A light bar is essentially a bar of LED lights attached to the bumper or roof of the car. These are used to provide extra light, which can be helpful during night drives or areas where good visibility is necessary. In some situations, it is perfectly safe to leave your light bar on the car while going through a car wash, whereas some situations might require you to remove the light bar before going into the car wash. If you have a light bar attached to the car's roof, you need to avoid car washes that have roof-cleaning brushes. These brushes can be extremely harmful to these lights, and you would fare better if you went through a touchless car wash. Touchless car washes only use high-pressure water, which isn't strong enough to harm your light bar. If you have a light bar installed on the bumper of your car, then you can probably use any car wash without the light bar being damaged. In summary, only use touchless car washes if you have a roof light bar; otherwise, you’re good to go!