Is It Normal for the Warning Light to Illuminate in a New Car?

1 Answers
StJudah
07/30/25 10:10am
When the ignition switch is turned on, the dashboard indicator lights will illuminate as part of the vehicle's self-diagnostic system. These lights should automatically turn off after a short period. If any of the following warning lights remain on, it indicates a potential system malfunction that requires prompt inspection to avoid safety hazards. Here are the common reasons for warning lights in new cars: 1. Sensor malfunction: This could be due to loose sensor wiring or a faulty sensor that needs inspection or replacement. 2. Engine carbon buildup: Significant carbon deposits in the engine require cleaning. Poor-quality fuel can lead to incomplete combustion, which the emission monitoring system will detect. In such cases, simply refueling with the correct grade of fuel should resolve the issue. It's advisable to promptly visit a repair shop to check the fault codes when a warning light appears, as some problems can only be accurately diagnosed through computer scanning.
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