There are 6 owner-reported visibility & wipers complaints for the 2024 Toyota Grand Highlanderin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
While driving, my panoramic moonroof exploded. There were no rocks or big vehicles on the road, but the panoramic moonroof simply just exploded. This could've been very dangerous and could've caused serious injuries for those inside of the vehicle, especially if the vehicle was moving.
I bought this car brand new three weeks ago from a Toyota dealership.and there are all kinds of distortions in the glass on the windshield of the vehicle. There are all kinds of wavy distortions on the glass on the windshield. With the windshield glass, not being clear, it makes me concerned about the safety features not working properly. These distortions makes it difficult to drive the vehicle because it’s not clear and is distracting. The glass is acoustic heated glass made by Pilkington.
My Toyota Grand Highlander develops severe interior window fogging and condensation, affecting the windshield, front side windows, and occasionally rear windows. This occurs during normal driving, especially in cool or humid conditions. The fogging appears rapidly, and the HVAC/defrost system often fails to clear the windows effectively, even when set to full defrost with outside air intake. Interior moisture buildup is excessive compared to other vehicles I’ve owned, and the issue repeats regularly. This creates a significant visibility hazard, forcing me to adjust climate controls constantly while driving or pull over to clear the glass manually.
The defroster on the vehicle does not work properly. When starting the car and the window is frosting, the drivers side of the front window defrosts normally but the right side does not defrost properly and it lags by 15-20 minutes. You cannot operate the vehicle safely with your entire passenger side frosted over. I reported this to Toyota as well as dealer and they are advising that it is working normally. I have pictures that show that the passenger side does not defrost properly, it was reproduced by the dealer, and Toyota's thermal imaging scan confirms lack of heat on the far side. However, Toyota is standing by that it is working as designed despite their testing showing it isn't working properly.
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.
I was driving around town and a loud bang, almost as loud as a gunshot. My moonroof had shattered into thousands of pieces.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on May 4, 2026