2019 Toyota Avalon

Ever since, I purchase my certified 2019 Toyota Avalon in around June 2022, my car has left me stranded on highways, city areas, and broke down coming out of my garage. I even purchase extended warranty, because of the high mileage it had 77,000 miles. On [XXX] car broke down Drive Belt had to be replaced, [XXX] [XXX] warning lights, dealership service technician couldn't figured out why engine was slowing down the vehicle, engine repair evac leak for gas cap, [XXX], while driving my car the vehicle, my car immediately stopped, it was towed to dealership of Larry H Miller on Alameda in Albuquerque NM, caused of my car stopping on the road in Albuquerque, the technician stated that he found DTCS for Missfire, switched coil to different cylinder and codes went away/on [XXX], my car was towed, because engine stopped while driving, the dealership saw that it was an electrical problem, bad battery on [XXX] car dashboard lit up like a Christmas tree, showing electrical malfunctioning of secondary braking system, the car must be towed to the dealership. I was lucky to get the car into a parking area of gas station. I am [XXX], I need to get home and take my [XXX]. So, while in Albuquerque New Mexico, I called for a tow truck to pickup my vehicle because I have triple AAA membership. Since, I have another car, and I needed to get that day June 30, 2026. I had to wait until today July 9, 2026 to have triple AAA to pick up my car and take it to the dealership Larry H Miller Toyota on Alameda, Albuquerque, New Mexico. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

UA80 transmission issues. High pitched whining Erratic and hard shifting shuttering and hesitation Issue has been diagnosed by dealership Toyota Technician and independent service center ASE Certified technicians. Car is still drivable, with no warning lamps as of yet. Issue became more noticeable after I had the transmission fluid changed by dealership.

The transmission needs to be replaced. My car has 75,146 miles and my check engine light came on while I was driving down the interstate. I took it to the Toyota dealership and they confirmed that the transmission needed to be replaced. I was told it would cost $8,600. I was looking for any recalls on my car and saw there were multiple lawsuits involving the transmission in my car and other Toyota and Lexus models. The primary lawsuits involve millions of vehicles equipped with the UA80 8-speed automatic transmissions.

I am writing to formally report a serious and ongoing safety issue involving the Telematics / Data Communication Module (DCM) installed in Toyota vehicles. This issue presents a clear risk to driver and passenger safety and warrants immediate corrective action. The DCM is responsible for critical telematics and safety systems, including SOS Emergency Assistance, Safety Connect, and Remote Connect. Failures of this system are not merely inconveniences—they directly compromise emergency response capabilities and vehicle reliability. Documented Failures and Safety Risks: Severe Battery Drain: Defective DCM units drain the vehicle battery even when the vehicle is off, leaving drivers stranded and unable to start their vehicles—potentially in unsafe or remote locations. Loss of Emergency Services (SOS Failure): Malfunctioning DCM systems disable or impair SOS functionality, preventing drivers from accessing emergency assistance during critical situations. This represents a direct risk of injury or death. Loss of Connected Features: Remote Connect capabilities (remote start, unlock, vehicle monitoring) are rendered inoperable, indicating systemic communication failure. System Errors: Persistent errors such as “Connected Device Not Supported” demonstrate loss of communication between the DCM and the vehicle network. System-Wide Malfunctions: In severe cases, DCM failure can disrupt the infotainment system or broader vehicle functions, effectively “bricking” key systems. Demand for Immediate Action: Given the safety implications—particularly the failure of emergency SOS functionality—I am requesting that Toyota take the following actions without delay: Issue a voluntary safety recall for all affected vehicles, or Provide a cost-free repair or firmware update that fully resolves the DCM defect, and Notify all affected owners proactively of the safety risk and available remedy. If this issue is not addressed promptly, I am prepared to escalate this matter through formal

Engine does not start or takes longer to start because fuel line does not hold pressure after turning off engine.

I am experiencing the same malfunction with my backup camera/parking assist software that a million other VINs were recalled for. I called Toyota and was essentially told that not enough people from my cars' "batch" have complained. The malfunction is inconsistent, sometimes the camera works fine, sometimes the screen is totally black, and sometimes it freezes or goes black in the middle of backing up. This is incredibly hazordous.

The contact owns a 2019 Toyota Avalon. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated, and the engine seized. The contact stated that a good Samaritan attempted to start the vehicle, but the vehicle failed to restart. The contact waited for thirty minutes and stated that while attempting to start the vehicle, the vehicle restarted. The vehicle was taken directly to the dealer. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. In addition, the contact stated that the vehicle had previously experienced several failures since July 2025. The contact stated that the vehicle was taken to the dealer several times, and the oxygen sensor, the oil light sensor, the ignition coils, and the fuel pump extension were replaced. The contact stated that the vehicle had caused the contact anxiety, and the contact was fearful of driving the vehicle. In addition, the contact stated was fearful for her and her grandchildren's safety while in the vehicle. The manufacturer was made aware of the failure, and a case was filed. The contact stated that several cases were filed, and all were denied. The failure mileage was approximately 46,000.

When starting the vehicle, an extremely high pitched noise is emitted from the speakers. This high pitch seems like its comes out full volume out the speakers. Ear piercing noise leaves my ears ringing every time.

The 12.3 in Bird's Eye system with backup camera produces a "black screen" when in reverse and when viewing the forward camera when parking. When driving in snow or rain, the collision warning system becomes unavailable due to the precipitation. I believe these are two separate, but related issues. I also believe that these issues have been observed in other Toyota models which have active recalls in place for the same issue. I took the vehicle to the dealership (Spartan Toyota Lansing, MI) and they were unable to diagnose or resolve the problem. I also reported the issue to Toyota Customer service, pending any resolution. So an ongoing safety issue persists without resolve (ie no required backup camera and also the collision avoidance systems problem during snow or heavy rain).

After starting to accelerate from a stop light ,the Dashboard had a warning message that the accelerator and brake pedals were pressed simultaneously. The acceleration stopped and the car slowed automatically. After a few seconds the warning indicator went away and the car could accelerate. The cars behind my auto had to stop suddenly. At the time. I though that I might have hit both petals at the same time. When it happened again I opened an incident report with Toyota. Incident opened on 07-19-25 Case # 250719000440. The Toyota rep told me it should be take to a Toyota dealer to diagmose any error codes.The next time the same problem occured I took it to my Toyota dealer and was told there were no error codes to indicate a problem. I have also taken the car to a local repair shop after the problem happened and was shown there were no stored errror codes.The dealer wants to have my auto for an extende time to reproduce the problem. If they need error codes to solve the issue but no error codes are recorded when the problem occurs what can they determine? I am hoping that there are other Toyota Avalon owners which might have had the same issue.

Recurring issue with blind spot and rear cross traffic malfunction alerts. Toyota had issued a service bulletin for this concern. Dealer had to reprogram the module under part: 39151 T-SB-0034-19. CODE C1AB4 and C1AB5.

I purchased this Vehicle as a Preowned Used Certified from The Toyota dealership The car has broke down 4 times for the same exact ISSUES All the lights will come on and it will say take to the dealer for Service June 8 2024 purchased the Car. November 2024 in the shop ( sensor ) December 2024 in the shop ( sensor ) NO CHARGE July 8, 2025 car had to stay overnight ( ignition coil $300 ) Service told me the Mechanical Warranty Expired in June. 8 days later July 17, 2025 Broke down on the highway I was stranded for 5 hours had to pay for a partial Tow out of miles. Its been 6 days no CAR. I DONT FEEL SAFE IN THIS VEHICLE and I Think it has a Defective System. I am locked into a Contract with a Vehicle that keeps Breaking down. I have called the Lemon Law and they said my car is too Old for a Claim but not considered NEW By 1 year. I need some Help, I have reached out to Toyota Corporate and I am waiting to see what they plan on doing. I have been STRESSED OUT SINCE MY LAST BREAKDOWN WITH THIS CAR. BY THE WAY I HAVE ONLY PUT 4000 MILES ON IT SINCE I PURCHASED IT. GOING ON A ROAD TRIP IS OUT. I NO LONGER TRUST THIS VEHICLE IT JUST CUTS OFF FOR NO REASON ONCE THE DASHBOARD LIGHTS COME ON IT JUST STOPS. I CANT IMAGINE HAVING MY GRANDBABIES IN THAT CAR ITS SCARY. Car is still in the SHOP ITS BEEN 6 DAYS NOW.

Jerking and grinding noise in the transmission

After troubleshooting, the issue with my car cannot communicate with my mobile app through Toyota remote connect, cannot update vehicle software, and after a $130 diagnostic fee, the dealer states the DCM module is bad and needs replacing. My question is this is a safety issue, correct?

When starting the vehicle, an extremely high pitched noise is emitted from the speakers. The safety of my young child is at risk every time I start the car because this could cause irreparable hearing loss. This is a known issue across many Toyota models as I've found through online forums. Toyota wants $1,200 to fix the DCM Module when it is a manufacturing issue and not caused by the consumer.

I was pulling into a parking space when the car suddenly accelerated, jumped the curb and hit a tree. The car has auto-braking but this system did not function to stop the car.

A year ago my 2019 Toyota Avalon started displaying a message that the RCD (rear camera detection) was unavailable. I tried working with the dealership that sold me the car, but they ignored me. I went to another Toyota dealership and they said it would cost approximately $2000, but could not guarantee it would fix the issue. I’ve seen online that 1000’s of Toyota owners with the same system have had similar problems, and Toyota frequently responds with, “It’s a rolling computer, and very advanced.” Some were fixed by recalibration, but many have a more serious problem. All the stories are only the people that have posted about it. It’s probably Toyota’s biggest problem. My car was under warranty when it began, but health issues and restrictions kept me from getting the attention of the general manager since I was ignored by others. I feel this is serious enough and has effected numerous people that it warrants an investigation. People are relying on a system that doesn’t work properly, and some have been hurt and many others will be negatively affected by it.

The car emitted a very loud, high pitched sound, lasting several seconds when starting the vehicle, which was very painful. At the same time, red and green lights are seen flashing a few times next to the SOS button. This has happened twice in the past month.

The contact owns a 2019 Toyota Avalon. The contact stated while driving approximately 65 MPH, the "parking brake malfunction" warning flashed. The contact proceeded to his destination and shifted the vehicle into park (P) but did not engage the parking brake for fear that it might not disengage. The contact drove the vehicle to the local dealer where it was diagnosed that there had been a malfunction of the Parking Brake or Cruise Control Malfunction warning message on the MID (multi-information display) with Diagnostic Trouble Code (DTC) C13B0 (Electric Parking Brake ECU Malfunction) NHTSA ID Number: 10172860 (Parking Brake). The contact was advised that the remedy required a software update of the ECU. The vehicle had not been repaired. The contact stated that the failure was intermittent. The manufacturer had been informed of the failure. The failure mileage was approximately 40,500.

I bought the car new in 2019. Car was fine for the first 2 years then it started skipping the gear on low speeds, it does not happen all the time but it does seems to jerk while changing gears in low speeds, occusionally. I have taken the car in to Toyota in Green Bay, WI location and I was told they can't duplicate the issue.