NHTSA Complaint #11712459 — 2018 TESLA MODEL X

Water entered the passenger cabin of my vehicle during normal rain exposure while the vehicle was parked overnight. The failure occurred at the roof glass/seal system, allowing rainwater to intrude into the interior behind the second-row seating area and soak the carpet and underlying padding. This resulted in persistent moisture and a strong musty odor inside the cabin, consistent with microbial growth and mold risk. The condition affects interior air quality and poses a potential health risk to vehicle occupants, particularly children or passengers seated in the rear. Prolonged moisture inside the cabin also raises safety concerns related to corrosion and possible impact to electrical components, sensors, and restraint systems routed through the interior floor area. The condition substantially impairs safe and normal vehicle use. The presence of moisture and microbial odor makes the vehicle unsuitable for passenger transport and creates uncertainty regarding the integrity of interior and electrical systems. The issue was inspected and confirmed by the manufacturer’s authorized service center. The service center documented that water intrusion occurred through failed or missing sealant around the roof/door glass assembly and confirmed saturation of interior carpet and padding. The manufacturer recommended replacement of interior padding for safety reasons but declined responsibility due to the vehicle being outside the basic warranty period. There were no warning lamps or messages prior to discovery. The issue was identified after rain exposure when wet carpet and odor were observed. The problem is reproducible under rain conditions. The vehicle is available for inspection upon request.