A:Answer Hello!
That's odd, while it is possible that the night vision may be getting engaged it should not persist during the day. Please note that for the inside cabin camera it may appear as purple-ish but this due to the night vision being used with the normal camera to ensure clarity during the day and night. If you need further assistance, please do not hesitate to contact us: https://www.rexingusa.com/support/contact-us/