Undercarriage wash is a self built feature that is likely to damage the interior sidewalls of your tires. The owners will deny any responsibility for damage. $650.00 worth of tire damage.
August 2020
It did a fine job on a brown car that was white from a gravel parking lot
March 2020
Exit door opened twice while automatic wash was still in process. After wash was completed, I could hear the blowers running but the exit door didn't open. By the time I got out of my vehicle and found a button to open it, the blowers stopped?. The vehicle behind me backed away and left.