The parking button indicator light not turning on is usually caused by multiple factors. First, check whether the power supply is normal, as abnormal voltage or poor contact may cause the indicator light to go out. Second, pay attention to whether the button’s wiring harness is damaged—aging or disconnected wires can affect power supply. In addition, foreign objects or accumulated dust inside the button may also prevent the indicator light from working properly.

To address these issues, start by checking the wiring to ensure there are no loose or broken connections; then test the wiring harness and replace it promptly if problems are found. If dust accumulation is the cause, use an appropriate cleaner to gently clean the button surface and surrounding area. Finally, if the above methods fail, consider resetting the parking button module. In some cases, professional technicians may be required to diagnose and repair the fault.