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Why is there an alarm sound when opening the car door after the engine is turned off?

1 Answers

SanIker

07/29/25 11:41am

There is an alarm sound when opening the car door after the engine is turned off because the lights are on, the light switch is not in the automatic position, or the car key is still left inside the vehicle. Below are some precautions regarding the vehicle when the engine is turned off: 1. Turn off the air conditioning: If the air conditioning continues to be used after the engine is turned off, it will greatly affect the battery's lifespan, as the battery power will deplete quickly. Over time, this can lead to battery depletion or difficulty starting the engine. Additionally, using the air conditioning after turning off the engine or not turning it off before shutting down the engine means the engine will start with the air conditioning running, increasing the burden on the engine and reducing its lifespan. 2. Disconnect external devices: After the vehicle is turned off, always remember to disconnect external devices. For example, if there is a dashcam or air purifier in the car, make sure to unplug them after turning off the engine. Otherwise, if the car is not driven for a long time, it will lead to prolonged power consumption, causing battery depletion, and you may need a jump start before the next drive.

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