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.

Rav4 2019 - We lost engine power while driving on the highway at 75 mph. We were in the #2 lane and were fortunate to be able to coast to the side of the road. Quite scary as there were semi trucks behind us.We had been driving for approximately 3.5 hours on the highway at 70-75 MPH. The outside temperature registering on our vehicle began at 110 and continued to increase on up to 118 degrees at the time of the incident. When we lost engine power, the following errors began flashing on the dashboard: PKSB Malfunction, Pre Collision System Malfunction, Secondary Collision Brake System Malfunction. We cleaned the sensors, turned the car off for 5 minutes and then turned it back on. Same warnings appeared. Got towed to the Toyota dealership. Next day all malfunction warnings gone. Car was behaving normally. Toyota service team was unable to reproduce the problem. They inspected the electrical, battery, sensors, etc. but could not find anything. Ultimately the service lead stated that the intense heat could have caused sensor malfunction. Scary!! We fortunate!

While driving or stopped at a light, car will switch drivings modes to “mud and sand” turning off the vehicle stability control and pre-collision system warning light will illuminate. After pressing desired mode, car will switch back to “mud and sand” at varying intervals resulting in me pressing the desired mode constantly while driving.

A Hybrid System Malfunction warning appeared about 1 week ago. The car was taken to the Toyota dealer who said that the car was safe to drive and that they would need to order a part and it will probably be weeks before they get it because so many other cars have the same problem. Three days later the car will not start with several errors including Brake Power low, PKSB Malfunction, and Precolllision System Malfunction. Toyota is not providing any coverage for any of our repair, car rental or now the need to tow the car.

Initially thought a seal on the windshield was faulty, so contacted the business who replaced the windshield. Business owner came to owner’s house Mon, Nov 4, 2024. He did a thorough inspection of all areas where water was identified by owner (dash, under the dash, on the driver side floor) and confirmed it was not the windshield. He then inspected the roof rack and determined the roof rack was defective and leaking water from the ceiling of the vehicle, down into the dash, and ultimately onto the floor. He recommended contacting Toyota because this was a known issue. By 12pm on Mon, Nov 4, 2024 owner contacted Toyota alerting them to the issue. An appointment was made to bring the vehicle in for inspection on Mon, Nov 11, 2024. Owners do not have a garage or carport, so a canopy was pitched over the car in an effort to prevent any further water damage and moisture absorbing canisters were placed in the car. The vehicle was not driven in the rain during the period after first noticing the leak and bringing it in to the dealership. Evidence of Electrical Damage: On Friday, November 1, 2024 the driver side seat became extremely hot, to the point of needing to pull over and turn the car off. The seat heater was not turned on at any point during this time. On Saturday, Nov 9, 2024 and Nov 11, 2024 while driving on the highway, the car (normally driven in Eco Mode) unexpectedly switched into Mud&Sand mode and all safety features switched off. Owner was unable to manually override this occurrence. The “Normal” button did not work. After a few minutes, the vehicle switched into the default setting and owner was able to put it back into Eco Mode. On Nov 11, 2024 owner brought vehicle into Toyota for diagnostics. Owner requested that the electrical components also be inspected and was told it was not covered under the Customer Support Program.

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.

Pre-Collision System (PCS) failed. My daughter during sunset (sun glare) struck the vehicle in front of her, that suddenly braked due to sun glare. Toyota hasn't look at PCS system yet and the car is at the repair shop, but I did open a case with Toyota to investigate failure and access onboard data. Auto repair shop will check the system, but no malfunction warning on the car's warning display. There were no warning present prior to accident or post-accident.