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Total NHTSA Complaints
66
Owner filings recorded
#1 Reported Problem
Powertrain & Transmission
15 reports (22.7%)
Crash Incident Reports
0
Zero collision citations
Fire & Injury Reports
0
0 fire • 0 injury filings
Defect Investigation Analysis

Executive Problem Findings

AutoUtility currently tracks 66 official NHTSA owner defect complaints for the 2025 Toyota Grand Highlander. Powertrain & Transmission issues are the most frequently reported category, appearing in 15 complaints (22.7% of submitted records). Zero crashes, fires, injury reports, or fatality reports are cited across these complaint records.

Methodology Notice: Consumer complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Filings are not normalized for sales volume or vehicle mileage and do not constitute an audited component failure rate.
Incident & Severity Profile
  • • Total Owner Reports: 66 complaints submitted under federal penalty.
  • • Primary Subsystem: Powertrain & Transmission accounts for 22.7% of submissions (15 reports).
  • • Secondary Systems: Driver Assistance & Safety Tech (11), Fuel & Propulsion System (9).
  • • Crash Incidents: 0 filings cite an impact or collision.
  • • Thermal Incidents: 0 filings cite smoke or fire.
  • • Reported Casualties: 0 injury filings • 0 fatality filings.
Category Distribution

Reported Defect Categories for 2025 Toyota Grand Highlander

Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records

Powertrain & Transmission
15
22.7%
Driver Assistance & Safety Tech
11
16.7%
Fuel & Propulsion System
9
13.6%
Engine & Cooling
8
12.1%
Body & Structure
8
12.1%
#1 22.7% SHARE

Powertrain & Transmission

15 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
#2 16.7% SHARE

Driver Assistance & Safety Tech

11 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
⚠️ 1 Associated Recall Campaign
#3 13.6% SHARE

Fuel & Propulsion System

9 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
#4 12.1% SHARE

Engine & Cooling

8 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
Federal Oversight

Official NHTSA Defect Investigations (1)

Formal engineering analyses and preliminary evaluations opened by the NHTSA Office of Defects Investigation

ODI Action #DP26006 OPEN Defect Petition (DP)
Opened: 2026-08-20 • Active
Subject / Subsystem
Road debris/rocks damaging the heat exchangers
Affected Component
ENGINE AND ENGINE COOLING:COOLING SYSTEM
Recall Linkage
No direct recall linkage
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 apertures and no protective screen between the grill and the vehicle’s heat exchangers. The Petition further alleges that as a result, during normal driving, the damage to heat exchangers results in coolant leakage and sudden loss of propulsion. The Petitioner cites thirteen (13) complaints received by ODI alleging this failure, which, when added to the petitioner’s own complaint, bring the total under consideration at this time to fourteen (14). ODI will evaluate these complaints to determine if they are related to the failure cited in the Petition and conduct a technical review under 49 CFR Part 552. This Defect Petition is being opened to evaluate whether to grant or deny the petition. The petition can be reviewed at NHTSA.gov under ODI number 11754975.
Consumer Filings

Recent NHTSA Owner Reports for 2025 Toyota Grand Highlander

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Seats & Interior ODI #11760011
Filed: 08/27/2026
Defect Report

"Load cabin wind noise. Service said it was the luggage bars on the roof. I removed the bars and the noise was the same. Came back to the shop on August 22, 2026 they looked and said the panoramic seal was lifting and leaking. Before buying the car we were told the prior issue with panoramic..."

Fuel & Propulsion System ODI #11759845
Filed: 08/26/2026
Defect Report

"I have noticed on several separate occasions a strong gas odor coming from my 2025 Toyota Grand Highlander after I have completed a drive. This has been intermittent, however, yesterday on XXX, the gasoline odor was so strong after I parked my vehicle in my garage, that it quickly filled the garage..."

Driver Assistance & Safety Tech ODI #11759592
Filed: 08/25/2026
Defect Report

"I continuously have issues accelerating from stop in my max hybrid. the issue is particularly worse when it is warm out. I press the gas and the RPMs drop really low and I barely move through the intersection for a few seconds. Once it finally registers after a number of seconds, the RPMs rev up..."

Other / Miscellaneous ODI #11759572
Filed: 08/25/2026
Defect Report

"I have over 30k miles on my car. Over the period that I’ve owned it there have been a few, roughly 6, occasions where I’m trying to change lanes from a stop into quick traffic and my car lags 1-3 seconds in response to me pressing the gas petal. It happens infrequently and is not the normal..."

Other / Miscellaneous ODI #11759369
Filed: 08/25/2026
Defect Report

"on 8/13/2026, I was driving alone on West I-80 right before Park City, Ut; I heard a loud pop and my panoramic sunroof exploded which was really scary. I was not using my sunroof at all, so the cover protected everything on the inside. At first I thought it was a flat tire, but no warning messages..."

Multi-Year Trend

Complaint History for Toyota Grand Highlander

Reported defect complaint volume across sibling model years (2024–2026)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2024 Toyota Grand Highlander 229 6 4 View 2024 Problems →
2025 Toyota Grand Highlander Current Page 66 0 3 Current
2026 Toyota Grand Highlander 0 0 3 View 2026 Problems →
Exhaustive System Audit

Detailed NHTSA Component Breakdown for 2025 Toyota Grand Highlander

Complete distribution of consumer defect reports across all 30 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Injury Entries Fatality Entries
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 17 0 0 0 0
Powertrain NHTSA category: POWER TRAIN 6 0 0 0 0
Structure & Body NHTSA category: STRUCTURE 6 0 0 0 0
Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM 5 0 0 0 0
POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE 3 0 0 0 0
Visibility & Wipers NHTSA category: VISIBILITY/WIPER 3 0 0 0 0
Electrical System NHTSA category: ELECTRICAL SYSTEM 2 0 0 0 0
Engine NHTSA category: ENGINE 2 0 0 0 0
Back Over Prevention / Camera NHTSA category: BACK OVER PREVENTION 1 0 0 0 0
CHILD SEAT 1 0 0 0 0
ELECTRICAL SYSTEM,ENGINE 1 0 0 0 0
ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE,BACK OVER PREVENTION 1 0 0 0 0
ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
LANE DEPARTURE,FORWARD COLLISION AVOIDANCE,BACK OVER PREVENTION 1 0 0 0 0
POWER TRAIN,ENGINE 1 0 0 0 0
POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
POWER TRAIN,UNKNOWN OR OTHER 1 0 0 0 0
POWER TRAIN,VEHICLE SPEED CONTROL 1 0 0 0 0
POWER TRAIN,VEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM 1 0 0 0 0
Seat Belts NHTSA category: SEAT BELTS 1 0 0 0 0
SEATS,UNKNOWN OR OTHER 1 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES 1 0 0 0 0
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
STEERING,LANE DEPARTURE 1 0 0 0 0
STRUCTURE,ENGINE 1 0 0 0 0
SUSPENSION,POWER TRAIN,SEATS 1 0 0 0 0
SUSPENSION,STRUCTURE,UNKNOWN OR OTHER 1 0 0 0 0
Vehicle Speed Control NHTSA category: VEHICLE SPEED CONTROL 1 0 0 0 0
Visibility / Glass NHTSA category: VISIBILITY 1 0 0 0 0
Search Intelligence

Quick Answers: Common Problems & Reliability Questions for the 2025 Toyota Grand Highlander

Direct, deterministic answers synthesized from verified United States government databases for the 2025 Toyota Grand Highlander

What are the most common reported problems with the 2025 Toyota Grand Highlander?

In official NHTSA consumer records, the most frequently cited issue area for the 2025 Toyota Grand Highlander is Powertrain & Transmission, appearing in 15 records (22.7% of submitted filings).

Secondary reported categories include Driver Assistance & Safety Tech (11) and Fuel & Propulsion System (9).

Source: NHTSA Office of Defects Investigation (ODI)

Is the 2025 Toyota Grand Highlander a reliable vehicle?

AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 66 consumer defect complaints and 3 safety recall campaigns for the 2025 Toyota Grand Highlander.

Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.

Source: NHTSA ODI & Safety Recalls Databases

Are there crash, fire, or injury reports associated with the 2025 Toyota Grand Highlander?

Consumer complaint records on file with NHTSA for the 2025 Toyota Grand Highlander cite zero crashes, zero fires, and zero injuries.

Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.

Source: NHTSA Office of Defects Investigation Consumer Logs

Has NHTSA formally investigated defects on the 2025 Toyota Grand Highlander?

NHTSA ODI records list 1 formal defect investigation involving the 2025 Toyota Grand Highlander (1 currently open).

Federal defect investigations are formal engineering evaluations opened when safety defect trends emerge, and do not by themselves establish a confirmed defect or mandatory recall.

Source: NHTSA Office of Defects Investigation Registry
Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.