···
Log in / Register

What does a circle with an exclamation mark on a car indicate?

3 Answers
MacSilas
07/29/25 8:35am
A circle with an exclamation mark appearing on a car refers to the brake warning light, also known as the handbrake warning light. The reasons why the handbrake warning light on the car dashboard illuminates are: 1. The handbrake is not released or not fully released; 2. Severe wear of the brake friction pads; 3. Low brake fluid level; 4. Insufficient or no brake fluid; 5. Damaged connector of the brake fluid sensor. Common indicator lights on the car dashboard include the engine oil indicator, water temperature indicator, handbrake indicator, battery indicator, ABS indicator, seat belt indicator, engine operation status indicator, brake indicator, refueling indicator, airbag indicator, etc.
Was this review help?
16
5
Share
CoraAnn
08/12/25 5:57am
Every time I see that warning light with an exclamation mark inside a circle on the dashboard, I feel a bit nervous because it means the tire pressure might be too low. I've experienced it myself when driving—the light came on before getting on the highway, and it turned out the front tire had a slow leak. This light is called the TPMS warning light, which stands for Tire Pressure Monitoring System. If it lights up, don't ignore it. Find a safe place to pull over as soon as possible and check the pressure of all tires. It's handy to keep a tire pressure gauge in the car, and gas station air pumps work fine too. Don't wait for it to fix itself—low pressure increases tire wear and can even lead to loss of control. Safety first—I recommend checking tire pressure monthly, especially when temperatures fluctuate significantly.
Was this review help?
14
0
Share
Expand All
FinnLynn
10/05/25 7:12am
As a veteran driver with over a decade of experience, when that circle-with-exclamation-point light comes on, I immediately know there's a tire pressure issue. This is a standard warning system in modern vehicles, alerting you to low tire pressure. The causes can vary – maybe a nail puncture causing air leakage or temperature drops reducing pressure. In such cases, the car becomes unstable to drive and fuel consumption increases. My usual approach is to pull over at the nearest safe spot and use the portable pressure gauge to check all tires against the normal range (typically indicated on a label by the door). If pressures are normal but the light persists, it might be a sensor malfunction requiring garage inspection. Remember, abnormal tire pressure increases blowout risks – early intervention saves both hassle and money.
Was this review help?
18
3
Share
Expand All
More Forum Discussions

What does UDS mean?

UDS is a unified diagnostic service, serving as a standard reference protocol for diagnostic services. For example, it specifies what commands should be sent to the ECU to read fault codes or data streams. UDS analyzes current automotive issues, and this protocol is widely used in automotive electronics today. OBD is an industry standard formed around the concept of monitoring real-time vehicle emissions for after-sales purposes, while UDS is a unified specification for diagnostic services. UDS provides a basic framework for diagnostic services, allowing automakers and component suppliers to implement parts of it or customize some private diagnostic services based on actual needs.
19
2
Share

How to Solve Car Jerking?

Car jerking can be resolved by the following methods: 1. Check the temperature of the transmission and the transmission cooling system. 2. Replace the transmission fluid, which should be changed every 2 years or 40,000 kilometers. 3. Inspect the internal valve body of the transmission for any damage that may require replacement. 4. Check the engine valves and intake pipe for carbon buildup that needs cleaning. Below is relevant information: The causes of car jerking include: 1. Engine oil passage blockage. 2. Dirty transmission fluid blocking the oil passages. 3. Damaged transmission solenoid valve. 4. Forgetting to release the handbrake. 5. Irregular wear of the clutch. 6. Damaged solenoid valve. 7. Some engine cylinders not working. 8. Poor-quality fuel with low volatility.
12
1
Share

Which button in the car is the heater button?

To turn on the car heater, press the AUTO button. The heater switch is usually represented by a thermometer icon or buttons with blue and red zones on either side. The red zone indicates heating, while the blue zone indicates cooling. By rotating the knob, the temperature increases in the red zone and decreases in the blue zone. Here's some relevant information: 1. Precautions when using car heating: Avoid directing warm air straight at the head, as prolonged exposure can cause driver fatigue and affect driving safety. 2. The method to quickly raise the interior temperature is: First start the engine for preheating, wait until the engine temperature gauge needle reaches the middle position, then turn on the heating air conditioning. Simultaneously set the air circulation to external circulation to expel cold air from the vehicle. After 2-3 minutes, switch the air circulation to internal circulation.
10
0
Share

What Factors Determine the Ignition Advance Angle?

Engine ignition advance angle is determined by factors such as engine speed, load, and fuel type. The most significant factors affecting the ignition advance are speed and the combustion rate of the air-fuel mixture. The ignition advance angle refers to the spark plug firing before the piston reaches the top dead center of the compression stroke, igniting the combustible air-fuel mixture in the combustion chamber. Below is relevant information: 1. The functions of the ignition advance angle are: (1) Ensuring the energy generated by the combustible air-fuel mixture is effectively utilized. (2) Improving the engine's output power. 2. Methods to verify the ignition advance angle: (1) Start the engine and repeatedly press the accelerator pedal. If the engine feels powerful and there are no abnormal knocking sounds, it indicates the ignition advance angle is appropriate. (2) Increase the engine speed and confirm the ignition advance angle by observing the movement direction of the timing marks.
4
0
Share

Does Sport Mode Damage the Car?

Sport mode does not damage the car. In sport mode, the transmission can shift freely, but the shift timing is delayed. The engine maintains higher RPMs for a longer period, allowing the car to operate at lower gears with higher RPMs for extended durations, thereby delivering greater torque output. Below is relevant information: The correct way to use sport mode is: 1. Shift the gear to D mode, then push the gear lever to the right, and the transmission will enter sport mode first. 2. Use the forward and backward push of the gear lever to shift gears. Pushing forward shifts up, while pushing backward shifts down. 3. To switch back to automatic mode, simply push the gear lever to the left to the D position to complete the shift up or down.
6
5
Share

What is the Difference Between a Filter and a Filter Element?

The differences between a filter and a filter element are as follows: 1. Different functions: The function of a filter is to remove metal particles and impurities from the specialized oil in an air compressor, ensuring the cleanliness of the oil circulation system and protecting the safe operation of the main unit; the function of a filter element is to remove dust and impurities from the air inhaled by the air compressor, ensuring the service life of the oil-gas separation core and the oil. 2. Different filtration methods: Filters use sponge or paper grid filtration; filter elements use ultra-fine fibers or adsorption cotton filtration. A filter refers to an accessory that filters impurities or gases through filter paper. A filter element is used to purify contaminated air to the state required for production or daily life, achieving a certain level of air cleanliness.
16
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.