Toyota Grand Highlander electrical system problems by year
28 NHTSA owner complaints name the electrical system across 3 Grand Highlander model years. The most reported year is 2024 with 22 reports.
| Year | Electrical System reports | Share | Median mileage | |
|---|---|---|---|---|
| 2026 Grand Highlander | 1 | 3% | — | |
| 2025 Grand Highlander | 5 | 7% | — | |
| 2024 Grand Highlander | 22 | 10% | — |
Share is the fraction of that year’s complaints naming the electrical system. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.