Why does the BYD SVS light stay on and the car won't move when shifting gears?

1 Answers
MacJeffrey
07/29/25 4:47pm
BYD SVS light staying on and the car not moving when shifting gears indicates that the engine control unit has detected an error signal from a certain sensor or that it has exceeded the usage standard. When the ignition switch is turned on, the car's SVS indicator light will illuminate for an automatic check and then turn off after a few seconds, which is normal. If it stays on, it indicates a fault in the car's electronic control system. Here is an introduction to the car's electronic control system: 1. Electronic Control Unit (ECU): The core of the control system, it is a microcomputer containing integrated circuits and other precise electronic components. 2. Sensors: Car sensors are located in various positions of the car and their main function is to provide the control system with information about the car's operating conditions, such as engine speed, throttle opening, coolant temperature, etc. 3. Actuators: Devices that perform corresponding actions based on the electrical signals output by the electronic control unit.
Was this review help?
11
3
Share
More Forum Discussions

Is it mandatory to cancel ETC?

It is not mandatory to cancel, but it is recommended that car owners cancel it if they no longer use it. ETC is an electronic toll collection system, also known as an automatic road toll system. It is a road toll method specifically designed for toll roads, commonly seen on highways, bridges or tunnels with toll policies, and certain sections of urban centers to alleviate traffic congestion. The impact of not canceling: According to the regulations of various banks and ETC management departments, a vehicle can only be bound to one ETC. Therefore, if the original ETC is not canceled, a new ETC cannot be processed. If the vehicle is sold to someone else without canceling the ETC and the device remains in the vehicle, the toll station will recognize the ETC device. As long as the original owner's bank card still has a balance, the toll fees will continue to be deducted from the original owner's bank card. The principle of ETC fee deduction: There will be one or more ETC lanes on the highway. Through the dedicated short-range microwave communication between the vehicle's electronic tag installed on the windshield and the microwave antenna in the ETC lane of the toll station, the computer network technology is used to settle accounts with the bank in the background, achieving the purpose of vehicles not needing to stop at toll stations to pay road and bridge fees. All of this is based on the principle of passing first and deducting fees later. The benefits of installing ETC: Time-saving: Eliminates the hassle of waiting in line; Green and environmentally friendly: Low-carbon, vehicles pass through toll stations without stopping, reducing noise and exhaust emissions and minimizing pollution; Reduced wear and tear: Saves costs, reduces the frequency of vehicle starts and brakes, lowers wear and fuel consumption, and users can also enjoy a 5% discount on toll fees; Improved efficiency: The theoretical efficiency of ETC lanes can be increased by 2-3 times, making traditional ETC updates faster and more high-tech. Compared to license plate payment, ETC technology is more mature and advantageous. More policy support: The State Council clearly stated in the "13th Five-Year Plan for the Development of a Modern Comprehensive Transportation System" that "by 2020, the interoperability of transportation cards in key urban clusters will be basically achieved, and the proportion of vehicles equipped with ETC will be significantly increased." It also clearly stated in the main indicators of the "13th Five-Year" comprehensive transportation development that "by 2020, the ETC usage rate of road passenger vehicles will reach 50%." More future possibilities: In addition to continuously improving the convenience of ETC installation and usage and the usage rate of ETC passenger vehicles, the future will also promote the use of ETC for trucks and explore the deep integration of the ETC system with the development directions of smart transportation such as vehicle-to-vehicle communication and vehicle-road coordination, providing car owners with comprehensive travel services. This means that more application scenarios will support ETC applications.
2
5
Share

Detailed Explanation of ETC Installation Position

The ETC installation position for small cars is generally in the upper middle part of the front windshield, while for large vehicles such as trucks and buses, it is installed in the lower middle part. The appropriate installation position should be no lower than 1.2 meters and no higher than 2.5 meters, with an installation angle between 30 to 90 degrees. For vehicles with anti-explosion film or those that have it installed later, it may affect the signal transmission of the microwave communication link, and thus should be installed in the microwave sunroof strip. ETC is the abbreviation of Electronic-Toll-Collection, meaning electronic toll collection system. To apply, the vehicle owner needs to provide original and photocopies of their valid ID card and vehicle registration certificate. If the application is handled by a non-owner, the agent's valid ID card is also required. The photocopy of the vehicle registration certificate should include the page with the most recent annual inspection seal. A bank card for deducting highway tolls is also needed, and the vehicle must be registered under a personal name for individuals aged 18 to 60. Required documents for official vehicles: Introduction letter from the vehicle owner (with official seal); Copy of the organization code certificate or business license (with official seal); Original ID card of the agent; Original vehicle registration certificate; Vehicle that needs to apply for ETC. Here are the precautions for installing ETC: Do not obstruct the view; it is best to install it behind the rearview mirror: Many car models have a large inclination angle of the windshield, which reduces the driver's field of vision. If this is not considered during ETC installation, it will increase the driver's blind spots. Installing it behind the rearview mirror on the right side can avoid obstructing the view. Do not affect charging: The ETC electronic tag consumes power, but generally does not require charging or battery replacement because it has a solar panel on the back that can charge itself. Therefore, during installation, avoid the black areas on the windshield and do not place it where it might block the solar panel. Once installed, do not remove it casually: The button in the middle of the adhesive is an anti-removal lever connected to a switch. After the electronic tag is installed, the windshield will press the anti-removal lever in. If it is removed casually, the anti-removal lever will pop out and trigger the switch, locking the electronic tag and rendering it unusable. You will then need to go to an ETC service point to unlock it. This is designed to prevent multiple vehicles from sharing one device. Things to note when using ETC: The ETC transaction sensing range is 8 meters. To prevent the ETC device of the vehicle in front from malfunctioning, maintain a distance of more than 10 meters from the vehicle in front to avoid automatic sensing and paying for the vehicle in front. The ETC lane recognition speed is 20 kilometers per hour; driving too fast may result in failure to read the vehicle device information and cause payment failure. When using a debit card bound to ETC, insufficient balance may also lead to payment failure.
14
5
Share

What is the meaning of traffic violation code 16372?

Violation code 16372 means: Driving vehicles other than medium-sized or larger passenger or cargo vehicles, school buses, or hazardous material transport vehicles on roads outside of expressways at a speed exceeding the speed limit by 30% but not reaching 50%. According to the relevant provisions of the "Road Traffic Safety Law of the People's Republic of China", the penalty is: Demerit points (deduction): 6 points; Fine amount: 200 yuan; Other penalties: None. Traffic violation codes consist of four to five digits, categorized according to the principles of the traffic law. The order from left to right is: the first digit is the behavior category code, the second digit is the demerit point category code, the third and fourth digits are the sequential code, and the fifth digit is the item number of the clause. First digit: Behavior category code, indicating the classification code in the Road Traffic Law; Second digit: Demerit point category code, indicating the classification code for demerit points of traffic violations; Third, fourth, and fifth digits: Sequential code, indicating the order of the behavior within the same behavior category. For example: 13035—"1" indicates motor vehicle behavior, the second digit "3" indicates a deduction of 3 points, and "035" indicates the fifth item of the third clause in the 3-point deduction category. Behavior category code violation descriptions: Codes starting with "1" indicate motor vehicle traffic, e.g., 1003; Codes starting with "2" indicate non-motor vehicle traffic, e.g., 2002; Codes starting with "3" indicate pedestrian or passenger traffic, e.g., 3030; Codes starting with "4" indicate expressway traffic, e.g., 4002; Codes starting with "5" indicate other regulations, e.g., 5005; Codes starting with "7" indicate implementation rules of provinces, autonomous regions, or municipalities, e.g., 7008; Codes starting with "8" indicate local regulations of cities (regions, autonomous prefectures, or leagues), e.g., 8606. There are four common methods to check motor vehicle violations: Visit the office halls of traffic branches or teams in various districts and counties to inquire through touch-screen terminals; Log in to the external service websites of the public security traffic management bureaus of various cities, find the vehicle violation inquiry section, enter the license plate number and vehicle engine number, and click to inquire; Call the inquiry hotline (area code + 114); Use the Traffic Management 12123 app client (V2.8.1B437 for iOS 15+ or V2.8.1B274 for Android 12+) to inquire. For the violation of driving vehicles other than medium-sized or larger passenger or cargo vehicles, school buses, or hazardous material transport vehicles on roads outside of expressways at a speed exceeding the speed limit by 30% but not reaching 50%, you can handle it through this Traffic Management app client. After logging into the app, enter the violation handling process, complete the handling, and make the payment.
15
3
Share

Does changing the roof color require registration?

Whether registration is required depends on Article 6 of Chapter 2 of the "Road Traffic Safety Law". If the color change area of a motor vehicle does not exceed 30%, no change registration is required. Conversely, if it exceeds 30%, it must be registered and filed, and the registration must be completed within 10 days after the color change. Precautions for vehicle color changes: Before changing the color of a motor vehicle, it is necessary to consult the vehicle management office where the vehicle is registered to determine whether the region allows the use of film wrapping to change the vehicle color. If the region does not support this method, the registration procedure cannot be processed after the color change, and the film must be completely removed to restore the original color of the vehicle. Documents required for applying to change the body color of a motor vehicle: "Motor Vehicle Change Registration Application Form". Original and photocopy of the identity proof of the vehicle owner and agent. Original motor vehicle registration certificate. Original motor vehicle driving license. Payment of all fines before the color change. Additionally, according to the "Motor Vehicle Registration Regulations", owners are no longer required to apply to the vehicle management office in advance. They can first change the vehicle color, install body kits, replace the engine, etc., and then apply for change registration with the vehicle management office. According to Article 10, registered motor vehicles must apply for change registration with the vehicle management office in the following cases: Change of body color. Replacement of the engine. Replacement of the body or frame. Replacement of the entire vehicle due to quality issues. Change of use, such as converting a commercial vehicle to a non-commercial vehicle or vice versa. The vehicle owner's residence moves out of or into the jurisdiction of the vehicle management office. Furthermore, according to Article 15 of the "Road Traffic Safety Law of the People's Republic of China": Police cars, fire trucks, ambulances, and engineering rescue vehicles must display emblem patterns as prescribed and install alarms and emblem lights. Other motor vehicles are prohibited from displaying, installing, or using emblem patterns, alarms, or emblem lights that are exclusive to the aforementioned vehicles or similar to them. Article 56 of the "Motor Vehicle Registration Regulations" states that if the body color is changed without completing the required change registration, the public security traffic management department may issue a warning or impose a fine. The vehicle may also be impounded and required to revert to the original body color.
20
0
Share

What is the sequence for driving and parking an automatic transmission car?

Automatic transmission driving and parking sequence is brake, neutral, handbrake. The following is an introduction to automatic transmission: 1. Introduction: Automatic transmission, as the name suggests, does not require the driver to manually shift gears. 2. Misconceptions: (1) Keeping the car in D gear during long stops: Some owners often only step on the brake pedal when stuck in traffic, keeping the gear lever in D gear without shifting. (2) Coasting in N gear at high speeds or downhill: Some drivers shift the gear lever to N gear (neutral) to save fuel when driving at high speeds or going downhill, which can easily burn out the transmission.
20
4
Share

What audio system is used in the NIO ES8 and ES6?

NIO ES8 and ES6 use audio systems from Suzhou ShangSheng Electronics. NIO is a manufacturer specializing in pure electric vehicles, and all its cars are purely electric. Both the NIO ES6 and ES8 are pure electric SUVs, with strong performance and relatively long driving ranges, making them popular choices among many consumers. Pure electric vehicles fall under the category of new energy vehicles and can use green license plates. In some cities with license plate restrictions, green new energy license plates do not require a lottery, encouraging many consumers to purchase pure electric vehicles under national policies. Pure electric vehicles offer numerous advantages, including zero tailpipe emissions during operation, making them more environmentally friendly.
11
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.