2024 TOYOTA GRAND HIGHLANDER Complaints

The contact owns a 2024 Toyota Grand Highlander. The contact received notification of NHTSA Campaign Number: 24V461000 (Air Bags); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

Published 2024 Toyota Hybrid Grand Highlander (TGH) specifications, the TGH owners manual and dealer information provided indicated the vehicle has a 17.2 gallon fuel tank. However, the most fuel I am able to get in the tank is between 11 and 11.5 gallons. I've had the vehicle in to fix the defect on three occasions; 2023-11-27, 2024-3-11, & 2024-8-13 to no avail. On the second service, Toyota's technician said the tank had 16.8 gallons remaining when I picked it up, I had filled it the previous day and driven approximately 15 miles. Once the gauge showed near empty with only a few miles left of fuel, I filled the tank and was only able to get 11.4 gallons in the tank. There appears to be six gallons of fuel that I am carrying in the tank that the fuel system cannot access. I have searched on-line and found that a number of other TGH owners are experiencing a similar defect.

Toyota has issued a STOP SALE and RECALL on the airbags in this vehicle. There is no anticipated time for resolution but rumors indicate it might be October. During this time the airbags would not deploy if you are driving with the front windows down as it affects both driver and passenger side. We bought this car with the expectation of quality and my confidence is not high given Toyota has also issued recalls on engines in the Tundra. I have contacted Toyota Customer Care, a case was created and I was directed to the dealership for any additional action or updates. The dealership has indicated that the warranty administration has not authorized loaners as there would be no reason for me to drive with my windows down. While that might be true this time of year due to extreme heat I may take the car with me to cooler climates and have the windows down. The Lane Keep Assist seems to be aggressive at times trying to get me to "stay" in my lane when I have been driving and maintaining a center position in the lane but feel it pull the steering wheel when it seems unnecessary. I am unclear if this is a defect in the software or cameras or if it could be the result of a sensor with some debris or obstruction over it (i.e. dirty windshield or bug splatter)

Several times per week, when I go to accelerate after being at a complete stop, my vehicle hesitates and does not pick up power. It very slowly accelerates and feels as if it’s going to stall, then suddenly revs up and accelerates, but revs up higher than it should before finally getting to the appropriate speed/rpm. This is very unsafe as I cannot pull out into traffic, even if I should have time, because I don’t know if it is going to accelerate or not. One of these days I am going to get T-boned! I took it to the dealership and they did a software update that was supposed to fix the issue, but it did not. The issue still happens several times per week. There are no warning lights on the dash. The dealership did not run a diagnostic because they told me I would have to pay for it if no codes came up. I’m not willing to do that, as I feel since the vehicle is under warranty and having issues, the diagnostic should not be my responsibility to pay for. I cannot say a specific date when it occurred (below) because it occurs often.

On high-temperature days, when the A/C is running at full capacity, the vehicle occasionally fails to accelerate from a stop. This issue persists even after applying the recommended ECM update. The lack of reliable acceleration poses a significant safety risk, particularly when turning across oncoming traffic or entering a busy street. This situation can leave the vehicle stalled in the path of approaching vehicles, increasing the likelihood of an accident.

There has been a recall impacting the safety of driving this vehicle (air bag related) and the dealer and manufacturer have provided no ETA on when there will be a fix for this or when the vehicle will be safe again to transport our children. In our view we should be refunded in full for this vehicle purchase given the ongoing safety issue resulting in us being unable to drive the vehicle.

I have now experienced 5 times in one month where my Toyota Grand Highlander Hybrid Max Platinum will not accelerate after breaking at a stop sign or stop light when the gas pedal is engaged.

When accelerating from a complete stop, there will occasionally be significant hesitation in the car actually accelerating. For example, I was at a stop sign then attempted to make a left turn when there was a break in the oncoming traffic. My car would not accelerate, almost as if it shut off. It then begins to accelerate. On another instance, I was at a stop sign and when I had the right of way, I stepped on the gas pedal but the car would not accelerate until roughly 10mph, at which time the acceleration kicked in. After this happened a few times, and after reading about it in social media groups, I brought the issue to the attention of the dealership. At the time of service, they were able to replicate the issue and performed a software update (T-SB-0017-24). That seemed to help but only for a few days, then the issue happened again - twice in the same afternoon. I took the car back, only to be told the issue could now not be replicated and that there was no additional fix. It happened again this morning. It is only a matter of time before I get broadsided because my car doesn't move through a turn or the intersection because it just rolls until the acceleration kicks in. I'm concerned about getting rear ended when the car doesn't move at the appropriate speed when either the light changes or from a stop at a stop sign. There are no warning lamps that appear or any sort of system malfunction notices.

Our vehicle is less than 2 months old, and it had less than 5,000 miles before highway debris (gravel) chipped and cracked the windshield on two separate occasions. I have never had a chip or crack caused by rocks before, and my previous vehicles have been hit plenty of times. Talking to people that own the Lexus equivalent of my Grand Highlander (Lexus TX), they have similar experiences with what appears to be very weak windshields. I will have to replace the windshield.

Multiple times I have pressed the gas pedal and the car has not responded, as in did not accelerate. I was almost T-boned one time because of it since I was turning left and could not accelerate above 5mph. This is a frequent issue among GH Hybrids from talking to others.