Is Start-Stop Malfunction a Major Issue for New Cars?

2 Answers
Manuel
07/24/25 3:03am
Start-stop malfunction in cars may be caused by poor wire contact, insufficient battery charge, or low battery temperature. Simply checking the related components can identify the issue, so it is not considered a major problem. Below is an introduction to the car start-stop system: 1. While the start-stop system is paused, the lubricating oil inside the engine continues to circulate, maintaining lubrication within the engine. 2. Even when the start-stop system is activated, if the vehicle remains stationary for too long and causes the AGM battery to be low on charge, the yellow "ECO" light on the right side of the dashboard will illuminate. The vehicle will then automatically stop the start-stop system operation. Once the battery is sufficiently charged, the green "ECO" light will illuminate, and the system will resume operation.
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StAmelia
08/10/25 10:39pm
I've owned several cars, including new models with start-stop systems. After encountering a start-stop malfunction, I initially felt quite worried, but later learned it's not a major issue. The start-stop system primarily aims to save fuel by automatically shutting off the engine at red lights. When it malfunctions, it simply stops working without affecting core driving functions like braking or steering, posing minimal safety concerns. Common causes include low battery charge or temperature sensor issues, especially when the car is new and not yet properly broken in. My suggestion is to first use the vehicle's self-diagnosis mode to check error codes. If the battery is fine, there's nothing to worry about—just have the 4S dealership adjust it during routine maintenance. New drivers shouldn't panic; most issues are fixed for free under warranty or cost just a few hundred bucks, similar to replacing a headlight.
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