I had to drive around 600 miles to and from family funeral. As others have reported the cruise control on a down hill slope goes out of control. As I reached the top of a hill and started down the cruise control would accelerate to 4000 RPM ( it is really loud) the speed would start increasing and go 15-20 mph over what the cruise control speed was set at. I had to turn off the cruise control to regain control over the speed. I was afraid that something might happen if I did not. Where it seemed my car should down shift it was not. Something is wrong with the programming of the cruise control. This should not happen on a decline. Also, at one point when I was in the left lane and a car passed me on the right, my car slowed down really quickly. If someone had been behind me it could have caused a serious accident. This is my fourth Toyota and I have never had these problems before.

- Coon Rapids, MN, USA

My car was in drive and my foot was on the brake so I was not accelerating. I was in a turning lane to enter a business. My car shut off completely and the lights on my dash lit up. I waited a few minutes and took the keys out of the ignition and was able to start the car again. I've also had issues in the past, on multiple occasions, where I turn my key in the ignition and the car will not start. This issue has happened multiple times (even when it was brand new) and no one has been able to duplicate it as it happens randomly.

- Ocoee, FL, USA

Shifting of transmission in vehicle hesitates and/or is inconsistent upon sudden acceleration or deceleration, making it difficult for the driver to determine the acceleration of the vehicle versus other cars on a busy street. There have been numerous instances in which the car is not shifting appropriately and I am unable to accurately judge entering traffic from a residential neighborhood onto a busy intersection as the car will sometimes shift/react to the driver and other times not. At times the transmission reaches and remains at 7, 000 RPM (in red) without shifting and/or is slow in response to acceleration. A campaign recall was issued by Toyota for which the transmission software was reprogrammed on the vehicle; however, these issues still remain. My ultimate concern is the safety of my children and myself when driving this car as I am not always able to predict how it will drive upon sudden needs to accelerate or decelerate. It is most notable in stop and go traffic, stops on a hill, or need for increased acceleration getting on the highway. Weather temperature, high winds, passenger load all seem to be variables in how the car shifts. The car drives/shifts inconsistently from day to day. When not shifting, it raises major concerns I will make the wrong determination when judging traffic that may cause an accident. I have consistently raised these concerns with the dealership from the time of first oil change (purchased new) to current (31,000 miles). Toyota has also reviewed; however, I am concerned there is bias in the true operation of the vehicle as there comment was "driving as designed'. it was stated by Toyota that it costs several million dollars to update the software and that it would not be updated until enough of these cases were known. I am submitting this request for an independent review of the transmission issues in this model year.

- Overland Park, KS, USA

Toyota special service campaign jsd. Understand that Toyota has notified dealers there is a know defect with the cvt transmission. However, as an owner I have not been notified. Transmission does not operate smoothly when driving. Toyota is attempting to correct with a software update, but they are not actually disassembling the cvt transmission to check for problems\unnecessary wear. This needs to be a recall, so owners will be covered in the likely event the cvt transmissions break in the future due to the known defect issue and the vehicle is out of warranty. Appears Toyota is trying to save money by not issuing a recall, and just trying an inexpensive and inadequate software update with investigating whether the problem has caused damage to the transmission.

- Houston, TX, USA

Vehicle was stopped at a traffic light and when the light turned for a left turn I tried to accelerate to get through the intersection when the vehicle lost power. This has happened on three occasions and I took it to the dealership to get it checked and they said they could not replicate it. Transmission has not been shifting correctly and now the transmission is making a strange grinding noise. This Corolla has a cvt transmission and the Toyota Corolla forums are telling me that Toyota is aware of this problem and had issued a special service campaign to update the software. This has since been rescinded because the update did not fix the problem.I have read that this loss of power is causing some serious safety concerns, especially if it happens on high speed highways.

- Colorado Springs, CO, USA

While driving down a downgrade with the cruise control engaged and set to 65mph, the cvt transmission seemed to downshift, the RPM's increased and the vehicle accelerated to well over the speed limit. It felt like I was losing control. I had to activate the brakes to disengage the cruise control in order to reduce my speed to below the posted speed limit. I tried it again on another downgrade and the same situation was duplicated. I did not take the car into a dealer since the issue has been reported to dealerships with a solution to this problem.

- Venice, FL, USA

Motor, power train...

- Barranquitas, PR, USA

On the road in puerto rico the traction and pre collision system is not function normally and have a collision and the SRS curtain airbag crasched for becaue of the collision and the transmision have a sound...

- Barranquitas, PR, USA

I just purchased a 2017 Corolla xse in Feb 2017. The first time it happened I had the cruise control on and was traveling to work at 05:15, and I came to an overpass and on the way down the normal overpass over a cross street, I heard the engine rev and I looked at the tach, and it was at 5000 RPM. I was startled. The same thing happened at the next overpass. This time it was 4000 RPM almost at the bottom of this rather short average downhill. This is still happening, but occasionally it does not. How could this possibly be correct. I can control the speed quite nicely with my foot on the accelerator without hardly any variation of my RPM's. this just doesn't make sense. I am not talking about a long downhill road that has a lane for trucks on the right, where they would have to downshift to maintain a safe speed, this is just overpasses on a freeway system. I asked my salesman, and he said that it was probably normal, and I said how could it be normal for this thing to rev at 5000 RPM on a houston freeway? I only have 5000 miles on this car. This will definitely affect the mileage. I am beside myself at this point.

- Seattle, WA, USA

I own a Toyota Corolla 2017 since 1/14/17.car shows 2 main issues: 1)- cooling fluid evaporates continuosly or decreases from fluid tank at about 1/4 of in. X month every time I've checked it in. I, first, refilled it once with correct or same fluid.it kept evaporating at the same rate.then, I reported it to dealership it was sold. 2)- shift lever or gear control; this car comes with cvt automatic trans- mission, every time I shift speed gear and move knob from parking to drive position and vice verse, the shifting doesn't ocurres correctly or got stuck in the previous speed temporarely and then it moves to position I shifted. When car is apllied brake pedal to park car in plain surface areas(parking lots, city streets) and speed gear knob is placed in parking position, car moves back and forths 2 to 3 times and then stop completely. Both issues were reported to dealership. In a programmed service car asked to dealership due to manufacturer's car warranty on June,11th/17 both issues were reported to dealership technician performing car services. According to technician's report and words, cooling fluid tank was refilled to correct levels, computer checking was applied and failures codes weren't found either on the cooling system or automatic transmission system.technician also reported that farther observation would be needed in case of transmission shifting issues, but it would take my car parked in dealership service areas for 3 hours before he tries any attempt to dissamble any transmission parts or any farther testing. Up to present, either issues haven't been addressed or fixed by dealership's technicians and both issues keep happening.

- Brandon, FL, USA

The transmission (cvt) doesn't respond when accelerating leaving a stop sign causing a delay in moving and we fear will one day cause an accident as it won't get out of the way of other traffic. It also doesn't shift correctly (it revs too high before it shifting) even though it is an automatic. To us it seems like a hazard to us and others on the road. Toyota maintenance says it is normal, but this is ongoing since we purchased the car.

- Silverton, OR, USA

On 3/22/17 I was driving an enterprise rental car into an apartment complex and pulled in front of the leasing office to park. While stepping on the brake pedal the car did not stop and it suddenly accelerated causing the car to crash into the pillars of the leasing office with force. Airbags deployed and my passenger and I had to crawl out of the rear passenger door to escape the vehicle. We are lucky to be alive and escape with minor injuries. There are drag skid marks on the ground from the rear wheels. Upon collision the engine shut off even though the key was in the run position..

- San Diego, CA, USA

While using cruise control on fairly level roadway, (rural road) at a speed of 45 mph, the RPM were about 1500, but increased suddenly to about 4500 RPM. After awhile the RPM would drop back down to normal for the speed situation. This occurs also at highway speed of 60 mph in our area. This occurrence has happened many times. Have returned to dealer twice now. Problem was observed by service manager and local Toyota rep who was in town for local auto show. Car was analyzed and data send to engineer in California who later said car is behaving normal. I found that hard to believe as both loaner cars (2017 Corolla) did not behave in this dangerous fashion. I feel this quick brush off by the engineer (tanaka) who is only observing data and not having to drive this car is wrong. I feel the computer should be adjusted for the cvt to solve this problem. Wife does not feel safe driving this vehicle. We have taken 3 videos to document this event.

- Auburn Township, OH, USA