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Total NHTSA Complaints
229
Owner filings recorded
#1 Reported Problem
Powertrain & Transmission
48 reports (21%)
Crash Incident Reports
6
Filings citing a crash
Fire & Injury Reports
4
1 fire • 3 injury filings
Defect Investigation Analysis

Executive Problem Findings

AutoUtility currently tracks 229 official NHTSA owner defect complaints for the 2024 Toyota Grand Highlander. Powertrain & Transmission issues are the most frequently reported category, appearing in 48 complaints (21% of submitted records). Among these NHTSA complaint records, 6 filings cite a crash, 1 cites a fire, 3 report one or more injuries, 1 reports one or more fatalities.

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: 229 complaints submitted under federal penalty.
  • • Primary Subsystem: Powertrain & Transmission accounts for 21% of submissions (48 reports).
  • • Secondary Systems: Driver Assistance & Safety Tech (39), Fuel & Propulsion System (35).
  • • Crash Incidents: 6 filings cite an impact or collision.
  • • Thermal Incidents: 1 filings cite smoke or fire.
  • • Reported Casualties: 3 injury filings • 1 fatality filings.
Category Distribution

Reported Defect Categories for 2024 Toyota Grand Highlander

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

Powertrain & Transmission
48
21%
Driver Assistance & Safety Tech
39
17%
Fuel & Propulsion System
35
15.3%
Air Bags & Restraints
33
14.4%
Engine & Cooling
27
11.8%
#1 21% SHARE

Powertrain & Transmission

48 owner complaints submitted to NHTSA ODI for this subsystem.

⚠️ 1 Crash 🩹 1 Injury
#2 17% SHARE

Driver Assistance & Safety Tech

39 owner complaints submitted to NHTSA ODI for this subsystem.

⚠️ 4 Crash 🩹 1 Injury
⚠️ 1 Associated Recall Campaign
#3 15.3% SHARE

Fuel & Propulsion System

35 owner complaints submitted to NHTSA ODI for this subsystem.

✓ 0 Incidents
#4 14.4% SHARE

Air Bags & Restraints

33 owner complaints submitted to NHTSA ODI for this subsystem.

⚠️ 2 Crash 🩹 1 Injury
⚠️ 1 Associated Recall Campaign
Deterministic Text Analysis

Recurring Symptoms Identified in Owner Reports

Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis

Powertrain & Transmission 5.7%

Loss of Motive Power While Driving

13 complaint narratives describe this symptom.

NHTSA Narrative Match
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 2024 Toyota Grand Highlander

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

Other / Miscellaneous ODI #11759777
Filed: 08/26/2026
Defect Report

"A/C condenser damaged and broken caused by open grill design."

Other / Miscellaneous ODI #11759636
Filed: 08/26/2026
Defect Report

"Multiple times a week in the summer my car will hesitate to go once I have stopped at a stop sign/busy four way intersection. When I push the gas the car doesn’t respond and hesitates for a long while before I can get the car to start moving again. The car will roll into the intersection after I..."

Fuel & Propulsion System ODI #11759577
Filed: 08/25/2026
Defect Report

"The car stalled on entering secondary roads from my own neighborhood. When it happens, I have pressed the throttle and the car stops moving forward. It takes 5-10 seconds before the engine picks up and the car moves. The first owner found the same thing and now as the second owner, it has done the..."

Driver Assistance & Safety Tech ODI #11759560
Filed: 08/25/2026
Defect Report

"Sometimes, when trying to accelerate in certain situations, the vehicle accelerator pedal will not respond or the engine stutters and won't immediately respond to input and the vehicle seems to stall. This has been scary several times in traffic. The vehicle originally would throw an engine code on..."

Other / Miscellaneous ODI #11759554
Filed: 08/25/2026
Defect Report

"My coolant evaporates . I think a tick hit through grill and damaged the heat exchanger. I have to fill the coolant monthly"

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 Current Page 229 6 4 Current
2025 Toyota Grand Highlander 66 0 3 View 2025 Problems →
2026 Toyota Grand Highlander 0 0 3 View 2026 Problems →
Exhaustive System Audit

Detailed NHTSA Component Breakdown for 2024 Toyota Grand Highlander

Complete distribution of consumer defect reports across all 74 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 34 0 1 0 1
Air Bags NHTSA category: AIR BAGS 22 1 0 0 0
Powertrain NHTSA category: POWER TRAIN 18 0 0 0 0
Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM 15 0 0 0 0
Vehicle Speed Control NHTSA category: VEHICLE SPEED CONTROL 12 1 0 0 0
Structure & Body NHTSA category: STRUCTURE 10 0 0 0 0
Electrical System NHTSA category: ELECTRICAL SYSTEM 7 0 0 0 0
Engine NHTSA category: ENGINE 5 0 0 0 0
POWER TRAIN,ENGINE 5 0 0 0 0
POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE 5 0 0 0 0
POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM 4 0 0 0 0
Visibility & Wipers NHTSA category: VISIBILITY/WIPER 4 0 0 1 0
Fuel System NHTSA category: FUEL SYSTEM, GASOLINE 3 0 0 0 0
Seats & Restraints NHTSA category: SEATS 3 0 0 0 0
STEERING,SUSPENSION 3 0 0 0 0
Suspension NHTSA category: SUSPENSION 3 0 0 0 0
SUSPENSION,UNKNOWN OR OTHER 3 0 0 0 0
UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM 3 0 0 0 0
Visibility / Glass NHTSA category: VISIBILITY 3 0 0 0 0
AIR BAGS,UNKNOWN OR OTHER 2 0 0 0 0
Back Over Prevention / Camera NHTSA category: BACK OVER PREVENTION 2 1 0 0 0
Engine & Cooling NHTSA category: ENGINE AND ENGINE COOLING 2 0 0 0 0
ENGINE,FUEL/PROPULSION SYSTEM 2 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM 2 0 0 0 0
POWER TRAIN,FUEL/PROPULSION SYSTEM 2 0 0 0 0
POWER TRAIN,VEHICLE SPEED CONTROL 2 0 0 0 0
STRUCTURE,UNKNOWN OR OTHER 2 0 0 0 0
SUSPENSION,SERVICE BRAKES,ENGINE 2 0 0 0 0
UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM 2 0 0 0 0
UNKNOWN OR OTHER,VISIBILITY/WIPER 2 0 0 0 0
VEHICLE SPEED CONTROL,ENGINE 2 0 0 0 0
AIR BAGS,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
AIR BAGS,LANE DEPARTURE 1 0 0 0 0
AIR BAGS,STRUCTURE 1 1 0 1 0
AIR BAGS,STRUCTURE,UNKNOWN OR OTHER 1 0 0 0 0
AIR BAGS,UNKNOWN OR OTHER,ENGINE 1 0 0 0 0
ELECTRICAL SYSTEM,AIR BAGS,LANE DEPARTURE 1 0 0 0 0
ELECTRICAL SYSTEM,AIR BAGS,SEATS 1 0 0 0 0
ELECTRICAL SYSTEM,AIR BAGS,UNKNOWN OR OTHER 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,UNKNOWN OR OTHER 1 0 0 0 0
ELECTRICAL SYSTEM,UNKNOWN OR OTHER,BACK OVER PREVENTION 1 0 0 0 0
ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL 1 0 0 0 0
ELECTRICAL SYSTEM,VISIBILITY,LANE DEPARTURE 1 0 0 0 0
Equipment & Accessories NHTSA category: EQUIPMENT 1 0 0 0 0
Forward Collision Avoidance NHTSA category: FORWARD COLLISION AVOIDANCE 1 1 0 0 0
FUEL SYSTEM, GASOLINE,ELECTRICAL SYSTEM,ENGINE 1 0 0 0 0
LANE DEPARTURE,BACK OVER PREVENTION,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
LANE DEPARTURE,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM,ENGINE 1 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM,UNKNOWN OR OTHER 1 0 0 0 0
POWER TRAIN,ENGINE,HYBRID PROPULSION SYSTEM 1 0 0 0 0
POWER TRAIN,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
POWER TRAIN,VEHICLE SPEED CONTROL,SERVICE BRAKES 1 1 0 1 0
Seat Belts NHTSA category: SEAT BELTS 1 0 0 0 0
SEATS,SERVICE BRAKES,BACK OVER PREVENTION 1 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES 1 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES, HYDRAULIC 1 0 0 0 0
SERVICE BRAKES,BACK OVER PREVENTION,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
SERVICE BRAKES,ENGINE 1 0 0 0 0
Steering NHTSA category: STEERING 1 0 0 0 0
STEERING,ELECTRICAL SYSTEM,ENGINE 1 0 0 0 0
STEERING,POWER TRAIN 1 0 0 0 0
STEERING,POWER TRAIN,ENGINE 1 0 0 0 0
STEERING,SERVICE BRAKES 1 0 0 0 0
STEERING,SUSPENSION,POWER TRAIN 1 0 0 0 0
STRUCTURE,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
SUSPENSION,POWER TRAIN 1 0 0 0 0
SUSPENSION,POWER TRAIN,UNKNOWN OR OTHER 1 0 0 0 0
SUSPENSION,STRUCTURE,UNKNOWN OR OTHER 1 0 0 0 0
UNKNOWN OR OTHER,BACK OVER PREVENTION 1 0 0 0 0
VEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM 1 0 0 0 0
Wheels & Hubs NHTSA category: WHEELS 1 0 0 0 0
Search Intelligence

Quick Answers: Common Problems & Reliability Questions for the 2024 Toyota Grand Highlander

Direct, deterministic answers synthesized from verified United States government databases for the 2024 Toyota Grand Highlander

What are the most common reported problems with the 2024 Toyota Grand Highlander?

In official NHTSA consumer records, the most frequently cited issue area for the 2024 Toyota Grand Highlander is Powertrain & Transmission, appearing in 48 records (21% of submitted filings).

Secondary reported categories include Driver Assistance & Safety Tech (39) and Fuel & Propulsion System (35).

Source: NHTSA Office of Defects Investigation (ODI)

Is the 2024 Toyota Grand Highlander a reliable vehicle?

AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 229 consumer defect complaints and 4 safety recall campaigns for the 2024 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 2024 Toyota Grand Highlander?

Among consumer complaint records on file with NHTSA for the 2024 Toyota Grand Highlander, 6 filings cite a crash, 1 cite smoke or fire, and 3 report one or more 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 2024 Toyota Grand Highlander?

NHTSA ODI records list 1 formal defect investigation involving the 2024 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.