Adaptive Cruise Control problems of the 2019 Toyota RAV4

While driving in the mountains on a hot day, the car suddenly reported numerous faults, including check engine, parking brake malfunction, pre-collision system malfunction, awd system malfunction, and secondary collision brake system malfunction. The car lost power and forced us to pull over on the side of a dangerous mountain highway. We powered-off the car for a few minutes and started it again and were able to proceed to our nearby remote mountain destination without another loss of power, but the faults remained. The next day we were able to get the car to a nearby napa store to read the check engine codes, which there were only 2 of the "p0087" code. I had them clear the fault codes in order to be able to safely drive the car (~120 miles) back home. Some quick research shows a known issue and TSB for that in our exact high-altitude and high-temperature situation - Toyota t-sb-0058-22, related to a known design flaw with the ecm and fuel suction tube. Luckily, it did not throw the errors again during our drive home. I made an appointment at our local autonation Toyota arapahoe for the following week. I detailed the issue and provided pictures of the errors - including the code reader display. The dealer claimed to not find any issues and refused to address/execute the TSB, stating that the code must be active and present in order for them to fix it and that my pictures were not sufficient proof. I explained that it was an unacceptable safety risk to have left the car in that state and that the issue is known to only occur in certain conditions (e. G. High-altitude, high-temperature mountain driving). Issue remains un-addressed, which is highly unacceptable and poses a serious on-going safety risk.

I was stopped at a red light. When the light turned green and I pressed the gas, the engine sputtered and almost shut off. Just before I came to a stop, the engine revved up and the vehicle accelerated. The uneven acceleration is concerning. I recently replaced the gas cap and serviced the fuel system, which leads me to believe there is a defect with the engine. Later in the day, the check engine light went on and awd system, cruise control, and lane assist were disabled.

In line at a restaurant drive through around 2pm, raining, wipers on. Engine cut off and power steering low message displayed. Car would not restart for several (30 minutes) cause unknown. All battery, starter, alternator test came back fine.