The check engine light is on. We need to find a service station.

发动机检查灯亮了，我们得找一个汽车修理站。

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Similarly, at times, some problems may occur in the system even when there has been no check engine light or trouble code signal.

同样地，有时，有些故障可能在系统中已经产生但并没有“检查发动机”灯或故障码信号显示。

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Perhaps more interestingly, Automatic can also suss out the reason behind a check engine light along with an appropriate course of action.

ENGADGET: Automatic Link connects phone and car for better driving, we go hands-on (video)

Welch likens early screening to the check engine light on a car, occasionally picking up abnormalities that don't affect the vehicle's performance.

CNN: Preventive care not always cost effective, experts say

OK, not that last one, but the program is certainly more differentiating and engaging than a check-engine light, or a postcard from your dealer.

FORBES: BTW. Bttry is LO! PLZ DNT 4get 2 chg 2day! :- ) THNX