What does a red exclamation mark in the vehicle mean?

2 Answers
MacLucia
07/29/25 8:34pm
The appearance of an exclamation mark on the car dashboard indicates an abnormality or malfunction in the corresponding system. There are many indicator lights on the car dashboard that feature an exclamation mark, such as the tire pressure indicator, lighting fault indicator, steering system fault indicator, brake system fault light, transmission fault indicator, and wiper fault indicator. Below is a detailed introduction to the exclamation mark warning lights: General Fault: A triangle with an exclamation mark inside. If this symbol lights up, it indicates a fault in the car's general performance, components, or functions. Common issues include parking sensor faults, fuel cutoff system intervention or malfunction, external light faults, engine oil pressure sensor faults, etc. It is necessary to visit a 4S shop for inspection to identify the source of the fault. Automatic Transmission Fault: A yellow gear with an exclamation mark inside. This is the automatic transmission fault warning light, indicating a fault in the transmission or that the transmission lubricant is below the normal range. The transmission oil should be replaced promptly. Brake System Fault: A circle with parentheses and an exclamation mark in the middle. This represents a brake system warning, mainly indicating a brake system fault or low brake fluid level. The brake system should be inspected immediately to avoid accidents. Tire Pressure Abnormality: A horizontal line with parentheses and an exclamation mark below. This represents the tire pressure monitoring warning light, which lights up 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. This is the lighting fault indicator, indicating a fault in one of the car lights. Solution: Visit a 4S shop as soon as possible for inspection and repair, or check it yourself, focusing on commonly used bulbs such as turn signals, fog lights, and interior lights, to identify the problem. In addition, during daily use of the vehicle, the warning lights displayed on the dashboard are divided into two colors, yellow and red, indicating different levels of severity: Yellow indicates a fault in the corresponding system, but the problem is not very serious. Reduce speed and proceed to the nearest repair point for maintenance to eliminate potential safety hazards. Red indicates a very serious problem in the corresponding system. In such cases, do not continue driving. Pull over safely and seek professional help immediately to prevent unpredictable risks to the vehicle and personal safety. It is important to note that when the car is started, all lights will illuminate as the system performs an automatic check. After the check is completed, the lights will turn off automatically. If a light does not illuminate when the ignition is turned on, remains lit, or lights up while driving, it indicates a fault in the related system. In such cases, seek professional help promptly for inspection and repair to eliminate safety hazards.
Was this review help?
12
5
Share
MacCarmen
08/14/25 5:36pm
When I see a red exclamation mark light up on the car dashboard, I immediately become alert because it indicates a serious warning from the vehicle. Possible causes include engine failure, brake system malfunction, battery charging issues, or doors not being properly closed. Once, I noticed it light up while driving on the highway, so I quickly pulled over to check—it turned out to be due to low tire pressure. Safety first: if this happens, find a safe spot to stop, ensure the handbrake is engaged, and then check simple things like whether all doors are securely closed. If everything seems fine, don’t drive too far; head straight to a repair shop to diagnose the specific fault code using diagnostic tools. Delaying action increases the risk of accidents or even damaging car components, and costs can skyrocket, so never take it lightly. Regular maintenance and paying attention to these systems can help prevent unexpected issues.
Was this review help?
5
4
Share
Expand All
More Forum Discussions

What is the full name of Subject 4?

Subject 4, officially known as Subject 4 Theoretical Test or Driver's Theoretical Test, is part of the motor vehicle driver's license assessment. Below are the relevant details: Test Timing for Subject 4: Theoretically, you can schedule the Subject 4 test immediately after passing Subject 3, with no specific waiting period required. However, due to varying local policies, the interval between Subject 3 and Subject 4 may differ. In some regions, you can take Subject 4 right after passing Subject 3, meaning you could complete both tests on the same day. Other areas may require a one-week waiting period before scheduling Subject 4. Test Content for Subject 4: The exam covers safe and civilized driving practices, knowledge of safe driving under adverse weather and complex road conditions, emergency handling procedures such as tire blowouts, and post-accident response measures. Also referred to as the Theoretical Test or Driver's Theory Exam, Subject 4 evaluates 'driving ethics.'
18
5
Share

Is there a safety officer in the car during Subject 2 test?

There is no safety officer in the car during Subject 2 test, only staff members in the testing area. Your score is evaluated by the onboard electronic equipment, and you need to sign the document when you pass the test. Here is a detailed introduction about it: Subject 2, also known as the small road test, is part of the motor vehicle driver's license examination and refers to the field driving skills test. Test items include: stake test, slope fixed-point parking and starting, parallel parking, passing single-plank bridge, curve driving, right-angle turn, passing width-limited gate, passing continuous obstacles, driving on bumpy roads, narrow road U-turn, as well as simulated highway driving, continuous sharp turns on mountain roads, tunnels, rain (fog) weather, slippery roads, and emergency situation handling.
13
4
Share

How to Make Car Windshield Washer Fluid?

Here are the methods for making homemade windshield washer fluid: 1. Spring Windshield Washer Fluid: Prepare a 2.5-liter plastic bottle, 2 liters of purified water, 250ML of 95% medical alcohol, and 1-2 caps of detergent. Mix them thoroughly and it's ready for use. The detergent is mainly for removing sand and dust, while the alcohol accelerates water evaporation, ensuring quick cleaning of the windshield. 2. Summer/Autumn Windshield Washer Fluid: Use a 2.5-liter plastic bottle, 2 liters of purified water, 500ML of 95% medical alcohol, and 1 cap of detergent. The alcohol is very effective in removing insect residue. If you're in the city, you can top up the reservoir with purified water, but it's not recommended to dilute the mixture on highways as it may reduce effectiveness. 3. Winter Windshield Washer Fluid: A mixture of 20% 95-proof alcohol and 80% water has a freezing point around -10°C, suitable for early winter. A mixture of 20-30% alcohol and 60% water has a freezing point of -15°C. A mixture of 40-50% alcohol and 50-60% water can reach a freezing point of -25°C without freezing, meeting most winter needs.
12
4
Share

Can You Stall the Engine in Subject Two?

You only need to complete tasks such as reversing into a garage, parallel parking, stopping on a slope, turning at a right angle, and driving on a curve, then return to the starting point after the assessment. There is no need to stall the engine. Here is an introduction to Subject Two: 1. Introduction One: Subject Two, also known as the small road test, is part of the motor vehicle driver's license assessment and is the abbreviation for the field driving skills test. 2. Introduction Two: The test items include five mandatory tasks: reversing into a garage, parallel parking, stopping on a slope, turning at a right angle, and driving on a curve. Here are the precautions for Subject Two: 1. Introduction One: Do not wear items that obscure your face when taking photos, such as scarves, masks, hats, etc. 2. Introduction Two: When getting into the car, actively show your ID card, adjust the seat, turn on the left turn signal, fasten the seat belt, release the handbrake, and enter the test area only after hearing that the identity verification is successful. 3. Introduction Three: If the vehicle ahead is reversing into a garage, wait outside the arrow until the vehicle ahead moves to parallel parking before starting your test. 4. Introduction Four: For parallel parking, align with the reference point ahead, avoid pressing the solid lines on both sides, and keep the right wheel 20-50 cm away from the garage line. 5. Introduction Five: Wait for the vehicle ahead to exit before entering the curve driving test. If there is a vehicle ahead, wait outside the arrow. 6. Introduction Six: When starting on a slope, do not wait for the computer voice announcement because you must complete the starting action within 30 seconds. Do as you usually practice to ensure a smooth start without stalling or rolling back. 7. Introduction Seven: For turning at a right angle, control the speed carefully—do not go too fast. Align with the reference point, straighten the direction, identify the point ahead, and quickly turn the steering wheel fully to the left.
13
0
Share

Does coasting with the clutch fully depressed damage the clutch?

This is a standard operation. For manual transmission vehicles, braking involves fully depressing the clutch while simultaneously applying the brakes. During this process, there is inevitably a period of coasting, which does not inherently damage the vehicle. However, prolonged coasting in this manner carries certain safety risks. If braking is not intended for stopping, there's no need to depress the clutch—simply apply light brake pressure. Additional information: Reason: When the clutch is fully depressed, the engine and transmission are disconnected, causing the vehicle to lose power. This state imposes no wear on the engine or transmission. Braking in this condition does not harm the vehicle, as the engine and transmission are already disengaged. However, relying solely on the brakes for deceleration without engine braking increases the burden on the braking system over time, potentially compromising driving safety. Precautions: As the vehicle speed decreases, downshift sequentially through gears 6/5/4/3/2/1. Coasting in gear can achieve an average coasting distance of over 80% without fuel injection. This is because the vehicle's inertial force during coasting drives the transmission system and engine in reverse through the wheels. With no operational load, the fuel injection system can cease fuel delivery.
14
5
Share

What is the equivalent of 30 psi in atmospheric pressure?

30 psi is equivalent to 2 standard atmospheric pressures. Hazards of excessive tire pressure: Reduced tire friction and adhesion, affecting braking performance; Causes steering wheel vibration and deviation, reducing driving comfort; Accelerates wear on the central tread pattern, shortening tire lifespan; Increases vehicle vibration, indirectly affecting the lifespan of other components; Overextends tire cords, reducing elasticity and increasing the load on the vehicle during driving; Decreases puncture resistance. Sharp objects like nails or glass can easily penetrate the tire, leading to internal cracks or blowouts. Methods for insufficient tire pressure: If no damage is visible, inflate to normal pressure and reset the tire pressure system; If a puncture is found, promptly drive to a tire shop for repair and reinflation; If the tire pressure warning reappears after inflation without any punctures, it may be due to a leaking wheel rim deformation. Check and replace the rim if necessary.
8
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.