inspected immediately to avoid accidents. Tire pressure anomaly: A bracket with a horizontal line and an exclamation mark in the middle represents the tire pressure monitoring warning light, which illuminates when the vehicle'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 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 perform 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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DeCharlotte
08/11/25 5:42am
A few days ago when I was driving, I also saw that yellow triangle warning light with an exclamation mark illuminated on the dashboard, which made me a bit nervous. This light is called the master warning light, indicating there's some issue with the car system that needs checking. I've encountered it a few times before, like when a door wasn't closed properly or the trunk wasn't locked tight - it turned off once I fixed it. Low tire pressure can also trigger this light, so it's good to keep a tire pressure gauge handy for regular checks. Ignoring it might hide more serious risks like brake failure or sensor malfunctions. Remember to pull over safely immediately and check the vehicle manual to confirm the light's meaning - don't stubbornly drive to the repair shop for scanning. Performing simple monthly maintenance like checking tires and fluid levels can prevent many minor issues.
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