2025 Toyota Grand Highlander fuel/propulsion system problems
11 owner complaints filed with NHTSA name the fuel/propulsion system on the 2025 Toyota Grand Highlander — 15% of all complaints for this model year.
What owners report
“Our 2025 Toyota Grand Highlander Platinum repeatedly produces a strong gasoline odor and visibly observable vapor under hot-weather/hot-soak conditions. The condition has been observed by dealership personnel. There is footage from us and the dealership. The manufacturer has characterized the…”
filed Sep 14, 2026
“I am experiencing a strong gasoline odor & what appear to be gas vapors coming from the gas cap/filler area of my vehicle. A daily problem. Fumes are consistently present & enter the cabin, when the air conditioning is not on recirculation mode or when doors are opened. I can see and smell it when…”
filed Sep 9, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Grand Highlander years
| Year | Reports | Share |
|---|---|---|
| 2026 Grand Highlander | 3 | 9% |
| 2024 Grand Highlander | 34 | 15% |
Other reported problem areas on the 2025 Toyota Grand Highlander
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.