Legal Analysis of Liability for Vehicle Fires – Interpretation by Shenzhen Lawyers
On January 18, 2025, the Ministry of Public Security website released that the national motor vehicle保有量 reached 453 million, including 353 million cars, and new energy vehicle保有量 reached 31.4 million. At the end of 2024, China's population was 1,408.28 million, averaging one car per four people. During vehicle use, fires often cause severe economic losses or casualties. According to fire department statistics, May to October is the peak period for vehicle spontaneous combustion, with car fires accounting for over 40%, fires occurring while driving accounting for about 70%, and electrical short circuits as the main cause accounting for over 60%. I. Types of vehicle fire accidents: 1. Two-wheel, three-wheel, and four-wheel electric vehicles: (1) On April 16, 2025, Henan Fire public account reported a sudden fire in a household electric four-wheel vehicle in Xiayi County, Shangqiu City, with rescue personnel dispatched immediately. (2) Around 14:00 on May 25, 2025, Nanchang Fire public account reported a low-speed electric vehicle fire under Hongteng Elevated Road in Qingyunpu District, Nanchang, occurring while driving with no casualties, direct economic loss of about 1,100 yuan, cause being electrical fault short circuit, brand Yadea, original battery, purchased within 3 years. (3) On June 3, 2025, Guizhou Fire public account reported 6 electric bicycle fires in May province-wide, including 3 two-wheel, 1 three-wheel, and 2 four-wheel electric bicycles. 2. Fuel vehicle fire accidents: CCTV News reported that the fire incidence rate for new energy vehicles decreased from 1.85 per 10,000 in 2021 to 0.96 per 10,000 in 2023; meanwhile, the fire rate for fuel vehicles was about 1.5 per 10,000. According to the National Fire Rescue Administration, there were 18,360 fuel vehicle spontaneous combustion incidents in Q1 2023, with a fire rate of 0.58 per 10,000 based on 317.71 million fuel vehicles. II. Combustion and spontaneous combustion: 1. Combustion is an exothermic, light-emitting chemical reaction, often with flame, light, and smoke. It requires three conditions: combustible material, oxidizer, and ignition source, known as the "combustion triangle." Combustion types include ignition, spontaneous combustion, flash combustion, and explosion. 2. Spontaneous combustion occurs without external sparks or flames, due to heating or self-heating reactions leading to temperature rise and self-ignition. It includes chemical spontaneous combustion (e.g., matches friction, metal sodium in air) and thermal spontaneous combustion (e.g., preheated mixture auto-ignition). III. Causes of vehicle fires: 1. Electrical system: short circuits, overcurrent, poor contact. 2. Fuel system: leaks of fuel, engine oil, transmission fluid, etc. 3. Exhaust system: high-temperature exhaust contacting combustibles. 4. Brake system: failure or abnormal use causing truck tire fires. 5. Mechanical failure: engine water ingress or defects causing rod breakage and oil leakage. 6. Arson and other factors: intentional fire, embers, fireworks, external ignition. 7. New energy vehicle high-voltage thermal runaway: complex causes including battery, distribution, and high-voltage harness issues like overcharge, overdischarge, internal short circuit, overheating, or external impact, leading to thermal runaway releasing toxic flammable gases. IV. Life-saving skills for owners: 1. Regular maintenance: follow manual for full inspections of circuits, fuel system, mechanical parts; replace aged parts. 2. Avoid unauthorized modifications: use professional shops if needed, ensuring safety. 3. No flammable items inside: remove lighters, perfume, hairspray when leaving. 4. Good driving habits: avoid high load, especially in summer; stop if abnormal smell or smoke. 5. Equip fire extinguisher: carry a qualified one and learn to use it. V. Beware of battery explosion: watch for abnormal current/voltage, battery heat, deformation, electrolyte leakage, or pungent odor. VI. Safety lawyer reminder: Always uphold the safety red line. As President Xi Jinping emphasized, "Human life is paramount; development must never come at the cost of human life, which is an unbreachable red line." Prevent car fires through daily diligence, no侥幸, and regular vehicle maintenance for safe travel.