Structure Related Problems of the 2020 Nissan Titan

Body problem

Manufacturing defect: 2020 Nissan Titan roof ditch seam sealer failure. Factory sealer cracked/peeled under roof moldings, allowing heavy rainwater ingress into vehicle cab. Failed warranty remedy: authorized Nissan dealer completed a $0. 00 warranty repair on 12/30/2025 at 36,678 miles. Vehicle purchased used on 01/16/2026 at 36,777 miles (17 days/99 miles post-repair). On 08/12/2026 at 43,133 miles, a certified Nissan facility diagnosed total failure of the previous repair. The factory defect failed again in under 8 months and 6,455 miles. Electrical safety hazard: water channels directly down a/b-pillars onto vital electronic modules, causing severe component short-circuits. Requires complete electronic module/wiring harness replacements. Leaking onto active electrical components poses an imminent risk of sudden dashboard blackouts, complete vehicle stalling while in motion, or short-circuit electrical fires if left unrepaired. Environmental/health hazard: continuous un-remedied flooding can cause rapid, extensive toxic black mold growth throughout the headliner and interior cabin, creating an immediate severe respiratory health hazard for occupants. The prior repair replaced the headliner due to this exact issue. Current status: certified Nissan facility issued a $3,000 estimate, explicitly noting more damages will be found upon teardown. Nissan consumer affairs formally denied coverage because the calendar warranty period recently expired, refusing to honor or correct their own failed, incomplete warranty repair. The manufacturer is leaving a severe, documented safety and health hazard completely unaddressed. Due to continued rain, un-remedied repairs, and refusal from Nissan to help mitigate costs from the failed warranty repair the rust is ongoing. This is a known issue with these trucks and Nissan refuses to issue a recall to help repair the vehicles leaving many owners with costly repair bills and vehicles that are unsafe.