What to Do When a Car Door Lock Freezes?

1 Answers
DiAmy
07/29/25 4:58pm
If a car door lock freezes, you can use a lighter to heat the key, which will help open the frozen lock. Alternatively, you can use Sonax Car Lock Anti-Freeze Lubricant, which also has a preventive effect. Here are some methods to deal with a frozen car lock: 1. Before washing the car, it's best to cover the keyhole with tape to prevent water from entering. Using a computer-controlled car wash machine, which produces even water mist, reduces the chance of the key freezing. 2. If hot water is available, pour it over the frozen lock. After the ice melts, ensure to remove any remaining water inside the lock cylinder to prevent refreezing. 3. Heat the key and slowly insert it into the lock cylinder. Be very careful when heating the key—avoid overheating it, as this may cause unnecessary damage. If the lock is frozen, you can park the car in a slightly warmer place, such as a basement or garage, and the lock will naturally unfreeze in about ten minutes.
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