How to Remove Snow From Car Without Scratching by using engine heat? If the door is frozen by snow-ice accumulation, first need to pour warm water on the lock. After that, you will be trying to insert your key. you can also pour warm water onto your car handle. it will loose the ice accumulation. then you need to pull the door open. https://cleanerblog.com/how-to-remove-snow-from-car-without-scratching/