Browse

Property For Sale Property For Rent

Used Cars Others

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Others Pet Supplies Sporting Goods Ticket Toys Games Transportation

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Vehicle rentals Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

···

Log in / Register

What Does EV Function Restricted Mean?

3 Answers

RiverLee

07/29/25 11:26am

EV function restricted generally indicates a failure in the vehicle's high-voltage system. When this issue occurs, it is essential to promptly visit a repair shop or 4S store for professional maintenance to avoid unnecessary trouble during vehicle use. The EV function restriction may be caused by the following reasons: 1: Battery Management System (BMS) module failure. A malfunction in the BMS module can limit battery power output, triggering the "EV function restricted" warning on the dashboard. Technicians use specialized automotive diagnostic tools to read BMS module data and determine if it is faulty. 2: Drive motor failure. A malfunction in the drive motor can also trigger system errors, resulting in the "EV function restricted" warning. Technicians use diagnostic tools to analyze drive motor data and assess whether the motor is faulty. 3: Battery overheating protection. Frequent rapid acceleration during driving can cause the battery to overheat and enter protection mode, limiting power output and displaying the "EV function restricted" warning on the dashboard.

Was this review help?

20

2

Share

DawsonMarie

08/13/25 7:00pm

I've encountered this situation before. The most common cause of EV power limitation is the battery management system triggering protection. If you've been driving aggressively recently, the battery temperature gets too high and it automatically reduces power output – this happens most often in summer. Also, when the charge drops below 20%, many vehicles will limit speed to force you to recharge. Oh, and in winter when the car's been frozen overnight, it's prone to power limitations when starting the next morning – I always activate the battery preheating function in advance. Other causes could be poor contact in high-voltage wiring harnesses or individual battery cell failures. My suggestion is to first turn off the vehicle for ten minutes to let the system reset. If that doesn't work, go get your battery health checked immediately.

Was this review help?

16

0

Share

Expand All

LaMason

10/08/25 4:22am

After repairing new energy vehicles for so many years, EV power limitations are mostly caused by high-voltage system issues. Loose or damp high-voltage connectors can trigger safety protection, leading to power restrictions in the entire powertrain. The last vehicle I worked on had a false alarm from the charging port temperature sensor—the system thought it was on fire and directly locked the functions. Some owners modify their audio systems and mess with the wiring, causing the 12V battery to drain and indirectly affecting the main controller. To properly address these issues, you need to connect a diagnostic tool to read the fault codes. Never attempt to disassemble high-voltage components yourself, as the voltage exceeds 400 volts.

Was this review help?

18

1

Share

Expand All

More Forum Discussions

How to Collect Evidence for Accidents Caused by High Beams?

Evidence can be obtained from surveillance or dashcam footage. Below are more relevant details regarding high beam evidence collection: 1. Drivers affected by high beams should provide dashcam video proving they were dazzled. 2. Based on dashcam recordings, all oncoming vehicles within 10 minutes prior to the accident can be listed as defendants. All defendants within this timeframe bear the burden of proof (referencing the reversed burden of proof principle in high-altitude object throwing cases). 3. If oncoming vehicles during this period cannot prove they weren't using high beams, they share joint liability for the accident.

What are the requirements for a test drive at a 4S store?

You need a driver's license, and generally, you must have at least one year of driving experience to test drive. A test drive is an indispensable part of the car-buying process. If this step is missing, it is essential to arrange a proper test drive. Make sure to schedule an appointment with the 4S store staff in advance to avoid delays if test drives are unavailable upon arrival. Below are more related details: Precautions: 1. Familiarize yourself with the car's interior after getting in: Whether you are familiar with the car or not, it's important to thoroughly understand the vehicle's features once inside. 2. Check if the equipment is functioning properly after ignition: After starting the engine, verify that all in-car equipment operates normally. If any abnormalities are detected, report them to the salesperson immediately or request to switch to another car. 3. Test the brakes for responsiveness: After starting the car, check if the brakes are sensitive. This ensures you are aware of the braking performance while driving, helping to avoid potential safety hazards. 4. Evaluate the car's acceleration performance: During the test drive, pay attention to the car's acceleration, especially when overtaking, to assess the engine's power output.

How Does the Insurance Company Handle a Totaled New Car?

If a new car is totaled in an accident, the insurance company handles it as follows: 1. According to the "Regulations on Compulsory Traffic Accident Liability Insurance for Motor Vehicles": Under any of the following circumstances, the insurance company shall advance the rescue expenses within the liability limit of the compulsory traffic accident liability insurance and has the right to recover from the person causing the harm: The driver does not have a driving license or is drunk; The insured motor vehicle is involved in an accident during theft or robbery; The insured intentionally causes a road traffic accident. If any of the first two circumstances occurs and causes property loss to the victim in a road traffic accident, the insurance company shall not be liable for compensation. 2. If the insurance company follows this regulation: It can indeed refuse to compensate if the driver intentionally hits and injures someone, but given that the compulsory traffic accident liability insurance is a system centered on protecting and rescuing lives, its purpose is to protect the injured third party, not to maintain the financial balance between the insurer and the insured.

Is the Mid-Autumn Festival toll-free on highways?

Highway tolls are not waived during the Mid-Autumn Festival. According to the "Implementation Plan for Exempting Small Passenger Vehicles from Toll Fees on Major Holidays" issued by the state: The holidays eligible for free highway access are limited to four national statutory holidays—Spring Festival, Qingming Festival, Labor Day, and National Day. The Mid-Autumn Festival is not included in the list of toll-free holidays on highways. The positive effects of toll-free highways during major holidays are as follows: 1. Facilitates the deepening of reforms in the transportation industry: The implementation of the toll-free highway policy during holidays represents a bold attempt in the reform of the transportation system. This policy can be seen as a signal for the reform of transportation mechanisms, a return to the essential public service function of highways, and a breakthrough in establishing new management and service relationships within the highway industry. 2. Optimizes resource allocation in the transportation sector: This policy significantly improves highway traffic efficiency, reduces costs for passenger transport and tourism travel, and further promotes the rational allocation of transportation resources. As a result, the service function of highways becomes more prominent. 3. Promotes the transformation of development modes in the transportation industry: With the rapid development of China's highway construction and the transformation and upgrading of the economic structure, transportation, as a fundamental industry and service sector for economic development, urgently needs to accelerate the transformation of its development modes. This is of great significance for promoting the modernization and sustainable development of transportation.

What does the SN after the engine oil represent?

SN indicates that in the "S" series, it represents gasoline engine oil and ranks in the N category. The "S" series represents gasoline engine oil, with specifications generally ranging from SA to SN (in alphabetical order, excluding SI). Each subsequent letter indicates improved performance over the previous one, with more additives included to protect the engine. Below is a related introduction to automotive engine oil. 1. Automotive engine oil grades: The "S" prefix denotes gasoline engine oil, with the following letters ranging from A, B, C, D, to N. The higher the letter, the higher the grade. Currently, the market typically offers grades above SG, including SG, SJ, SL, SM, and SN. Vehicles with lower engine technology, such as microcars or older models like the Jetta, can use SG-grade oil. SL offers the best anti-wear performance, while SM/SN usually incorporates special formulations for environmental considerations. 2. Automotive engine oil classification: Automotive engine oil is specifically classified into 4 types for summer use, 6 types for winter use, and 16 types for all-season use. Summer oils are labeled as 20, 30, 40, and 50, with higher numbers indicating greater viscosity and suitability for higher temperatures. Winter oils are labeled as 0W, 5W, 10W, 15W, 20W, and 25W, where "W" stands for Winter. The smaller the number before "W," the lower the low-temperature viscosity and the better the low-temperature fluidity, making it suitable for lower temperatures. All-season oils are labeled as 5W-20, 5W-30, 5W-40, 5W-50, 10W-20, 10W-30, 10W-40, 10W-50, 15W-20, 15W-30, 15W-40, 15W-50, 20W-20, 20W-30, 20W-40, and 20W-50. The smaller the number representing the winter part, and the larger the number representing the summer part, the higher the viscosity and the broader the applicable temperature range.

Is R the Reverse Gear?

R stands for reverse. It is the abbreviation of the English word 'reverse', meaning the reverse gear in Chinese. This applies to both manual and automatic transmission vehicles. Below is more related information: The working principle of the R gear is: when the R gear is engaged, the hydraulic system's reverse gear circuit is activated, causing the drive wheels to rotate in reverse, enabling the vehicle to move backward. The reverse gear is used to move the vehicle backward, with the direction of travel opposite to that of the forward gears. In a five-speed manual transmission, the reverse gear is usually positioned below the fifth gear, while in a six-speed transmission, it is often set as an independent gear area. This design helps to minimize the risk of accidentally engaging the reverse gear while the vehicle is moving forward. Automatic transmission vehicles typically have six gear positions, arranged from top to bottom as: P, R, N, D, S, L. Driving an automatic vehicle generally requires only the use of the parking gear (P), reverse gear (R), neutral gear (N), and drive gear (D) for normal driving needs. However, in certain special driving conditions, other functional gears may be required.

Trending Ranking

Where is the sunroof switch for the BMW 320i located?

How to Measure the Throttle Position Sensor?

Should the car door be replaced if it is dented?

What does the battery model number represent?

Where is the installation position of the child seat?

What to Do When ETC is Disabled?

How often should the transmission fluid be changed for Volkswagen Golf 6?

Are Car Air Purifiers Effective?

What does 'set' mean in a sedan?

Is the Subject 1 Appointment Time Flexible?

More Forum Discussions

Why Does the Rear Axle of a Van Make a Humming Sound?

How many people can an Iveco accommodate?

What is the difference between 652t and 653t?

What causes the brake to suddenly become hard and unresponsive while driving?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.