2025 Toyota Grand Highlander owner complaints

The contact owns a 2025 Toyota Grand Highlander with an Evenflo Revolve 360 Slim car seat, Model Number: 36812470A, Manufactured Date: December 12, 2022, installed in the vehicle. The contact received notification of NHTSA Campaign Number: 25C010000 (Child Seat). The contact stated that while driving at an undisclosed speed with the child secured in the car seat, the contact became aware that there was an object in the child’s mouth. The contact pulled over to the side of the road and removed a foam piece from the child's mouth. The contact inspected the car seat and became aware that the foam was from the headrest. Medical attention was not needed. The manufacturer was not notified of the failure, but the contact stated that the manufacturer mailed tape to cover the exposed areas of the c

While driving at approximately 50 MPH with no other vehicles around, there was a loud bang and then the sound of air. We identified that the panoramic sunroof had exploded. We pulled over immediately and took photos of the sunroof which at that time was shattered but intact. There was a clear bulge upward and no sign of impact from an outside force. We then continued driving to our home approximately another 40 miles, during that drive shards of glass flew onto the roadway leaving a hole in the sunroof of approximately 10-12 inches. We brought the vehicle to Toyota dealership for a warranty repair. Toyota refuses to cover under warranty, stating outside influence. I am confident there was no outside influence causing the glass to explode. The vehicle is a 2025 Grand Toyota Highland

There is a coolant leak in the hybrid radiator caused by a puncture. When taken to the dealer, they said a rock must have punctured it. The dealer currently has the part. Me, my husband, and 2 children were driving on I-5 when the car stopped accelerating and a "hybrid malfucntion" code and "engine malfunction" code started flashing. Prior to this, there were no warnings. I was thankfully able to full over safely, but we were stuck on the side of I-5 for at least an hour waiting for a tow. I am reading online that this is an issue with the car and seems to be a design flaw. The gaps in the grill are too large, and there is no mesh or anything else behind the grill to protect the front end of the car.

Sun roof shattered unprovoked in 2 month old vehicle while driving slowly in parking lot. We didn't know what happened at first but then opened interior lining and the shattered glass fell into the cabin; nobody was hurt. when we took this to dealership, we were told this wasn't under warrantee and we had to get it fixed independently. I filed a complaint with Toyota Care but they denied covering cost to fix the shattered sun roof. We did not have the shattered sun roof inspected by anybody else but it has been fixed by glass shop.

I am told my 2025 Grand Highlander has a hole in the AC Condenser from "road debris" according to a Toyota dealership leading to no air conditioning. I've never taken the car off-roading. A simple google search shows that others are having this issue and are buying extra netting to protect it from happening again. I'm told I need to pay $1,800 to have this fixed when I haven't even had the car for a year. This seems like a design flaw that needs to be addressed.

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 sunroofs leaking had been resolved. In addition the plastic handle that controls the middle seat broke off after using it three times.

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 with an overwhelming odor. My son urgently came to get me when he stepped into the garage and realized how strong the fumes were. We had to open the garage to air it out. I called the Larry Miller Peoria Toyota dealership immediately and had my vehicle inspected the following day on XXX. I was informed by the service advisor that Toyota receives numerous complaints daily about this very issue with the newer model Highlanders, Grand Highlanders, Tacomas, and 4Runners. I insisted that my vehicle b

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 came onto the control panel. There were not immediate safety issues, so I was able to get to a Toyota Dealership to have it repaired. I did not hear any gravel or road debris flip up onto my sunroof, nor did I hear any under my tires when driving. My vehicle was inspected by a service technician at the Toyota Dealership and he just said it was probably caused by an outside influence.

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 response. Other times the car responds as one would expect.

My wife was driving and a small rock passed through the front grill puncturing the radiator and causing her check engine light to come on. Within 5 minutes the coolant leaked out and the car was undrivable. We took it to Bredemann Toyota in Park Ridge who replaced it.

The car only accepts 11-13 gallons of gas when refueling an empty tank despite the advertised 17.2 gallon capacity. I believe this is a fuel gauge or DTE system problem. I’ve seen many many similiar complaints on the forums. Fuel gauge issue could leave drivers stranded on the road.

Apparently, a rock flew into the front grill striking the radiator (which is located directly behind the grill) and put a hole in it. This caused fluid to leak and fortunately during a routine maintenance check (my first service) on 8/15/25, it was discovered. The car was deemed not safe to drive until repairs were made. I submitted it to my insurance company and they inspected it and verified the issue. The radiator was replaced by Toyota at the dealership where I purchased the vehicle. They said they heard of a few cases, but I went online and discovered several vehicles that had this happen. Apparently the grill on the new highlanders is the issue - it has wide openings and the radiator is directly behind it. I am purchasing a bra and some mesh to place behind the grill in order to prev

While accelerating from low speeds and turning, the car exhibits a rotational clicking noise from one or both front drive shaft assemblies. Seems to be the identical issue noted in the 2024 Grand Highlander that was presumably fixed during later production lots (T-SB-0082-24). That issue was seemingly solved with driveshaft replacement. The dealer said they “could not duplicate” the issue; however, it happens often while I am driving the vehicle and others have reported it to the same dealer as well. It seems to be an existing related safety issue that the dealer, and potentially the manufacturer, are ignoring until we get past the warranty.

Shortly after powering on the GHHM vehicle, driving a short distance, coming to a stop and depressing the accelerator the vehicle does not accelerate as though no power is getting to the drive train. This does not often happen but has always happened when the EV battery level is 3 bars or less and the vehicle is in its Normal mode (as opposed to Sport or ECO). This acceleration failure event lasts for a few seconds. No warning indicators are displayed prior to, during or after this happens. The dealer checked the vehicle on 30AUG2025, was not able to reproduce, but applied a firmware update TSB-0040-25, which has not solved the problem. Took it back to dealer on 14OCT2025, but the dealer was again not able to reproduce the problem. It poses a safety risk when attempting to cross intersec

Poor acceleration from 0 to 40. Vehicle will start shuttering at a dead stop. The engine has shut off once with this issue. It happened around 4800 miles.

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 over 4000. It is very dangerous trying to proceed through an intersection and the car basically stalls when I press the gas. It especially concerns me that I have my child in the car with me and I worry when it is going to act up. I know others have experienced this issue and there was a TSB for 2024 models that had this issue. I have a 2025 and experience this issue. I have had toyota look at it and they said they cant do the TSB since it's bot for my VIN. A solution needs to be found for the the

I have experienced intermittent transmission issues. Specifically, the car often fails to shift gracefully from first gear, resulting in rough or hard shifts that are jarring and unsafe, particularly during acceleration or in stop-and-go traffic. On multiple occasions, the vehicle has refused to shift correctly, requiring me to pull over, turn the car completely off, and restart it to restore proper shifting functionality. This issue is not only inconvenient but also poses a significant safety risk, especially when merging into traffic or navigating busy roads. For a vehicle marketed as a reliable and family-friendly SUV, these transmission problems are unacceptable. The transmission issues have significantly undermined my confidence in the vehicle’s safety and reliability, particularly as

Inconsistently but on numerous occasions, this vehicle has experienced harsh shifting, hesitation, or jerking during low-speed acceleration (e.g., 20-40 mph) or gear engagement. This was a known and reported issue with the 2024 model for which Toyota provided a fix. They have not provided one for the 2025 models. This issue is a safety risk while driving because with the surge you feel you must quickly let off the pedal, and with the hesitation you let off the brake indicating you will move forward yet the vehicle doesn’t accelerate.

On 11/02/2025 with the cruise at 55mph all glass closed. Heater on with no vehicles around, the sunroof exploded. It pushed up from the inside. With less than 9k miles on the vehicle. It took my dealer 8 days to look at it then Toyota denied the warranty. Then Quoted me over $2,100 to replace. This vehicle isn't safe to drive as told to me from the dealer.

Windshield is prone to cracks and chips. Experienced multiple chips/cracks going at various speeds with precaution to other vehicles.