What Causes the Rear Windshield to Shatter for No Reason?

[LaAyla]

The reason for the rear windshield shattering for no apparent reason is due to excessive internal air pressure. Below are relevant details about windshields: Functions of Windshields: They are categorized into laminated glass, tempered glass, and zoned tempered glass. Laminated glass combines the toughness of plastic with the hardness of glass, enhancing the glass's resistance to breakage. Tempered glass, upon impact, shatters into small, blunt-edged fragments, minimizing harm to passengers. Zoned tempered glass undergoes special treatment to maintain some clarity in its cracks when shattered upon impact, ensuring the driver's field of vision remains unobstructed. Maintenance of Windshields: Use windshield washer fluid appropriately. During regular windshield maintenance, select suitable washer fluid based on the season and weather conditions. When the windshield surface appears blurry, cleaning it with the right washer fluid can restore clarity. If the glass reflects light irregularly at night, it can also be wiped with washer fluid. Additionally, during highway driving or in dusty conditions, washer fluid is consumed quickly, so it's important to replenish it promptly.