NHTSA complaint #11761996

Owner complaint summary

I am reporting a severe factory design defect regarding water intrusion into the EVAP emissions system on my 2025 Honda CR-V Hybrid (VIN: [XXX]) After driving home in a normal rainstorm, the vehicle threw diagnostic trouble code P24C0 (EVAP system leak detection pump switching valve stuck ON). The authorized Honda dealership diagnosed the issue as "water intrusion" and charged me an out-of-pocket fee. The dealer's official service invoice explicitly states that the water intrusion occurred from "driving through a puddle." Driving through a standard road puddle or driving in a rainstorm constitutes standard, expected, and necessary vehicle operation. The EVAP canister is a federally mandated emissions component that must legally remain sealed against atmospheric leaks. Because normal road moisture can bypass factory shielding and flood or damage this critical component, it represents a clear engineering and manufacturing defect in sealing and part placement, rather than owner negligence. Honda is systematically denying factory warranty coverage to owners for this specific issue by labeling normal road rain as "outside environmental damage." This leaves drivers facing thousands of dollars in unfair repair bills for a design vulnerability. I am requesting that NHTSA investigate this systemic issue to force a formal safety recall or Technical Service Bulletin (TSB) ensuring retroactive reimbursement and a corrected undercarriage shield design. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)