Table 1 shows one common vehicle speed control related problems of the 2020 Toyota Corolla.
| Problem Category | Number of Problems |
|---|---|
| Vehicle Speed Control problems |
I am reporting a severe, recurring safety hazard on my 2020 Toyota Corolla. The vehicle suddenly displays 'drive-start control malfunction' and completely cuts off engine power in motion, leaving the car stranded in active traffic. This happened after accelerating from a stop sign on a main avenue. This is an inherent manufacturing defect present since delivery. In total, this chronic electrical surge has burned through 6 batteries and 3 engine control modules (ecms) at different mileages. Within the first weeks of purchase, it burned its first battery, which was replaced at Toyota and documented under the VIN history. Dealer staff deceptively called it 'normal,' leading me to replace subsequent batteries at autozone. [xxx] Toyota received the vehicle 4 times for this exact failure under service advisor [xxx]. They replaced the ecm twice, replaced a destroyed battery on a third visit just 400 miles later, and during this fourth visit on xxx, they only diagnosed the current burned ecm. Under order xxx, I paid for 4. 5 hours of specialized diagnostic labor, but the shop negligently just swapped parts and ignored the root cause. On xxx, an operations chief from Toyota corporate called me under active bec case #xxx. He issued a final, verbal denial for goodwill assistance based solely on mileage and age. Crucially, the operations chief explicitly admitted during the call that Toyota does not know what is causing the ecms to burn out and does not know how to perform the proper diagnostic procedure to isolate the electrical root cause. He gave me to understand that my only option was to pay to replace the computer again and just put the car back on the road without a real fix. He actively refused to provide this denial in writing, forcing an unsafe vehicle back onto public roads. I have all four invoices to prove this chronic pattern. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
I was going to work on 12/15/2022. There was a stop sign and I needed to take a right turn in order to join the freeway-10 east highway to head on to work. It was about 6: 40 am approximate time. There were too many cars ahead of me at the stop sign. My brakes failed to hold on while I waited for my turn. There were at least 3-4 cars ahead of me. Therefore I did not want to hurt anyone or any other car ahead of me. Therefore I veered off to my right-hand side where there was some space and tried to stop the car but it did not do so. Therefore, my car had to hit the high-way pole to come to a stop. The airbags deployed and hit me more to my right side. The car got totaled as per California casualty insurance information. I am glad to be alive. I went later to the hospital as there were no direct visible injuries.
Dealer stated that there was a chemical buildup on the inside of the windshield that could affect the safety camera sensor (they claimed it was probably windex). Dealership claimed that the camera enclosure is not sealed and particulate may enter the enclosure. Said the problem is not covered under warranty. What happens is someone is a smoker or lives on a dirt road? does Toyota expect particulate in the enclosure to be acceptable? this may impact the performance of the safety systems, especially if there is sun glare. I bought the car in October 2019.
I keep having issues where radar cruise and lane assist shut off randomly with the message that radar cruise is unavailable . This has happened since new and has been looked at by Toyota 4 times with no repair.