2026 Toyota Grand Highlander defect investigations

Investigations by NHTSA’s Office of Defects Investigation that name the 2026 Toyota Grand Highlander. An investigation is how complaints can become a recall: complaints → investigation → (sometimes) TSB → recall.

• Road debris/rocks damaging the heat exchangers
  Defect Petition DP26006 · opened Aug 20, 2026 · still open

  The Office of Defects Investigation (ODI) received a Petition dated July 20, 2026. The Petition requests an investigation of road debris / rocks damaging the heat exchangers in model year (MY) 2024-2026 Toyota Grand Highlander vehicles. The Petition contends that the Grand Highlander’s front-end grill has large, open a…