2021 Toyota Highlander Structure
Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.
Complaint Timeline
Chronological view of owner reports
The contact owns a 2021 Toyota Highlander. The contact stated that on various occasions, water was leaking into the vehicle from the roof rack. The contact stated that there was a bad odor in the vehicle. The vehicle was taken to a local dealer, where the failure could not be duplicated, and the mechanic stated the smell was possibly from a spill. The failure reoccurred, and the vehicle was taken back to the dealer, where it was diagnosed that there was black mold in the air bags, floorboards, headliner, and various other areas and that the vehicle needed to be detailed to remove the mold. The vehicle was repaired; however, the contact then stated that there was condensation seen in various areas inside the vehicle, windows were failing to operate, and the headliner was sagging. The vehicle was not taken back to the dealer. The contact stated that after seeking medical attention for herself and her children for ongoing unknown symptoms, they needed to be prescribed asthma and allergy medication, and she sought legal advice. The manufacturer was made aware of the failure. The approximate failure mileage was 10,000.
The sunroof on my 2021 Toyota Highlander spontaneously exploded. I was merging onto a highway but just started to accelerate normally - was going approximately 20-30 mph. The entrance ramp was a merge lane, and there was a semi truck with no load, so intentionally accelerated slowly to allow the truck driver easy access to the highway. The temperature outside was approximately 80 degrees, clear skies, no construction around me. No object from the truck in front flew backwards to hit my Highlander. It sounded like a gunshot, but felt no impact to the Highlander. I slightly opened the sunroof liner, because the loud noise seem to come from directly overhead. I saw that the sunroof was shattered, so quickly closed the sunroof liner to prevent any glass from falling down. I exited the first exit and drove to the dealership. Ironically, I already had an appointment for routine maintenance. When I arrived at the dealer - I saw that an approximate 6" x 2" section of glass was missing, and the rest of the sunroof was completely shattered. There is no visible damage to any other part of the Highlander. The service advisor looked and it looked like the glass looked like it was pushed up, in his words "looked like it was pressure induced from the inside". My friend searched - and found this is a common problem in 2020-2021 Toyota Highlanders.
On Saturday Jan 21, 2023 while driving 70 mph on I75 between Naples and Ft. Lauderdale Florida the lower bumper fell off. We didn't hit anything on the road. I was driving and my wife was in the car and witnessed the incident. We pulled off onto the shoulder of the highway. Our quick response saved not only the lower front bumper from going under the front tires but also avoided a major accident. We had to tie the bumper to the grill and went to the nearest Toyota dealer. He put it up on the lift, showed us how Plastic plugs securing the lower bumper had failed. He secured the bumper with zip ties so we could proceed on our journey.
The front bumper, with the lower bumper cover, detached from the car while driving in the highway.
After leaving my hotel in San Diego in the early dense foggy morning. I pulled over to help a kid who looked like he was just hit by a car or something. I put my 2021 less than 1500 miles at the time Highlander in park. The kid walked up to my rig, I being a single female, cracked down the window, and asked if he was ok. At that point he just opened my driver's door and I started to panic as I thought the door was still locked. I grabbed the door a closed it and tried to lock it but not before he was able to open the back passenger door and get in. I really freaked out. Without thinking I got out of my rig and as he was closing the door I grabbed it and told him no get out. I have NEVER felt so unsafe in my own vehicle before because even in park while I was still in the car the door's were all locked and no stranger's could just walk up an get in. This is a serious life threatening situation. I made a video right after but, this doesn't take videos. Also, there were 3 other witnesses or more and the SDP of CA didn't even come a ask us any information. But, the fire and rescue, and ambulance came for the kid age 16-21, whom I tried to help and was only wearing his underwear. And was bleeding from head to toe. But, he scared the heck out of me as he 2as also at least 5'9-6'. Big kid I know. But, still a kid. And I was still in danger because my door's were not locked and I could not access the SOS. The cover would not open, or I was so scared I couldn't get it to open. Nonetheless, a new system is needed for emergencies just like that. Not all emergencies are about a crash.
Vehicle has had excessive wind noise since new. This was brought to the dealership's attention at the 5,000 mile service, and again at the 10,000 mile service. At the 5,000 mile service nothing was checked or done. At the 10,000 mile service the noise level was measured with a decibel meter and was at 79db at 55mph. The service tech then drove another 2021 Toyota Highlander that was on the lot and it registered the same decibel level at the same speed. The service tech said that he heard excessive wind noise, but since it was the same on both cars, there is no defect in our car. According to the CDC, noise above 70db over a prolonged period of time may start to damage hearing. The Toyota service manager said that Toyota's acceptable noise limit is 100db, therefore there is no problem, he is not going to attempt to fix the issue. According to CDC 100db is equivalent to a car horn at 16 feet, and cause hearing loss after 15 minutes. This is a dangerous noise level for the inside of a vehicle with the windows up and radio off.
Trend Over Time
Complaints by year
Other Issues
Common problems reported
Quick Summary
The 2021 Toyota Highlander has 31 Structure complaints on file. 1 crashes have been reported. Review the timeline above for detailed owner experiences.