
You can lock the car with windows open. Below are relevant introductions about open windows: Solutions for open windows: Vehicles can be equipped with some safety features, such as automatic window roll-up, which closes the windows automatically after locking the car, or safety driving modules like Car Intelligence. These can effectively detect vibrations or collisions after parking and promptly report them to the owner via SMS. Many car models emit an alarm sound when locked if opened without the remote control. Impact of open windows: It is recommended to close the windows before locking the car to reduce the risk of property loss. Mechanical locking systems (using car keys to lock doors) do not assess the state of the windows, and electronic locks previously did not consider the windows. Now, electronic locks automatically close the windows after locking the doors.

Last time I was in a hurry to park, I forgot to close the window and pressed the lock button directly. The car did lock successfully, but I was on edge all night. After all, locking the car with the windows wide open basically renders the anti-theft function useless—anyone could reach in and open the door. Once after a heavy rain, the interior turned into a fishpond, and repairing the waterlogged seats cost over 800 yuan. Now I’ve developed the habit of walking around the car after locking it to check the tires and windows. Some veteran drivers hang a reminder rope on the door handle to prompt themselves, but the most reliable solution is installing an automatic window closer, which rolls up the windows automatically when locking the car.

Old Man Wang's car is always parked on the roadside in our neighborhood. Once, he left his car unlocked with the windows open for three days. When he returned, not only was the car filled with fallen leaves, but worse, the dashboard had been turned into a toilet by stray cats. Having worked in car repairs for over a decade, I've seen it all—from rainwater leaks causing electrical shorts to cigarette butts thrown inside igniting the seats. While technically all cars can be locked with the windows open, it's highly recommended to close the windows before locking. Most modern vehicles come with a key remote feature to close the windows automatically—just hold the lock button for five seconds. Developing this habit is definitely a hassle-free and safe practice.

Last time I drove my friend's new energy vehicle, I accidentally discovered that when the windows were left open and the car was locked, the APP immediately popped up an alarm notification. This kind of protection is indeed thoughtful, but most traditional models don't have this feature. Simply locking the car doesn't affect the mechanical locking, but the electronic anti-theft system can be compromised. Once at a service area, I forgot to close the sunroof before locking the car, and my navigation mount was stolen. Now I use a window reminder sticker attached to my keychain, so I see it every time I pull out the keys.

A colleague's car was parked outdoors all year round. Once, they left the rear window slightly open for ventilation but forgot to close it properly, and a midnight rainstorm flooded the interior. During repairs, it was discovered that water accumulation on the floor had corroded the wiring, with repair costs equivalent to half a year's fuel expenses. In fact, every car's electrical system is designed to allow locking the car with windows open, but the anti-theft system is virtually useless. Here's a handy tip: after locking the car, pull the door handle to confirm it's locked, and take a moment to check the windows. A $200 auto-lock window-closing module installed at a modification shop is incredibly practical—it automatically closes all four windows the moment the car is locked.

Once when I parked my car at the airport for a business trip, I hastily locked the car and left without fully rolling up the driver's window. Five days later when I returned, I found the GPS in the passenger storage compartment had been stolen. The mechanical lock was properly engaged, but the risk was huge. It's even worse on rainy days, as rainwater can seep into the fuse box along the A-pillar and cause a short circuit. Now I perform a four-step check every time I park: close the windows, turn off the lights, engage the handbrake, and remove the key. After installing an OBD automatic window closer, things have become much easier – the windows automatically close when locking the car, which is really convenient.


