What does a circle with an A and OFF mean on a car?

3 Answers
LaKaden
07/23/25 10:22pm
The A with a circle and OFF on a car stands for AUTO, which means automatic; OFF means off, so together it means the vehicle's auto start-stop function is turned off. Below is some relevant information about the auto start-stop function: 1. The use of the auto start-stop system has certain conditions. It cannot be used when the battery is low, the temperature is too high or too low, the wheels are turning when stopping, the slope is too steep, or the seat belt is not fastened. 2. After turning on the auto start-stop function, simply press the brake pedal while driving. The engine will automatically shut off after the vehicle comes to a complete stop for about two seconds. Keeping the brake pedal pressed will keep the engine in the off state.
Was this review help?
9
2
Share
LeElaina
08/10/25 6:03pm
I ran into my neighbor Uncle Zhang in the neighborhood who also asked about this symbol. A 'A with a circle off' icon suddenly appeared on the dashboard of his newly bought car. Actually, this is the auto start-stop deactivation indicator, where the 'A' stands for Auto Start-Stop. Many cars nowadays come with the start-stop feature, which automatically shuts off the engine at red lights to save fuel. When you press the start-stop deactivation button, this icon will appear on the dashboard, indicating that the auto engine shut-off function has been manually disabled. It's quite handy to turn it off during heavy traffic, otherwise, the engine repeatedly starting up at every stop can be annoying. I remember during last year's heavy rain and flooded roads, this icon was especially useful—if the engine automatically restarted after stalling, it would be troublesome, so turning it off in advance gave peace of mind.
Was this review help?
18
2
Share
Expand All
CarlosAnn
09/23/25 6:12am
I remember when my cousin just got his driver's license, he kept asking about car symbols. That 'A with a circle and off' is the auto start-stop deactivation indicator. After pressing the A-button on the center console, this reminder appears on the dashboard. Its presence is quite practical: turning off start-stop in summer traffic prevents AC weakening from engine shutdown; frequent start-stop on mountain roads also strains the battery. Once when driving my friend's Mercedes on the highway, I noticed significantly reduced body vibration after deactivation. But be careful not to confuse it with the electronic parking brake - this symbol only shows a small 'off' text at the bottom right of the circular icon.
Was this review help?
6
4
Share
Expand All
More Forum Discussions

Where is the chassis number stamped on the Audi A3?

Audi A3 chassis number stamping location: Open the hood, there is a plastic panel above the left front wheel. Lift it up to see the chassis number. Introduction to the chassis number: Also known as the Vehicle Identification Number (VIN), it is a set of seventeen alphanumeric codes that serve as the car's ID. Each vehicle has its own unique chassis number. The letters and numbers in the chassis number represent information such as the vehicle's production region, manufacturer, production year, model, etc. Detailed interpretation of the chassis number: Chassis number positions 1-3 (WMI): WMI World Manufacturer Identifier. The first digit represents the production country and region, while digits 2-3 represent the manufacturer and vehicle type. Chassis number positions 4-9 (VDS): VDS Vehicle Descriptor Section. Digits 4-8 indicate the vehicle's category, series, body type, and engine type, among other details. The ninth digit is the check digit. Chassis number positions 10-17 (VIS): VIS Vehicle Indicator Section. The tenth digit identifies the production year. The eleventh digit is the assembly plant code. Digits 12-17 represent the production sequence number.
18
1
Share

What is the fuel tank capacity of the Scirocco 2.0 in liters?

The fuel tank capacity of the Scirocco 2015 2.0TSI Luxury Edition is 55L. It is equipped with a 2.0L turbocharged engine and a 6-speed wet dual-clutch transmission (DCT). The drivetrain is front-engine, front-wheel drive. The front suspension is a MacPherson strut independent suspension, and the rear suspension is a multi-link independent suspension. Among vehicles in the same class, the BMW Z4 2022 sDrive25i M Sport Package has a fuel tank capacity of 52L, while the Mustang 2021 2.3L EcoBoost has a fuel tank capacity of 58.9L. During actual refueling, the amount of fuel may exceed the calibrated capacity. This is because the fuel tank capacity marked by the manufacturer is measured from the bottom of the tank to the safe fill level. There is additional space from the safe fill level to the tank opening, which is designed to allow for fuel expansion due to temperature increases without causing overflow. If fuel is filled up to the tank opening during refueling, the actual amount of fuel added may exceed the marked tank capacity. To check the remaining fuel level, drivers can observe the fuel gauge on the right side of the instrument panel, which is marked with E (Empty) and F (Full). When the needle is close to E, it indicates low fuel, while proximity to F indicates sufficient fuel.
12
0
Share

Is Foam in the Car Radiator a Normal Phenomenon?

Foam in the car radiator is not a normal phenomenon. Here are the relevant explanations: 1. Causes of bubbles: Under normal circumstances, the cooling system should not have bubbles. The presence of bubbles can impair the coolant's ability to absorb engine heat, leading to a tendency for the water temperature to rise. Bubbles in the radiator coolant may indicate a damaged cylinder head gasket, which requires repair or replacement. 2. Regular coolant replacement: The coolant in the car radiator circulates for long periods, and it is inevitable for various impurities to accumulate, affecting the cooling efficiency. Therefore, it is necessary to regularly replace the coolant according to the schedule specified in the vehicle's manual.
4
4
Share

What Type of Oil Should a Turbocharged Engine Use?

Turbocharged engines should use fully synthetic oil. More information about automotive engine oil is as follows: 1. There are three types of engine oil for vehicles: mineral oil, semi-synthetic oil, and fully synthetic oil. These three types of oil differ in their service intervals and performance. 2. The service interval for mineral oil is 5,000 kilometers; for semi-synthetic oil, it is 6,500 kilometers; and for fully synthetic oil, it is 10,000 kilometers. 3. Fully synthetic oil offers superior high-temperature performance, ensuring better engine protection even when the vehicle is driven in harsh conditions.
2
1
Share

Can I Buy Insurance for My Financed Car in the Second Year?

A financed car's insurance can be purchased independently in the second year. Details are as follows: 1. Insurance guidelines for financed cars: Whether you can choose your own insurance in the second year depends on whether there was an agreement on insurance types when financing the car. If an agreement exists, you may be required to renew with a specified insurer or allowed to choose your own insurer, but must purchase the required coverage types. Without an agreement, you can freely select both the insurer and coverage types. 2. Considerations for car financing: Before purchasing a car on installment, inquire about second-year insurance arrangements in advance to estimate potential insurance costs.
11
3
Share

Should You Turn Off the Engine in Neutral (N) Gear for Automatic Transmission?

You should not turn off the engine in neutral (N) gear for an automatic transmission car. For safety reasons, the car must be shifted into park (P) gear before turning off the engine. The correct method to turn off the engine is: press the brake, shift into N gear, engage the handbrake, release the foot brake, ensure the vehicle does not move, shift into P gear, and then turn off the engine. In fact, both P gear and N gear disconnect the engine from the wheel transmission system. The only difference is that when the engine is off, a car in N gear can be pushed freely, while a car in P gear cannot move. This is because when shifted into P gear, a pawl inside the transmission locks the output shaft, preventing the vehicle from moving.
16
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.