Complaints about the 2026 Toyota Grand Highlander peaked in 2025, with 1 filed
Owner complaints about this model year, by the year they were filed with NHTSA.
SUV, hybrid, 4WD/4-Wheel Drive/4x4, built in United States. Owner complaints on file from Nov 5, 2025 to Sep 29, 2026.
Owner complaints about this model year, by the year they were filed with NHTSA.
Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.
Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.
| Campaign | Filed | Subject | Component | Vehicles | Remedy |
|---|---|---|---|---|---|
| 26V-598 | Sep 17, 2026 | Due to a manufacturing error, the front steering knuckles may crack and break, which can result in a loss of vehicle steering control | Steering | 617 | Part replacement |
| 26V-437 | Jul 8, 2026 | Rear axle carriers may have been manufactured with insufficient material strength and could break | Powertrain | 5,408 | Part replacement |
| 25V-744 | Oct 30, 2025 | Software error may cause the rearview camera to freeze or display a blank screen when the vehicle is in reverse | Back-over prevention | 1,024,407 | Software update |
The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.
35 complaints on file, page 1 of 2.
June, July and August multiple occurrences of Electronic Parking Brake and Drive Engagement Failure intermittently occurring. The Automatic electronic park brake fails to release from Park to Drive or Park to Reverse while drivers seatbelt is fastened, all door closed, vehicle on level ground. Vehicle behaves as if it's still in Park and revs RPM with gas pedal pressed without movement. Vehicle may abruptly lunge once engagement finally occurs after vehicle on/off & multiple Park to Drive manually placed. Seatbelt of driver has stated that the drivers seatbelt is not buckled when it is and all doors are closed. Display on the info display states that driver door is open when it's closed and that seatbelt is unfastened, when it is fastened. Push start button intermittently fails like it has a dead battery. Button is pressed at appropriate length to start but sputters or hesitate before finally starting with sometimes multiple attempts. Excessive wind noise due to roof seal being raised. Roof weather stripping was lifted/separated. There was no full replacement of this issue on September 17th at a local dealer but rather a quick fix of refitting the molding. I stated that is not the appropriate fix due to the actual factory seal stating it cannot be reused once compromised. Today, September 29th, the back panoramic sunroof exploded going down the highway with no other external impact and was stated as a possible occurrence after a seal is not replaced appropriately. It is note in my Toyota case management file as well. Overhead console electrical failure had been fixed may 28, 2026 after purchase in March brand new. The drivers overhead light failed and all cabin lights surged when pressed. Driver door lock and key fob malfunction in June 27. The drivers door locked with the key fob still inside vehicle at center console. Toyota app indicates vehicle was unlocked. Driver door would not unlock by app. Had to crawl through the passenger side to manually unlock.
NHTSA complaint 11767749Periodically, when you apply the gas, there is no power. The gas pedal is dead. This obviously is a hazard when trying to maneuver through traffic. The problem is random and cannot be reproduced at will. The dealership said they could do nothing about it if they could not reproduce the issue. Vehicle is still under the manufacturer warranty.
NHTSA complaint 11767296Windshield has experienced multiple cracks/chips at extremely low mileage. Initial crack occurred before 1,000 miles and originated at the upper edge of the windshield. Crack has propagated from the top to the bottom. Multiple additional star cracks have developed. I am concerned about possible windshield/glass, installation, or structural issue. I previously owned a Highlander for over 10 years and did not have any issues of this and I live in the same area. I had one crack that entire time. I currently have 9000 miles with the long crack +3 additional star shape cracks. One occurred from a very small rock that hit and the other I never even heard one hit it.
NHTSA complaint 11765486The contact owns a 2026 Toyota Grand Highlander. The contact stated that while driving 65 MPH, the vehicle was involved in a head-on collision with a commercial lawnmower that fell from a truck. The driver's seat air bag deployed in a downward position, and the other air bags failed to deploy. The driver and the front passenger sustained cuts on their necks from their seat belts and received medical treatment. The driver also received trigger point injections for pain management. The vehicle was towed to Car Craft, where it was repaired. The vehicle was inspected by the insurance company. A police report was filed. The manufacturer was contacted by phone and a case was opened, and the manufacturer requested an additional 30 days to release Event Data Recorder (EDR) information. The failure mileage was approximately 10,000.
NHTSA complaint 11764343My 2026 Toyota Grand Highlander XLE has a recurring gasoline smell near the rear driver’s side after long trips or when parked with the engine idling. The source of the odor and the specific component involved are unknown. I am concerned about a possible fuel or vapor leak and the potential fire risk to myself and my passengers.
NHTSA complaint 11764246After starting the vehicle and coming to a conplete stop the vehicle will hesitate upon new acceleration. The hesitation causes a lag in the vehicle and it then will jerk or jolt while shifting. The vehicle will Rev up in a low gear and not shift correctly. This causes a safety issue especially when going into traffic. I have not taken it to the dealer as of yet, but I will be. This is an intermittent issue, so i fear toyota will say they cannot replicate the issue. There were no warning lamps when the event happens.
NHTSA complaint 11762019The weather seal on the moonroof is coming off the moon roof surround and this is causing water and air to leak inside the passenger cabin.
NHTSA complaint 11761044The front grill by design has bigger holes with potential of rock hitting radiator . I have seen very small damage to radiator more like superficial. A bigger rock could damage the radiator
NHTSA complaint 11760986Dear NHTSA, I am writing to formally report a potential safety defect involving the front grille design of my 2026 Toyota Grand Highlander Limited. Fortunately, my vehicle has not experienced any damage or mechanical failure related to the grille at this time. However, after examining the design of the front grille and the components located directly behind it, I have serious concerns that the relatively large grille openings may allow rocks and other road debris to pass through and strike critical cooling components, including the radiator and other heat exchangers. My concern is particularly related to the potential consequences of such an impact. If road debris were to damage a cooling component, it could result in coolant loss, overheating, warning messages, reduced vehicle performance, or potentially loss of propulsion. If this occurred while traveling at highway speeds, it could create a significant safety risk for the vehicle occupants as well as other motorists. I understand that NHTSA is currently reviewing concerns regarding the front grille design of 2024–2026 Toyota Grand Highlander vehicles. I would like my vehicle and this concern to be included in NHTSA’s review. I believe this issue warrants further evaluation because the concern exists even before an actual failure occurs. A safety defect should ideally be identified and addressed before owners experience a failure that could potentially create a hazardous situation while driving. I respectfully request that NHTSA investigate whether the front grille provides adequate protection for the critical cooling components behind it and determine whether Toyota should provide a protective screen, revised grille design, or another corrective measure. Again, I want to emphasize that I am reporting this as a potential safety defect. My vehicle has not suffered damage or experienced a failure at this time. I am submitting this complaint proactively because I believe the design presents a foreseeable risk
NHTSA complaint 11760478Small object came through the front grill and put a hole in AC condensing unit. Grill does not protect from small road objects.
NHTSA complaint 11759952While stopped waiting to takeoff (turn into a road or area), during takeoff acceleration, the car will sometimes have a dead pedal and slow or stop acceleration leaving you a sitting duck in an intersection or road.
NHTSA complaint 11759653road debris entered into front grill though the holes in grill adn damaged condensor fins causing vehicle to loose propulsion. Vehicle would not travel over 25 mph after the incidnet. This is safety issue as vehicle slowed from 55MPH to 25MPH rather abruptly on highway. Multiple lamps came on dash at time of incident and were reatained untill fixed (non warranty repair)
NHTSA complaint 11759168For no reason at all windshield has two parallel lines crack in upper right side, no signs of impact and not sure what caused this.
NHTSA complaint 11759009During normal highway driving, a small road rock/debris entered through the front grille and damaged the radiator/heat exchanger. The damage caused coolant to leak, and the vehicle subsequently lost propulsion and became disabled. I had to stop driving the vehicle and have it inspected and repaired by a Toyota dealer. The Toyota dealer inspected the vehicle and confirmed that the radiator/heat exchanger was damaged by an outside object and was leaking. The dealer indicated that rocks or road debris can cause this type of damage. The total repair cost was approximately $1,350. I am concerned that the large openings in the front grille allow ordinary road debris to reach the radiator/heat exchanger, which is not adequately protected. A relatively small road object resulted in a critical cooling system failure and sudden loss of vehicle propulsion, creating a significant safety risk, particularly if this occurs while traveling at highway speed. I understand that NHTSA is currently reviewing similar reports involving the grille design and damage to the heat exchanger/radiator on Toyota Grand Highlander vehicles. My vehicle experienced a similar failure. I believe this issue should be investigated as a potential design-related safety defect and that an appropriate protective solution should be considered.
NHTSA complaint 11759004My 2026 Toyota Grand Highlander Platinum has an issue that is commonly referred to as "cabin boom". It occurs at approximately 30mph going over bumps or rough patches in the road. When it occurs it creates a droning noise that amplifies the bump or rough surface you drove over and also creates a cabin pressure similar to flying on an airplane. This issue has caused significant ear pressure and headaches from driving my brand new vehicle. As a chronic migraine sufferer, this is unacceptable when you commute 25 miles to and from work. The issue has been reproduced by the Toyota dealership and they are currently in a waiting phase of next steps from Toyota corporate engineers on how to fix the issue, however there is no timeline on a resolution. Considering this has been an issue for over two years I find it unacceptable. They have added sound proofing materials around the spare tire and that didn't help the issue at all. This has apparently been an issue since the first Grand Highlander model was released, however it seems to not affect all of them but does affect across all trim levels.My dealership just got two brand new Grand Highlanders in this past week, and they make the same exact sound. I'm hoping with more reports of the issue Toyota will actually address it because I know of many other owners who have this problem. Other owners have taken these same steps over the past two years with no results. Please help make Toyota recognize and figure this out.
NHTSA complaint 11758692Front bumper grille too large. I see lots of bugs stuck on top of radiator. Very exposed for rocks to enter and damage cooling systems.
NHTSA complaint 11758691I was driving down [XXX] at approximately [XXX] this morning and heard a loud bang, then an air sound like window not fully closed, then heard crumbling glass falling into Sunroof shade. Initially I thought I had a tire blowout or someone on the access road fired a pistol. When I stopped and took a picture of the sunroof I saw the front sunroof glass bulging upward and the whole window was cracked with glass lying in the sunroof shade. If I had the sunroof shade open the glass would have been all over my head. I reported the incident to Orr Toyota in Hot Springs, ar. and they informed me that Toyota claims that something impacted the window. There was no impact to the window as it would have caused the window to bulge inward if that occurred. They evidently ignored my original picture so I don't see how they could make a determination of impact after I'd driven the vehicle more than 50 miles to get to their location (The event occurred in Bryant, ar). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint 11756523My 2026 Toyota Grand Highlander exhibits abnormal fluttering/vibration of the hood at speeds above approximately 25 mph. I have identified that this is the same defect documented in Toyota's own Technical Service Bulletin T-SB-0111-24 (issued December 4, 2024), which addresses this condition on 2024 model year Grand Highlander and Grand Highlander Hybrid vehicles, with the same complaint widely reported by 2025 model year owners as well. Despite this being a known, documented Toyota defect for three consecutive model years, I have been unable to get it resolved through Toyota's official channels: I contacted Toyota's PATT Lab (Parts and Technical Assistance) regarding the vibration under Dealership Task Number DC261970283. PATT Lab informed me that other 2026 model year vehicles exhibit the same condition, characterized it as "intended behavior," and closed the task without applying the known TSB remedy. I was directed to Toyota Brand Engagement for further assistance. This was opened as Case Number 260722000822. Toyota Brand Engagement stated they are not mechanics and that the issue must be resolved at the dealership level, but has provided no directive or authorization to the dealership to perform the known TSB repair. As a result, I am caught in a loop between Toyota corporate departments, none of which will authorize or perform the fix that Toyota's own engineering team has already documented and issued a bulletin for. My vehicle has a known manufacturing/design defect that Toyota has acknowledged in writing for prior model years, yet I am being told simultaneously that it is "normal" and that it's a dealership matter — while no dealership has been given authorization to apply the remedy. Requested Action: I am requesting that Toyota Motor Sales, USA be required to apply the existing Technical Service Bulletin remedy (or its 2026 model year equivalent) to my vehicle at no cost, consistent with how this defect has already been addressed for 2024 and 2025 mod
NHTSA complaint 11752112I haven’t had no accident in my car
NHTSA complaint 11750959Component: Automatic transmission, 2026 Toyota Grand Highlander Hybrid MAX Platinum AWD. Available for inspection. Purchased new 11/21/2025 at zero miles. Beginning ~2000 miles (est Feb 2026), intermittent transmission malfunction during acceleration: transmission holds gears at elevated RPMs beyond expected shift point, then shifts harshly or shudders violently. Documentation began 6/1/2026; current odometer 8936 miles. Occurs from 22–64 mph, most commonly 30–44 mph, in Normal and Sport modes, after cold starts, extended driving, and brief stops. RPMs typically hang at 3500–4000 before shifting. Documented incidents over the last month: June 1, 2026, 3:20 PM: Approximately 1 min after cold start, turned right at a light to 33 mph. Violent shake and abnormally loud acceleration during gear change. June 2, 2026, 3:00 PM: Turning right and accelerating after driving approximately 1 min, transmission revved high; had to release throttle to force the shift. June 11, 2026, 4:40 PM: After cold start, driving up a small incline about .4 miles away, transmission revved high and delayed shift at 35–45 mph. June 12, 2026, 3:17 PM: After 17 minutes of driving, accelerating from a cloverleaf around 25 mph to 64 mph, revved at 4000 June 19, 2026, 3:00 PM: After 2 hours of driving and a 5 min stop, turning right out of a shopping center, transmission hung up three consecutive times at 35–40 mph, RPMs at 3500–4000. June 20, 2026, 11:17 AM: Accelerating off a cloverleaf at 57 mph. RPMs hung at 4000 before shifting. June 30, 2026, 10:23 AM: Pulling out of neighborhood after backing out of driveway. RPM hang at approximately 22 mph, then again at 43 mph Safety risk: Unexpected RPM surge and violent gear change during acceleration on highway on-ramps, cloverleaf merges, and intersections creates unpredictable vehicle response at speed, presenting collision risk to driver and surrounding vehicles Dealer/service: Not confirmed by dealer. Assessed at ~6000 miles with no issues found
NHTSA complaint 11747505Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.