What causes the triangle exclamation warning light in the Tiguan L?
2 Answers
The triangle exclamation mark on the Tiguan L's dashboard is a general fault indicator light. The most common cause is poor contact in external lights. If it's a yellow triangle with an exclamation mark in the center, possible causes include: overheating of the dry dual-clutch transmission clutch, intervention or malfunction of the fuel cutoff system, parking sensor failure, or engine oil pressure sensor malfunction. Below are introductions to other indicator lights with exclamation marks: Tire pressure indicator: When the ignition is turned on, the light will illuminate for a functional test and automatically turn off after a few seconds. If it stays on or flashes, it indicates abnormal tire pressure in one or more tires. Steering system fault indicator: When this light comes on, it may indicate that the electric/mechanical steering mechanism is not working or there's a fault in the steering column lock. Driving should not continue in this case. Brake system fault light: When this light illuminates, it likely indicates a brake system malfunction or low brake fluid level. Drive at low speed, prepare for early braking, and apply greater pedal force. Transmission fault indicator: Visible in vehicles equipped with multitronic transmission. When this light comes on, it indicates an abnormal condition or fault in the transmission.
I've been driving a Volkswagen Tiguan L for ten years and have encountered situations where the triangle exclamation mark warning light comes on. There are generally several common reasons for this. The most common one is low tire pressure. The car is equipped with a tire pressure monitoring system, and if the tire pressure is insufficient, it will flash the light as a reminder. Problems with the braking system can also trigger it, such as severely worn brake pads or low brake fluid levels, which will cause the light to come on. Additionally, issues with the power steering or engine sensors, or electronic component malfunctions, can be the culprit. The Tiguan L owner's manual states that if the light comes on, you should immediately pull over to check and not continue driving. Safety comes first—check if any other warning lights are illuminated on the dashboard or use a tire pressure gauge connected to the cigarette lighter to measure the tire pressure. If the tire pressure is normal, you should promptly visit a 4S store to scan for trouble codes; professional technicians can identify the root cause. During regular maintenance, pay extra attention to tire pressure and the braking system to prevent issues in advance.
