606 of the 14,546 complaints filed about the Toyota Corolla are about the other systems — 4% of everything owners reported. The worst model year for it is 2020.
606
Complaints
4%
Share of all complaints
63
Crashes
5
Fires
UNKNOWN OR OTHER
Defect Investigation Number 11756518 Please inc;ude this report from my Toyota Dealer indicating that they could not find any problem with the accelerator as to why the vehicle jumped forward on its own
NHTSA complaint #11757109 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
While driving in the middle of active traffic, the vehicle experienced a sudden and dangerous loss of motive power. The first indication of a problem was the A/C abruptly blowing hot air. Immediately following this, the vehicle began violently shaking before the engine stalled completely. The low oil pressure warning light was triggered on the dashboard. Losing all acceleration in the middle of active traffic created an immediate, severe crash hazard. The engine failure occurred after a franchised dealer service department failed. They had said at the dealership that my oil was fine. They didn’t even check it.
NHTSA complaint #11752412 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
Vehicle emissions out of the dashboard defroster vents deposit a sticky, chemical film onto the inside front windshield, causing severe driver vision impairment. The chemical vapor triggers immediate respiratory irritation and dizziness, presenting an imminent risk of a motor vehicle crash.Defect / Nonconformity: The vehicle suffers from a severe HVAC or interior component material failure causing toxic off-gassing. An official Toyota FTS report (RO #116504) documented dangerous TVOC levels of 9.455 mg inside the vehicle. The manufacturing defect substantially impairs the safety, use, and commercial value of the vehicle. I did not have car seats in trunk, the time completed on report is changed, they will no longer inspect car. Specialist (FTS) report explicitly logs TVOC levels at 9.455 mg (3 PPM) inside the cabin. The film on my front windows is not coming from the trunk THIS IS A KNOWN HAZARD . LITERALLY told you
NHTSA complaint #11751412 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
System or component that failed: Heating, Ventilation, and Air Conditioning (HVAC) / Climate Control System.Description of Incident: The vehicle's HVAC system emits a severe, persistent chemical odor / Volatile Organic Compound (VOC) smell directly into the passenger cabin.Nail polish remover, burning plastic after DRIVING FORTH 20 MIN, was not addressed. This toxic-smelling odor causes immediate physical discomfort, chest pain, neck stiffness, including headaches and respiratory irritation while driving, creating a driver distraction and safety hazard. Dealer status: The vehicle was taken to a Toyota dealership on june 13, july 29th, refused ANY FURTHER INVESTIGATION. UNDER WARRANTYbut the defect could not be permanently resolved by the service center. Now seeing the chip in car was messed with after getting it towed back
NHTSA complaint #11751113 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
I also wanted to add the mold.. from the hour test was performed on this car. Ac in high flow. Within 12 hrs growth appears
NHTSA complaint #11751132 — an unverified report by a vehicle owner.
Other/I am not sure
Subject / Issue: Child car seat caused vehicle seat belt to become permanently jammed Complaint: I am reporting a safety-related issue involving an Evenflo Revolve 360 child car seat. During normal use, the vehicle seat belt became slightly twisted inside the car seat base, and the seat stopped rotating properly. We were then unable to remove the child car seat from the base following the standard removal instructions. While attempting to safely remove the seat, the vehicle seat belt became completely jammed inside the base. The seat belt is now fully immobilized and cannot move in either direction. As a result, the child car seat is permanently stuck in the vehicle, and the seat belt system in the left rear seat is unusable. We had the vehicle inspected at a Toyota service center, and they confirmed that the only way to remove the child seat is to cut and replace the left rear seat belt. The estimated repair cost is approximately $680. This situation has rendered a vehicle safety restraint system inoperable and requires cutting the seat belt to resolve the issue. I am concerned about the safety design and potential risk if this occurs during normal consumer use. Photos of the issue are available and can be provided if needed.
NHTSA complaint #11748228 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
I have mcas/ CIRS this new car triggered chest pain, muscle weakness, swelling, etc FTS REPORT CONFIRMED high off gassing. I'm in 3 mast cell stabalizers a day. I'm w out a car i put down 3500 a month ago. They left me, knowing all this. I'm 9 miles from a bus stop, from shopping, can't make money w out a car. 40 min from drs. I Already have lung nodules. Single mom, just want a safe reliable car odi XXX, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11748157 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
Airbags did not deploy in at crash where we were hit head on and car is totaled. I do not know the rate of speed the gentleman was driving, but the speed limit in the area was 45 mph and the gentleman ran the red light and hit us as we were waiting to make a left turn. Every responder, police, wrecker, medical personnel, and tow yard remarked that the air bags should have deployed after witnessing the extensive damage. Car is currently in tow yard. Insurance has offered payout but we have not accepted as of today. I keep trying to speak with Toyota but the wait times are extensive.
NHTSA complaint #11746897 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
The factory-applied Super White (paint code 040) paint on my vehicle has peeled down to bare metal on multiple exterior body panels. The peeling is not the result of any collision damage, scratches, or external trauma — it is consistent with the known factory paint adhesion defect that Toyota itself acknowledged through Customer Support Program ZKG, which covered this exact vehicle model, year, and paint color. Toyota's own program documentation states the defect occurs when sunlight degrades adhesion between the factory paint primer coat and the base metal electrodeposition layer. With paint peeled to bare metal, the affected panels are now exposed to moisture and the elements, creating a risk of structural rust and corrosion over time. I purchased this vehicle used in 2023 and was never notified of the Customer Support Program. By the time I discovered the program existed, the coverage had expired. Toyota has declined to provide any assistance. Toyota acknowledged this as a manufacturing defect affecting approximately 1.74 million vehicles under Program ZKG. Owners of 2016 Corollas who purchased their vehicles used were not adequately notified, and coverage has now lapsed for recently expired vehicles despite the defect being identical to those Toyota previously covered. I am requesting that NHTSA investigate whether Toyota's Customer Support Program ZKG adequately covered all affected vehicles and owners, and whether an expanded or extended remedy is warranted.
NHTSA complaint #11746704 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
My brand-new 2026 Toyota Corolla LE is venting toxic chemical, burning plastic, and acetone-like fumes directly through the dashboard HVAC vents and interior materials. Exposure to the cabin air causes immediate, severe systemic injury, including acute respiratory distress, throat and vocal cord inflammation resulting in a lost voice, uncontrollable sweating, and severe neurological muscle weakness. I have a critical pre-existing medical condition consisting of two lung nodules, making this chemical inhalation an immediate, life-threatening hazard to my health. This exposure has previously left me physically incapacitated for five days. The manufacturer (Toyota Motor North America) has been formally notified of the defect and my documented medical injuries. However, the manufacturer is refusing to provide emergency alternative transportation or safe loaner transport and is delaying the vehicle safety inspection for a full week (until June 29). The vehicle is currently parked and completely undriveable due to the active chemical or thermal hazard it presents to vehicle occupants.
NHTSA complaint #11745779 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
The glass on the instrument panel has an extreme glare in the sun. I have tinted all my windows including the windshield, but the issue persists. The hood on the instrument panel needs to be longer or the glass needs to be non glare. There is nothing on the market that will fix this issue.
NHTSA complaint #11744746 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
When I purchase this vehicle in 2022 the emergency parking break does make a noise when going on D or parking but it wasn't loud about a week ago, and today is June 10th, it started making a loud noise and the Toyota dealership in Lebanon PA does not want to fix it.
NHTSA complaint #11743342 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
The vehicle's infotainment system, specifically when utilizing Android Auto, is subject to recurrent, unprompted UI freezes and interface crashes while the vehicle is in motion. These malfunctions are induced by a persistent server-side enterprise management policy ('DISABLED_BY_ADMIN_POLICY') applied to the connected mobile device. The resulting software-induced failures cause the vehicle's display to freeze or become unresponsive, creating a severe and unpredictable distraction to the driver while operating the vehicle. Despite documenting these incidents, the manufacturer’s support team has refused to remediate the software conflict, instead instructing the user to power down the device during operation. The interface failure persists across multiple driving sessions, presenting a continuous risk of operator distraction and loss of critical navigation/safety data.
NHTSA complaint #11741399 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
Replace Heater Control Valve - Diagnostic code P2681 indicates an internal electrical failure within the heater control valve assembly, a condition commonly seen on Toyota vehicles. Testing showed the electrical portion of the valve is open and no longer maintaining proper circuit continuity, requiring replacement of the heater control valve assembly.
NHTSA complaint #11739095 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
This Complaint is not about a specific incident, but about excessively-brilliant (blinding) headlights. In the flow of traffic, the blinded drivers far outnumber the vehicle using blinding headlights. The area those headlights cover spreads out so WIDE, the blinded driver is not able to see the side of the road. Insurance companies may say this problem does not cause accidents; but, I believe that is because many drivers do not dare risk driving at night. Excessively-brilliant, blinding, headlights should be BANNED and Recalled. Those headlights are a terrible safety concern and should have been banned years ago.
NHTSA complaint #11738181 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
I traded in my 2022 Corolla LE for a 2026 Corolla SE and I got my car on December 19th, 2025 and ever since I got it, the wireless charger hasn’t been working not once. I turn it on, it charges and the light is green and after a few seconds, it stops charging and flashes orange repeatedly. I tried it with different phones, without a case, and brought it to the dealership where they replaced the wireless charger but the issue continued with the new charger, so they put back the original one. The dealership told me it’s a defect issue and that other people had similar issues.
NHTSA complaint #11737082 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
The "Engine Maintenance Required" signal keeps coming on when I start my vehicle and the A/C is on. It is a fault of a code for the bypass coolant valve, which is in perfect condition. I just took my vehicle for the regular maintenance over the weekend. The regular "Maintenance Required" signal went off after picking it up. After an hour or two, the "Engine" signal reappeared. This is a common issue in the Toyota's and I shouldn't have to be financially responsible for a faulty code.
NHTSA complaint #11735673 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
I purchased a vehicle that was represented as having approximately 92,000 miles. I have since discovered the actual mileage is approximately 260,000 miles, which indicates odometer tampering. This is a violation of both federal and California law. I have documentation supporting this claim.
NHTSA complaint #11733445 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
I received a "do not drive" recall for my vehicle in the mail because of defective air bags. The recall letter claimed that there have been twenty-eight confirmed deaths in relation to this recall. I entered Priority Toyota of Chesapeake, VA to address the issue. That was on Monday, April 6th, 2026. Even though there was a "do not drive" order on the recall, Priority Toyota of Chesapeake refused to give me a loaner vehicle. It is now Monday, April 13th, and Priority Toyota of Chesapeake has claimed that they are still waiting on an email to begin repairing the vehicle, which I need for transport. This is a formal complaint that Priority Toyota of Chesapeake, VA has failed to repair the recalls to the vehicle in a timely manner.
NHTSA complaint #11730961 — an unverified report by a vehicle owner.
UNKNOWN OR OTHER
Coolant water control valve short circuit. Causes dealer message that won't clear and dealer wants $600 to replace a $30 part. Part is extremely difficult to get to and should not be a wear item.
NHTSA complaint #11730593 — an unverified report by a vehicle owner.