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What Causes the Exclamation Mark Light to Illuminate on the Car Dashboard?

2 Answers

MackenzieRose

09/04/25 4:29am

There are three scenarios when an exclamation mark appears on the dashboard: 1. An exclamation mark inside a circle with parentheses: Brake pad damage or insufficient brake fluid. The solution is to release the parking brake and check if the brake fluid is low. If the light remains on, visit a repair shop to replace the brake pads. 2. An exclamation mark inside a triangle: External light malfunction. The solution is to check if any lights are faulty. If the light persists without any issues, it is advisable to visit a repair shop for maintenance. 3. An exclamation mark inside yellow parentheses: Issues with tire pressure in one of the tires. The solution is to check if the tire is punctured or leaking. If not, drive at low speed and find an auto repair shop, car care center, or roadside car wash, as these places usually have air pumps to inflate the tires. After inflation, observe the dashboard. If the warning light still does not turn off, locate the settings on the vehicle's central console and perform another tire pressure check. The light will turn off once the pressure is normal.

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VanHope

09/16/25 5:36am

A few days ago, the exclamation mark light on my car's dashboard came on while I was driving on the highway, which really gave me a scare. Common causes could be low tire pressure, brake system failure, or an engine warning. In my case, it was a low tire pressure alert due to slow rubber expansion in hot weather. Ignoring it could lead to a tire blowout, and brake issues are even more dangerous as they can cause loss of control. I immediately slowed down and pulled over to check, noticing the tire was a bit flat. A quick trip to the repair shop for some air fixed it. I recommend fellow drivers to pull over to a safe spot first when encountering such issues, do a quick check on the tires and brake fluid, and if unsure, head to a professional shop for inspection—safety should never be taken lightly. Regular tire pressure checks can prevent problems before they occur.

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What is the Scrap Age for Non-Operational Sedans Registered to Companies?

For 5-seat family sedans and 7-seat SUVs, as well as small and micro non-operational vehicles, there is no usage age limit. When the normal mileage reaches 600,000 kilometers, the state will guide them to be scrapped. In addition to the above-mentioned vehicles, small and micro non-operational passenger vehicles, large non-operational sedans, and wheeled special machinery vehicles also have no usage age limit. Operational vehicles have scrap age limits, as follows: Small and micro taxi passenger vehicles have a scrap age of 8 years, medium-sized taxi passenger vehicles have a scrap age of 10 years, and large taxi passenger vehicles have a scrap age of 12 years. Public transport passenger vehicles have a scrap age of 13 years, other small and micro operational passenger vehicles have a scrap age of 10 years, and large and medium-sized operational passenger vehicles have a scrap age of 15 years. Micro operational trucks have a scrap age of 8 years, light and large operational trucks have a scrap age of 10 years. The vehicle scrapping process is as follows: The car owner applying for scrapping and renewal must fill out an "Application Form for Vehicle Modification, Transfer, Alteration, Suspension, or Scrapping" and stamp it with the owner's seal. The registration office will accept the application and issue a "Vehicle Scrapping Notice" for vehicles that have reached the scrap age. For vehicles that have not reached the scrap age, after inspection by the vehicle inspection office, if they meet the scrapping standards, a "Vehicle Scrapping Notice" will be issued. The owner can choose a qualified recycling company to dismantle the vehicle with the "Notice". The recycling company will dismantle the vehicle and take photos after verifying the "Notice". The engine must be separated from the vehicle, the engine block must be broken, and the frame (chassis) must be cut. The owner must submit the "Modification Form", "XX Province Vehicle Renewal Technical Appraisal Form", "Scrapped Vehicle Recycling Certificate", and photos of the dismantled vehicle to the vehicle inspection office for verification and signature. The license plates will be reclaimed, and the application will be submitted for approval according to regulations to complete the scrapping registration. Special Notes: According to Article 30 of the "Motor Vehicle Registration Regulations", if the vehicle cannot be driven back to the registration location due to damage, the owner can sell the scrapped vehicle to a local motor vehicle recycling company. If an operational vehicle is converted to a non-operational vehicle, it must be scrapped according to the original operational vehicle's scrapping time. According to Article 43 of the "Motor Vehicle Registration Regulations", after completing the transfer or cancellation of motor vehicle registration, the original owner can apply to use the original license plate number when registering a newly purchased motor vehicle. The application must meet the following conditions: (1) The application must be submitted within six months after the transfer or cancellation of registration; (2) The owner must have owned the original vehicle for more than three years.

How often should the gear oil of a general car be changed?

Generally, the gear oil of a car should be changed every 2 years or 40,000 kilometers. Car gear oil is actually a high-viscosity lubricating oil, primarily composed of petroleum lubricating base oil or synthetic lubricating oil, and blended with extreme pressure anti-wear agents and oiliness agents to form an important lubricating oil. The functions of gear oil are: 1. Lubricating the transmission system, reducing wear on gears and other moving parts, ensuring the normal operation of the transmission system, and extending its service life; 2. Reducing friction and transmission losses outside of gear transmission, improving mechanical efficiency; 3. Preventing corrosion and rust, and reducing gear surface impact and transmission noise.

What are the symptoms of incorrect ignition timing?

Symptoms of incorrect ignition timing include unstable idle and weak acceleration. In severe cases, it may prevent the engine from starting. If the ignition is too late, it can cause difficulty starting or insufficient power. Relevant information is as follows: Too early ignition timing: When starting the car, the engine turns heavily (difficult to start) with a jerking sensation. At idle, the engine shakes and may stall. There is knocking sound during rapid acceleration. After starting, during operation, the engine water temperature is high and often boils. Too late ignition timing: The engine feels sluggish, weak, or even overheats. When suddenly increasing the throttle opening, the engine speed cannot rise accordingly, and fuel consumption increases. During rapid acceleration, the exhaust pipe may sometimes backfire.

How to Turn Off the ECO Light?

To turn off the ECO light, press the SPORT button in the instrument menu settings. The ECO in the car refers to the economic driving mode, which is an English abbreviation. The ECO mode is further divided into active ECO driving mode and non-active ECO driving mode. When the ECO indicator light on the dashboard is illuminated, it indicates that the vehicle's economy mode is activated. Non-active ECO mode does not have a dedicated button; when the ECO indicator light is on, it serves as a reminder function. The ECO system automatically evaluates driving behavior. If the current driving operation achieves the optimal fuel supply, the dashboard will simultaneously display the ECO indicator light.

What Causes Car AC to Frost Up and Stop Cooling?

Car AC frosting up and failing to cool is caused by insufficient refrigerant; excessively dirty condenser; or clogged air filter. The air filter serves three main functions: Providing fresh air: Prevents windshield fogging for clear driver visibility and safer driving; Supplies fresh air to the cabin, protecting occupants from harmful gases and ensuring driving safety; Effectively eliminates bacteria and odors. Ensuring hygiene: Maintains clean cabin air by preventing bacterial growth and effectively filtering out solid particles like dust, pollen, and grinding residues; Blocks pollen to prevent allergic reactions that could compromise driving safety. Adsorbing harmful substances: Removes moisture, soot, ozone, and odors from the air with strong and long-lasting moisture absorption capabilities.

What are the several reasons for a hydraulic cylinder not moving?

Hydraulic cylinder seals are not tight, meaning there is hydraulic oil leakage, resulting in insufficient pressure inside the hydraulic cylinder to overcome the external pressure on the cylinder's piston, causing it not to move. The reasons for a hydraulic cylinder not moving are as follows: Seal leakage: Hydraulic cylinder seals are not tight, meaning there is hydraulic oil leakage, resulting in insufficient pressure inside the hydraulic cylinder to overcome the external pressure on the cylinder's piston, causing it not to move. Insufficient pressure: Internal leakage in the hydraulic oil pump supplying oil to the hydraulic cylinder causes insufficient pressure inside the cylinder. Lack of hydraulic oil: There is no hydraulic oil inside the hydraulic cylinder. Residual air: Residual air inside the hydraulic cylinder that has not been completely purged causes unstable movement of the hydraulic cylinder.

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