What breaks most · 2024 to 2026 model years
Toyota Grand Highlander problems by year
Owners have filed 322 safety complaints with NHTSA about the Toyota Grand Highlander across model years 2024 to 2026. One year stands out: 2024 for powertrain and transmission complaints.
- Years to check closely: 2024
- Complaints on file
- 3222024 to 2026, all trims
- Worst year
- 2024226 complaints
- Crashes reported
- 61 fires · 3 injuries · 1 deaths
- Typical failure mileage
- 18kMedian where owners gave mileage
- Recall campaigns
- 9Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 226 | 6 | 4 | Unknown or other (57) | |
| 66 | 0 | 3 | Unknown or other (20) | |
| 30 | 0 | 2 | Unknown or other (10) |
What fails on the 2024 Toyota Grand Highlander
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| Unknown or other | 25% |
57 | 0 | — |
| Powertrain and transmissionTransmission parts | 21% |
47 | 1 | Shop all powertrain and transmission parts, not filtered to this vehicle |
| EngineEngine gaskets and seals | 16% |
37 | 0 | Shop engine parts for the 2024 Toyota Grand Highlander |
| Fuel systemFuel pumps and injectors | 15% |
33 | 0 | Shop all fuel system parts, not filtered to this vehicle |
| Air bags | 13% |
29 | 2 | Check recalls for air bags on NHTSA.gov |
| Speed control and throttleThrottle and pedal sensors | 10% |
23 | 2 | Shop all speed control and throttle parts, not filtered to this vehicle |
| Electrical systemAlternators, starters and ignition | 10% |
22 | 0 | Shop all electrical system parts, not filtered to this vehicle |
| Body and structureDoors, latches and body hardware | 8% |
17 | 1 | Shop all body and structure parts, not filtered to this vehicle |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
-
Vehicle intermittently fails to accelerate when accelerator pedal is depressed after stopping. Vehicle may move extremely slowly for several seconds and then suddenly regain power. This has occurred while entering/intersecting traffic and has resulted in near-collision situations. Dealer cannot duplicate the problem.
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 6, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Toyota Grand Highlander years have the most problems?
By NHTSA complaint volume, 2024 carries the most filings on the Toyota Grand Highlander. The 2024 alone has 226 complaints, led by unknown or other.
What is the most common Toyota Grand Highlander problem?
On the 2024 model year, the most-reported component is unknown or other with 57 complaints. The table above lists the top components for every year.
At what mileage do Toyota Grand Highlander problems start?
The median mileage at failure across all Toyota Grand Highlander complaints that include mileage is about 18,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.