Rear door action
The main functions of the rear door of a car include providing an emergency exit and facilitating passengers to get on and off . The rear door is located above the rear of the vehicle, which not only facilitates passengers to enter and exit the vehicle, but also serves as an escape exit in case of emergency to ensure the safe evacuation of the occupants .
Specific role
emergency escape : in special circumstances, such as when the four doors of the vehicle cannot be opened, the occupants of the vehicle can escape by putting down the rear seat and using the emergency opening device of the rear door .
passenger getting on and off : The rear door design is clever and practical, passengers can easily get on and off through the back door, especially when the vehicle is stopped at the roadside, the back door provides a convenient way .
The way the rear doors of different types of cars open
one-button operation : When the vehicle is locked, the rear door unlock function of the intelligent key can be unlocked by pressing the corresponding button, then pressing the back door open button and lifting it up at the same time, to open the rear door .
direct open : In the unlocked state, directly press the rear door open button and lift up at the same time, the door will automatically open .
The rear door of a car is often called a trunk door, luggage door, or tailgate. It is located in the rear of the car and is mainly used for storing luggage and other items .
Type and design
The type and design of car rear doors vary by model and purpose:
cars : Usually have two rear doors, located on either side of the car body, for easy entry and exit.
commercial vehicle : often adopt side sliding door or hatchback door design, easy for passengers to enter and exit.
truck : The rear door is usually designed with double doors to facilitate loading and unloading.
special vehicle : such as engineering vehicles, fire trucks, etc., according to the special needs of the design of different kinds of rear doors, such as side open, open, and so on .
Historical background and technological development
The design of car rear doors has evolved with the development of the automotive industry. Early car rear doors are mostly simple open-type design, with the increasing demand for safety and convenience, the design of the back door gradually diversified, including side sliding doors, hatchback doors, etc., to adapt to different use scenarios and passenger needs .
Common reasons for car rear door failure include the following :
Child lock enabled : most car rear door is equipped with child lock, the knob is usually on the side of the door, to the lock position, from the car can not open the door, need to unlock the position to open the normal .
central control lock : most models of vehicle speed of 15km/h or more will automatically enable the central control lock, at this time the car can not open the door, the driver needs to close the central control lock or passengers pull the mechanical lock lock .
door lock mechanism failure : long-term use or external impact may cause damage to the lock core, affecting the normal opening of the door .
door stuck : the gap between the door and the door frame is blocked by debris, or the door seal aging and deformation, will lead to the door can not open .
door hinge or hinge deformation : vehicle collision or improper use may cause hinge or hinge deformation, affecting the normal opening of the door .
Door handle fault : internal parts are damaged or fall off, resulting in the inability to open the door .
short circuit of the alarm alarm : Short circuit of the alarm alarm will affect the normal opening of the door. You need to check the circuit .
battery is out : the battery is insufficient or forget to turn off the lights, turn off the engine and listen to the stereo, etc., will also lead to the door can not open .
body line fault : the body line problem may cause the vehicle can not normally receive and execute the command of the remote control .
aging seal strip : the door sealing rubber strip ages and becomes hard, affecting the opening and closing of the door. A new rubber strip needs to be replaced.
The solution :
Check that the child lock is enabled, and if so, turn it to unlock position.
Check the status of the central lock, close the central lock or pull the mechanical lock pin.
Check the car door lock mechanism, handle and other parts are damaged, repair or replace in time.
Ensure that the battery is sufficient, avoid forgetting to turn off the lights, turn off the engine and listen to the stereo.
Check whether the body line is working normally, if necessary, ask professional technicians to repair.
Replace aging seals or parts such as door hinges and hinges.
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