What does the triangle exclamation mark on the car mean?

2 Answers
EloiseFitz
07/25/25 2:43pm
A triangle with an exclamation mark indicates a malfunction in the car'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: Visit a 4S shop for inspection to identify the source of the fault. The exclamation mark is a common fault indicator in cars. Besides the triangle with an exclamation mark, there are four other forms of exclamation marks: a yellow gear with an exclamation mark, 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 scenarios: Automatic transmission fault: A yellow gear with an exclamation mark is the automatic transmission fault warning light, indicating a transmission fault or transmission lubricant below the normal range. Transmission oil 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 bracket with a horizontal line and an exclamation mark in the middle represents the tire pressure monitoring warning light. This light turns on 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 is the lighting fault indicator, signaling a fault in the car'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 lights to identify the issue.
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LaCaden
08/11/25 9:12pm
That triangle exclamation mark light on the dashboard is usually the master warning light, indicating there's an issue with the car that needs immediate attention. The most common problem is the tire pressure monitoring system (TPMS), such as low or excessively high tire pressure—especially since new cars come equipped with TPMS sensors. It could also signal a brake system or ABS malfunction, meaning electronic assistance has failed. Ignoring it poses significant risks, particularly at high speeds where loss of control or increased accident likelihood may occur. It's recommended to pull over safely, first checking if tires are flat or leaking, then consulting the manual for trouble codes. Unresolved, it might involve engine or fuel system issues. Developing a habit of monthly tire pressure checks can prevent this problem, saving last-minute panic. If still unclear, promptly seek professional diagnosis at a repair shop to avoid minor issues escalating into major repairs.
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