A Reddit user has sparked confusion after sharing a photo of a mysterious button on their car's ceiling, leaving many drivers puzzled. The button, located near the interior lights, features an icon of a car with both front doors open and the word 'off' beside it.
The car owner posted on the 'What is this' forum, admitting they had no idea what the button did. While some users were equally baffled, others quickly identified it as the control for automatic interior lights. When activated, the lights turn on when a door is opened and off when closed; setting it to 'off' disables this feature.
According to automotive experts, this button is common in modern vehicles, typically found near the driver's dome light or in the rear cabin. It controls interior reading lights, which provide cabin lighting for night driving and illuminate when any door, including the boot, is opened. The lights stay on for a predetermined period after the ignition is switched off, depending on the manufacturer.
One Reddit user commented: 'Those buttons are really frustrating when you accidentally press them... Suddenly your interior lights don't come on.' Another noted they had never seen such a switch despite driving hundreds of cars.
The car owner explained they had checked the manual, but it mentioned a different button for the alarm's motion sensor, not the one in question. This highlights the confusion many drivers face with modern vehicle controls.
