What is a car tailgate
The tailgate of a car is the door at the rear of the vehicle, usually located above or on the side of the trunk, used to open and close the trunk or cargo compartment. Some models are equipped with an electric function to achieve automatic opening and closing.
Youdaoplaceholder0 basic definition of a car tailgate
The tailgate of a car (also known as the trunk door or rear compartment door) is an important component of the vehicle body structure. Its main function is to enclose the storage space at the rear of the vehicle (such as the trunk or cargo box) and to open and close it mechanically or electrically.
Youdaoplaceholder0 Types and characteristics of tailgates
Youdaoplaceholder0 classified by driving mode .
Youdaoplaceholder0 Manual tailgate : It requires direct manual operation to open and close. It has a simple structure and a relatively low cost.
Youdaoplaceholder0 Electric tailgate : It is automatically opened and closed by a motor-driven shaft rod, supporting button, remote control or sensor control, enhancing convenience.
Youdaoplaceholder0 classified by design form .
Youdaoplaceholder0 hatchback tailgate : Commonly found in hatchbacks, it opens in one piece with the rear windshield, with a large opening that is convenient for loading large items.
Youdaoplaceholder0 double-opening tailgate : Commonly used in luxury cars or off-road vehicles, it splits from the middle to both sides, combining a sense of ceremony with practicality.
Youdaoplaceholder0 The working principle of the electric tailgate
The electric tailgate adds two drive shafts on the basis of the traditional tailgate. It is driven by a motor to move the threaded main shaft and assisted by a spring to complete the opening and closing action. Some models also feature a high memory function, allowing for customizable opening angles.
The function of a car tailgate (trunk) is mainly reflected in three aspects: convenience, safety and functionality
Convenience
Youdaoplaceholder0 Electric opening : It can be automatically opened through a remote key, a button inside the vehicle or a tailgate switch, reducing manual operation.
Youdaoplaceholder0 Height memory : The tailgate opening height can be adjusted, and it will automatically rise to the set position next time.
Youdaoplaceholder0 Anti-pinch and anti-collision : Intelligent sensing of obstacles to prevent vehicle pinching or damage.
Safety
Youdaoplaceholder0 Emergency lock : The tailgate operation can be stopped at any time in case of emergency.
Youdaoplaceholder0 Sound and light alarm : When on/off, it alerts people around through sound and light to prevent scratches.
Youdaoplaceholder0 Escape function : It can be quickly activated in case of an accident to ensure the safety of personnel.
Function expansion
Youdaoplaceholder0 Storage space : It is used to store travel items, vehicle spare parts and tools for emergency repairs.
Youdaoplaceholder0 fuel tank cap emergency switch : Integrates the function of opening the fuel tank cap to enhance vehicle functionality.
Car tailgate malfunctions may be caused by mechanical, electronic or operational issues. The following are common causes and solutions:
The child safety lock is activated
If the car door can only be opened from the outside but fails inside, it might be that the child safety lock on the inner side of the rear door has been accidentally touched. You need to find the child lock device (usually sliding or knob type) on the side of the car door and turn it to the unlock position. [1 Child safety locks cover 70% of failure scenarios). Youdaoplaceholder0.
Lock body/motor failure
If there is no feedback sound when unlocking or the key is difficult to rotate, it may be that the door lock assembly is damaged. The lock core assembly needs to be replaced (the 4S store's quotation is about 800-1,200 yuan per side), involving the disassembly of the door interior panel. A temporary solution can be to try pressing the remote key unlock button rapidly and continuously for five times to activate the emergency mode.
Line problem
If there is abnormal noise when opening and closing the door or the failure rate is high in rainy days, it may be that the wiring harness at the door hinge is broken. The interior panel of the car door needs to be removed to check whether the power supply line of the lock block (usually a white/blue bicolor wire) is conducting. Then, reconnect the wires and install corrugated pipe protection.
Low-temperature freezing
In winter, the sealing strip may freeze, making it impossible to open. For emergency handling, pour 50℃ warm water over the sealing strip area. For long-term prevention, apply silicon-based sealing strip maintenance agent regularly.
Problem with remote control key
If the remote key has insufficient power or is not unlocked, the tailgate cannot be opened. You can try using a mechanical key or replacing the battery (most models require CR2032 button batteries).
Foreign object stuck
If there are foreign objects in the sealing strip or the gap of the car door, they need to be cleaned before attempting to open it. If the problem still cannot be solved, it might be that the lock tongue is stuck or the interlocking mechanism has fallen off. Foreign objects need to be removed and the spring return function checked.
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