Why Would a New Car's Warning Light Come On?

[LandonRose]

Reasons why a new car's warning light may come on: 1. The engine combustion state is not optimal; 2. Engine malfunction, such as lack of power, excessive engine noise, or noticeable knocking sounds; 3. Ignition system failure, possibly due to incorrect ignition timing; 4. Poor fuel quality, leading to unclean engine cylinders and accumulated carbon deposits; 5. Insufficient engine coolant causing overheating or a faulty coolant temperature sensor. If the warning light in a new car comes on, you can visit a 4S dealership to diagnose the issue by reading the fault codes with specialized equipment. Repairs or replacements can be done free of charge if the car is still under warranty.