What Causes the Electronic Parking Brake to Fail to Engage?

1 Answers
EmmettAnn
07/29/25 3:05am
Electronic parking brake may fail to engage due to not pressing the activation button or a malfunction in the system. Below is relevant information about automotive electronic parking brakes: 1. Principle: Electronic parking brake is a technology that achieves parking braking through electronic control. Its working principle is the same as mechanical handbrakes, both relying on friction generated between brake discs and pads to control parking braking, except the control method has evolved from a mechanical handbrake lever to an electronic button. 2. Function: Electronic parking brakes have expanded from basic parking functions to include automatic hold functions (AUTOHOLD). The application of AUTOHOLD automatic parking technology allows drivers to avoid prolonged braking when the vehicle is stationary. When automatic electronic parking brake is activated, it prevents unnecessary vehicle slippage.
Was this review help?
20
0
Share
More Forum Discussions

What is the emission standard for the 7th generation Camry?

7th generation Camry complies with the China IV emission standard, which generally refers to the National Phase IV Motor Vehicle Pollutant Emission Standard. Taking the 2013 7th generation Camry as an example, here are its specifications: 1. The 7th generation Camry is a mid-size sedan with body dimensions of 4825mm in length, 1825mm in width, 1480mm in height, and a wheelbase of 2775mm. 2. The 7th generation Camry is equipped with a 2.0L engine and a CVT continuously variable transmission. The engine delivers a maximum power of 131kW, a maximum horsepower of 148PS, and a maximum torque of 190Nm.
7
3
Share

Do I need to change tires at 60,000 kilometers?

Generally, tires need to be replaced after 60,000 kilometers. Below are specific details about car tire replacement: 1. The duration for changing car tires depends on the situation. For drivers with good driving habits, tires are typically replaced every 3-5 years or after driving 60,000-80,000 kilometers. If driving under harsh road conditions, such as frequently traveling on gravel roads or experiencing frequent traffic jams, sudden braking, or sharp turns, the replacement interval will be shorter. 2. The main material of tires is rubber, which undergoes natural aging. This is mainly manifested as the tires hardening and the sidewalls developing small cracks. The natural aging period is generally 4-5 years. Tires should be replaced promptly after 5 years to prevent the risk of blowouts. 3. Observe the wear condition of the tires. If the tires are severely worn and the tread patterns are level with the wear indicators, the tires should be replaced. Otherwise, braking on wet or slippery roads will be more difficult, and the vehicle is prone to losing control. Additionally, driving on excessively rough roads increases the risk of blowouts.
10
5
Share

Is There a Conflict Between Mercedes-Benz Column Shifter and Wipers?

There is no conflict between the column shifter and wipers in Mercedes-Benz vehicles. In Mercedes-Benz models equipped with a column shifter, the wiper controls are located on the left side, while the gear shift lever is on the right. The column shifter is very convenient to use, as it frees up space between the driver and front passenger seats, allowing for additional storage. Taking the Mercedes-Benz S-Class as an example, here are its specifications: 1. Powertrain: It is equipped with a total of four engines—a 2.0-liter turbocharged engine, a low-power version 3.0-liter twin-turbocharged engine, a medium-power version 3.0-liter twin-turbocharged engine, and a high-power version 3.0-liter twin-turbocharged engine. All four engines are paired with a 9-speed automatic transmission. 2. Suspension: The front suspension uses a double-wishbone independent suspension, and the rear suspension also uses a double-wishbone independent suspension.
10
3
Share

Is the Land Cruiser Prado the same as the Land Cruiser?

Land Cruiser Prado and Land Cruiser are essentially the same vehicle with different names. The Land Cruiser was later renamed Land Cruiser Prado, which are actually different era names for the same car. The older models are called Land Cruiser, while the newer models are named Land Cruiser Prado. Introduction to Land Cruiser Prado: 1. The Land Cruiser Prado is equipped with a powerful Toyota Dual VVT-i 4.0L V6 engine and a 5-speed automatic transmission, delivering a maximum output of 200 kW and a torque of 380 Nm, featuring a manual part-time four-wheel-drive system. 2. The Land Cruiser Prado can freely switch between 2H, 4H, and 4L driving modes based on road conditions. Comprehensive active safety technologies and passive safety equipment like 6 SRS airbags provide all-around protection for passengers.
15
3
Share

Can Used Cars Be Transferred and Licensed Across Provinces?

Used cars can be transferred and licensed across provinces. The process for transferring a used car from another location involves first completing the transfer and file extraction at the vehicle's current location, then proceeding to register and license the vehicle locally. The detailed process is as follows: Bring the vehicle registration certificate, driving license, and IDs of both parties. If the transfer involves a company, the organization's code certificate, official seal, and the ID of the responsible person are required. Additionally, the vehicle must be brought to the site. After bringing the vehicle to the site, the Price Bureau will first evaluate the vehicle using the vehicle registration certificate and driving license, generating an evaluation report and transaction invoice through their system. The documents are then submitted to the Vehicle Management Office or community service station for inspection and file extraction. During the inspection, any violations or illegal activities related to the vehicle will be checked. Only after confirming the vehicle is in normal condition can the outbound transfer process begin. When processing the outbound transfer, the Vehicle Service Station must submit the relevant documents to the Municipal Vehicle Management Office for review. The file can be extracted after three days. The customer must bring the driving license and other required documents to the service window to complete the outbound file extraction, update the owner information, surrender the old license plate, and receive a temporary license plate and mailing form. After completing the above procedures, the owner can then drive the vehicle to the local Vehicle Management Office to complete the registration and licensing process.
16
0
Share

What is the battery model for BMW key?

The battery model is CR2032. It is a lithium manganese dioxide battery, named according to the IEC standard. Among them: C- indicates a chemical battery system with lithium metal as the negative electrode and manganese dioxide as the positive electrode; R- indicates that the battery is cylindrical in shape, with F used for square batteries; 20 indicates the battery diameter is 20mm; 32 represents the battery height is 3.2mm. The nominal voltage is 3.0V, the endpoint voltage is 2.0V, and the rated capacity is approximately 200mAh. CR2032 typically has a lifespan of 5 years. If the manufacturer's production level is low or quality control is poor, its lifespan can be significantly shortened. Domestic first-tier brand batteries can generally guarantee this lifespan. Under ideal conditions (sealed, room temperature, no moisture, etc.), the lifespan can extend further to 8 years or even 10 years. The usage time of a car remote key battery is closely related to the frequency of use. The more frequently it is used, the shorter the lifespan. If the remote key battery runs out, you can directly use the mechanical key to open and start the vehicle. The batteries used in car remote keys are button batteries, mainly three types: CR2016, CR2025, and CR2032. For the specific model used in each vehicle, owners can refer to the battery model in the user manual for replacement. Button-type CR2016 battery: This is one of the most commonly used remote key batteries. The battery voltage is 3V, while most car key batteries operate at 9V, so all three batteries need to be replaced each time. Examples include brands like Honda, Toyota, Volkswagen, and Mazda. CR2016 specifications: battery diameter 20mm, thickness 1.6mm. Button-type CR2025 battery: Its usage rate is much lower than CR2016, but some car keys still use it. It is thicker than CR2016 but has a relatively higher storage capacity. CR2025 specifications: battery diameter 20mm, thickness 2.5mm. This type of battery is also commonly used in audio remotes. Button-type CR2032 battery: It is twice as thick as CR2016. The 3V-CR2032 lithium manganese battery belongs to the lithium-manganese dioxide structure. The positive electrode material is chemically stable manganese dioxide, the negative electrode is metallic lithium, and the electrolyte is a lithium battery electrolyte. The main components of the electrolyte are dimethoxyethane, propylene carbonate, and lithium perchlorate. It is shaped like a button, hence the name lithium button battery or lithium manganese button battery. Button-type CR2450 battery: Compared to the other three, it is thicker and larger, with a diameter of 24.5mm and a height of 5.0mm. The rated current for CR2450 is 0.2mA, mainly used in low-power electronic products. Generally, these batteries can provide an output current of 0.001mA to 5mA, with a continuous output current of up to 15mA and a pulse output current of up to 30mA, meeting the requirements for light emission, sound, and RF output in most small electronic products.
6
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.