The function of the handle outside the rear door of a car
The main function of the handle outside the rear door of a car is to open and close the door. Some models also have the following functions:
Emergency unlock function
Some models are equipped with hidden mechanical lock cores on the inner side of the door handle. In case of electronic lock failure, the door can be opened manually with a mechanical key to ensure a safe escape in an emergency.
Child safety lock interlocking
There is usually a child lock lever beside the rear door handle. Once it is pulled to the locked position, the car cannot be opened from the inside, preventing children from making accidental operations.
Welcome sensor function
The door handle of the keyless entry vehicle has a sensing area. When approaching, it automatically unlocks, allowing the door to be opened without taking out the key.
Waterproof and drainage design
The bottom of the door handle is equipped with drainage holes. In rainy days, accumulated water can be drained through these small holes to prevent it from seeping into the vehicle or damaging electronic components.
Emergency escape switch
Some models have emergency switches in the trunk or on the inner side of the doors that are linked to the door handles. In case of emergency, they can be quickly unlocked for escape.
It's really worrying to encounter a malfunction of the door handle. Don't worry, . Common causes include lock body/pull wire failure, mechanical jamming or electronic system problems . In most cases, it can be solved by lubrication or replacement of parts.
Common causes of faults
Lock body failure: Wear, rust or damage to the lock body can cause the handle to fail to open the car door normally.
Broken or loose pull wire: If the pull wire between the handle and the lock body breaks, wears out or becomes loose, it will directly affect the unlocking function.
Door jamming: Foreign objects inside the door (such as objects stuck in the window or debris) may impede the handle-pulling action.
Abnormal electronic system: Some vehicle models rely on electronic control. Circuit faults or abnormal control modules can cause the handle to malfunction.
Mechanical failure manifestations
Handle jamming: The handle cannot return to its original position or there is excessive resistance when pulled, which may be caused by deformation of the lock, jamming of the sealing strip or malfunction of the limiter.
Loosening and detachment: Loose fixing screws or aging of connecting parts can cause the handle to become loose or even fall off.
Solution
Lubrication maintenance: Apply lubricant to the stuck parts, clean foreign objects and then test.
Replacement of parts: If the pull wire breaks or the lock body is damaged, parts of the same specification need to be replaced.
Emergency unlocking: Use the in-car emergency unlocking device or unlock manually through the keyhole.
Professional maintenance: When it involves electronic system or complex mechanical faults, it is recommended to contact the 4S store or professional maintenance.
Preventive suggestions
Regularly check whether the handle movement is smooth to avoid long-term jamming.
Avoid external force hitting the car door to reduce the risk of handle deformation.
Replace with original or high-quality parts to ensure compatibility.
The car door handle not opening the door is usually caused by mechanical failure, lock system problem or improper operation setting . It can be solved by checking the central control lock, child lock, lubricating parts or replacing damaged parts. Here are the specific reasons and solutions:
Common causes and troubleshooting steps
Youdaoplaceholder0 The central control lock is not unlocked or there is an electronic system failure .
Phenomenon: There is no resistance when pulling the handle but the car door does not respond. It may be accompanied by abnormal noises from the electronic lock.
Solution: Unlock the car with the key and then re-lock it, or press the central lock button on the driver's side to reset the system.
Youdaoplaceholder0 child lock opened by mistake .
Phenomenon: The inner handle of the rear door cannot be pulled and can only be opened from the outside.
Solution: Check the child lock switch on the side of the car door and use a flat-head screwdriver to turn it to the closed position.
Youdaoplaceholder0 connection mechanism or pull wire fault .
Phenomenon: The handle is loose, jammed or has no sense of linkage when pulled.
Solution
Remove the interior panels of the car door, check if the pull wires are broken or fallen off, and then re-fix or replace them.
Spray screw loosening agent to lubricate the hinges and lock columns and remove dirt.
Youdaoplaceholder0 The lock body or limiter is stuck .
Phenomenon: The handle is heavy or completely impossible to pull, which may be caused by rust or deformation.
Solution: Tap the car door gently to try resetting it. If it is ineffective, professional maintenance personnel need to replace the lock body or the limit switch.
Youdaoplaceholder0 the door trim is stuck in the handle .
Phenomenon: The handle movement is restricted, mostly due to the offset of the interior panel installation.
Solution: Readjust or remove the interior panels to ensure the movement space of the handles.
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