2021 Toyota Corolla Forward collision avoidance Problems

“After purchasing my Corolla my car powered down. I took it back to the dealership and they checked it and stated there was nothing wrong with it. This was in november 2020. On 1/16/2021 I was driving on a highway and the same thing happened, everything just powered down. I was fortunate enough to get the vehicle off the road and called the dealership. This was around 6:00pm. I then called my family and told them where I was and what happened. A passerby stopped to assist me and got my car running by jumping it off. …”

“My 2021 Toyota Corolla, with 3000 miles and less than a year on it, is repeatedly exhibiting a check gas cap warning message followed a day or two later by a check engine, visit your dealer warning. This has happened twice. I have returned to the dealer once to have the system reset, after which the same sequence of warning messages recurred. This message wipes out my dashboard display and keeps me from using my cruise control and radar distancing feature. I have not yet determined what other safety features are neutralized by this recurring malfunction. …”

“Around 1900-2000 miles of ownership, 6 months after purchase, I was driving on I95 in the rain, 65 MPH, traffic in West Palm Beach, Fl, on my way to Apple(Mall). Upon exit, my engine completely stalled out. I pulled off road, not smoothly at all, turned off the car and it restarted 30 minutes later so I resumed my travels. The next day, my vehicle alerted me that the communication module had blown, not in those words. I had called Toyota and told the representative of the spoken alert and she informed me to go to dealership. They were clueless how to fix and reset battery. …”

“The problem seems to occur when activating the Full-Speed Range Dynamic Radar Cruise Control (DRCC) feature, as detailed next. During a recent trip, the car behaved in a potentially dangerous, life-threatening manner when the DRCC function was activated. Specifically, the car seems to increase the RPM of the engine to dangerous levels when going down a slope even if there is a speed limit set using the cruise control. In other words, the car does not change gear properly to keep the RPM in normal ranges. …”

“The vehicle does not keep the set speed. Ex. When cruise is set to 65, the vehicle will remain at 64 never making it to 65. This occurs with clear road ahead and no traffic.”