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Why does a Toyota vehicle automatically sound the alarm?

1 Answers

DeTimothy

08/30/25 4:21am

Toyota vehicle automatic alarm may be caused by unfastened seat belts, unclosed doors, abnormal low-pressure buzzing, or overheating water temperature. The specific reasons for Toyota vehicle automatic alarm are as follows: Unfastened seat belts: The driver did not fasten the seat belt after getting into the vehicle. Unclosed doors: When the vehicle is stationary, the door open signal triggers the indicator light to illuminate. During driving, if the door open signal is triggered, the indicator light stays on continuously, and the buzzer alarms. Abnormal low-pressure buzzing: (For air brake models) The low-pressure buzzer for air brakes keeps sounding. Under normal conditions, the pressure indicated on the pressure gauge should not be lower than 600 kPa. When the engine is running at 75% of the rated power speed, the indicated pressure on the pressure gauge should rise from zero to the starting pressure (400 kPa) within 4 minutes, and the low-pressure alarm buzzer should stop alarming. Overheating water temperature: The overheating water temperature alarm buzzer sounds intermittently, beeping for 0.5 seconds and pausing for 0.5 seconds. Note the priority: the low-pressure alarm buzzer sounds first, followed by the overheating water temperature alarm buzzer.

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