What Happens When a Car is Struck by Lightning?
3 Answers
When a car is struck by lightning, the instantaneous high voltage may damage the electronic components inside the vehicle, causing the electronic devices to malfunction. A car struck by lightning will show burn marks at the point of impact, and the electrical appliances and related parts inside may be damaged. In severe cases, it can even lead to spontaneous combustion. If your car is struck by lightning while driving, there is no need to panic. Cars are equipped with lightning protection features. After being struck, you should find a safe place to pull over and avoid exiting the vehicle hastily. Once the rain stops, promptly inspect the car's condition. Here is an introduction to the related content: 1. Faraday Cage: The metal shell of the car provides excellent protection for its interior, shielding it completely from external electric field changes, making the car immune to lightning strikes. People inside the car are very safe. 2. Lightning Damage: A car struck by lightning can still suffer significant damage. When lightning strikes a car, the instantaneous high voltage is likely to damage the electronic components inside, causing the electrical devices to malfunction. In severe cases, it can even result in a fire.
I once encountered a thunderstorm while driving in the mountains, and the moment my car was struck by lightning, it felt like being hit by a giant hammer—the entire vehicle shook violently. But you don’t need to worry about personal safety; the metal body channels the current into the ground. The only downside was my ears ringing from the thunder. The biggest headache was all the electronic devices getting fried—my central control screen went black instantly, and the tire pressure monitoring system failed. Later, the repair shop told me the intense heat from the lightning also melted some wiring connectors, and even punctured a small hole in one tire from the electrical discharge. For such incidents, it’s best to file an insurance claim immediately and remember to get a thunderstorm certificate from the meteorological bureau—otherwise, the insurance company might give you the runaround. The repairs cost over 30,000 yuan, but what hurt the most was losing all the travel photos stored in the car’s computer.
Our physics teacher explained this phenomenon: a car is essentially a moving Faraday cage. The electric current flows along the metal exterior without harming the occupants inside. However, protruding parts like the roof antenna and rearview mirrors may melt—I once saw a lightning-struck car with its rearview mirror fused into a lump of metal. The most vulnerable components are the electronic systems, especially the battery management systems in new energy vehicles. The million-volt surge from a lightning strike can cause sensors to fail collectively. There are documented cases where lightning has punctured tire rubber, leading to deflation, or melted window seals. If you ever encounter this situation, remember not to touch any metal parts inside the car. Park in a safe location and immediately contact a tow truck, then wait for professionals to inspect the chassis grounding system.
