
Parking a car in a humid garage can indeed cause damage to the vehicle. Here are the specific effects of moisture on the car: 1. Car Audio: If the environment is too humid, it can lead to difficulties in reading CDs, especially affecting the chips inside the car audio system. In a humid environment, these chips become very fragile, resulting in distorted sound output. 2. Spare Tire: To save space, the spare tire is usually placed in a corner and tends to accumulate dust. If the underground garage remains damp and cold for a long time, these corners can become moldy, corroding both the spare tire and the tire-changing tools.

I think parking a car in a damp garage is really not a good idea. Previously, my own car was parked in a windowless garage, and within just a few months, rust started appearing on the body, especially around the door seams and undercarriage, which was particularly noticeable. The battery terminals corroded, and it almost wouldn't start, costing me several hundred dollars in repairs. The interior smelled musty, and black spots appeared on the carpet. So now, I open the windows to ventilate for half an hour every few days and use a fan to circulate the air in the garage, which works well for moisture prevention. Regularly washing the car and letting it dry before parking it back in the garage is also crucial. I recommend not leaving the car in such conditions for too long, otherwise, the repair costs can be very high.

As someone who frequently deals with cars, I've seen many cases where vehicles were ruined due to damp garages. Moisture causes brake pads and discs to rust, leading not only to annoying squeaks but also compromising safety performance. Dampened wire connectors are prone to short circuits—dim lights are the least of your worries, as a potential fire would be disastrous. It's best to cover your car with a protective sheet when parked or place silica gel dehumidifier bags inside to absorb moisture. During annual maintenance, have the mechanic inspect the chassis and electrical systems. These small steps can save you a lot of trouble.

A damp environment can be quite harmful to cars. Moisture causes metal parts to rust quickly, especially the exhaust system and chassis, which age faster. If the garage is too humid, the interior leather may mold and crack, making it uncomfortable to sit in. Most critically, dampness can cause short circuits in key circuit boards, leading to failures in the air conditioning or starting system. I believe maintaining a dry garage is crucial—using a dehumidifier to keep humidity below 50% is effective. This way, the car remains durable.