What to Do When a Car Door Lock Freezes?

2 Answers
DePaisley
07/24/25 10:35am
Solutions for a frozen car door lock include: 1. Pouring water around 60 degrees Celsius along the edge of the car door; 2. Using a hairdryer set to warm air to blow on the frozen area. Car doors provide access for drivers and passengers, isolate external disturbances, and to some extent, reduce side impacts to protect occupants. The design requirements for car doors are: 1. Ensuring ease of entry and exit for passengers, with an opening angle controlled between 65 to 70 degrees; 2. No positional interference with other parts during the opening process; 3. Reliable locking when closed, preventing self-opening while driving; 4. Good sealing performance; 5. Large transparent area to meet lateral visibility requirements; 6. Sufficient strength and rigidity to ensure reliable door operation, reduce door vibrations, enhance side collision safety, and prevent door sagging.
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SamanthaDella
08/11/25 5:40am
I often drive in extremely cold areas and have seen the issue of frozen door locks too many times. It's mainly because moisture in the air enters the lock cylinder and freezes. When solving this issue, never force the door open or pour boiling water on it, as this can easily damage the door lock or plastic parts. Simple solutions include spraying commercial de-icing spray into the keyhole a few times, and it will melt; or dipping the key in alcohol or vinegar and wiping it, which can quickly melt the ice without harming the car. Prevention is crucial—apply anti-freeze lubricant to the lock cylinder before autumn, and in winter, park in an indoor garage or use a windproof car cover to reduce moisture condensation. Safety reminder: if the ice is too thick to open, wait for the car's heater to raise the temperature for natural thawing, or call professional auto repair for help. In short, a little maintenance can avoid big troubles.
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