Warnings problems of the 2019 Toyota RAV4

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.

My 2019 Toyota Rav4 adventure is groaning, especially when accelerating or decelerating, particularly with the awd system engaged. Plus, there no or slow forward collision warning. Toyota seems to ignore these issues related to the adventure Rav4 of 2019 and 2020. Thanks.

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.

A couple of months ago, I noticed water had somehow entered the inside of my car, collecting along the interior roof panel and inside the c-pillar close to the top of the driver door. I did a little research to see if I could figure out what the cause of it was. I found that many other owners of 2019 and 2020 Rav4's had similar problems. Their findings indicated that Toyota had equipped poor quality gaskets, along the the area in which the roof rail trim were fastened to the roof of the car. I also read that this problem could be fixed by the owner, but was unaware that the water leakage would come in contact with electrical components. Yesterday, I experienced first hand the result of this situation. When starting my car, the display board was indicating a multitude of warnings for system malfunctions. These included power steering malfunction, brake system malfunction, pre-collision warning malfunction, lane-monitoring, and on top of this the rpm gauge and engine temperature gauge were both malfunctioning. These warning/indicators persistently flashed and caused a loud beeping sound to go off. The warnings also informed me to not drive the car and see a dealer immediately. After taking it to the dealer, the technicians were able to confirm that water has leaked through the roof rail panels from the area I previously specified. They found water on fuse box/junction connectors. They also found corrosion on pins on driver front door connector, under dash harness connector and body harness connector. While the water damage did not lead to a car accident, it did cause serious concern for the potential risk of car malfunctions. This information will be soon be reviewed by my insurance provider.

I have had my rav 4 since it was brand new. Today while I was driving, the mud and sand screen popped up automatic with traction control light, later I was able to turn it to normal then the light would go off for a while and it comes back again. It all happened while I was driving in I 355 going down to lemont, IL from palatine IL. I had the same problem but not with the mud and sand but with snow back in 2019 when it was a brand new, took it to a dealership and they said they have never seen like this before and they just reset the computer and it went off. I am pretty sure when I first bought it, even I push each and every button of either snow, sports or mud, the traction light wouldn’t come off. While driving on I 355 today, my car slide for a while which was the most scary part, first I assume it was raining but after when the rain stopped too, it was skidding while applying the brake. I have the regular maintenance, just did the brakes with rotors, changed tires, oil change every 3-4k miles. I tried to talk to Toyota 800 number but wasn’t able to connect with them.

This vehicle has continued to have issues. The most recent and dangerous issue is the electrical problems due to water leakage. Water getting into the vehicle's interior can be hazardous with all the solenoids, modules, and wires. The roof rack leaking is a common issue for these vehicles. It does not become an issue until they have been exposed to rainy environments or washed. The water in our vehicle leaked down the driver-side a-pillar, behind the steering wheel, and into the floorboard. This caused a shortage in wiring for the mud/sand terrain modes and the safety systems for the vehicle. This would happen at random times, including down the freeway at 70mph. The adaptive cruise control would shut off and emergency braking would be defective if needed. The water does flow across the airbag in the a-pillar which could cause a more serious issue. Now, there is a possibility of the airbag not deploying in the case of a collision. The racks leaking is something Toyota should be recalling or publishing a TSB.

Car randomly switched the driving modes from normal to mud and sand while a driving on the highway about 55 miles per hour, also said precolision system disable, happened in last 3 days.

Cruise control and other safety issues randomly go off line. When driving cruise control turn off, as do the electronics. Further, the automatic bright lights are random to the point I have to disable the system. I have pics and video, cannot change format, don't know how.