After the smart technology software was installed on my vehicle the check engine light came on. With the recalls Toyota has been having I felt it was necessary to take my car to an outside entity so I took my car to ntb for a diagnosis and was told that the 02 sensor on my vehicle was failing, the P02420 catalyst was below threshold. The consensus was that when the smart stop was installed that the 02 sensors should of been replaced as well. In addition the codes were flagged shortly after ECU update. Why was this not done as part of the recall" these two go hand in hand. The smart stop recall needs to be recalled or upgraded to include the sensors. My car shutters now when coming to a stop or start, which did not occur prior to the software upgrade. I am afraid to drive it.. I don't know when it will stop altogether and not restart. Will I be on the highway?" this was not thought through and rushed into. As a consumer, I am looking at a huge repair bill that I shouldn't have to if the recall was done properly.

- Akron, OH, USA

Dealer did smart stop technology, upon picking up car noticed it running rough. After driving a few miles it seemed to improve. Over a period of a few months and approx 3000 miles engine performance and fuel mileage have gotten much worse, mileage has dropped off almost 10 mpg! took the car in for nysi today and asked dealer about this. Was told by service advisor that the car had to relearn certain functions. Asked how long this should take and was told a few months? I said to them they it has already been a few months and about 3000 miles. To me this is unacceptable. I will give it a couple thousand more miles and see what happens. If I see no improvement I will be back to the dealer looking for answers. Driving habits have not changed from pre smart stop. This is also a highly maintained vehicle and has been serviced at the same dealer since new.

- Endicott, NY, USA

The contact owns a 2009 Toyota Corolla. When the vehicle was started, an abnormal noise emitted from under the hood of the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 105,000.

- Hermitage, TN, USA

The transmission hits so hard that it feels like you have hit a speed bump. This happens when you try to accelerate to pass.

- Florence , KY, USA

Engine by driving when excelling engine shut off this car was T taken to the dealer up to five times and three accidents. The dealer ship keith pierson Toyota 6501 youngerman circle jacksonville fla 3 2244. Also I have claim number file with Toyota corporations [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Jacksonville, FL, USA

Even when the car was new I always noticed that there are times when I am slowing down to stop and put on the brakes, I feel the car surges before it stops. We complained about it that time when the Camry/Lexus floor mat incidents were in the news. I think there was a recall for that and our brakes were fixed by the dealership. But the problem persists to this day. I also feel an engine surge on my sister's new 2013 Corolla.

- Whitwell, TN, USA

While I was driving the car started stalling really bad and losing power, the engine light came up and I couldn't speed more than twenty five miles, because the car started trying to shut off on me in the middle of the street again. I took the car to get checked out and the troubleshooting codes came out as being the ignition coils due to the engine harness being bad, (difficult to believe I said ), cables don't go bad like that in Florida.

- Pompano Beach, FL, USA

ECU is defective in 2009 model just like in 2005-2008 model. When it reaches 90,000 it brakes. The car starts jerking and doesn't want to change gears. At home all of us drive Toyota Corollas and all of them had the same problem at 90,000 mileage.

- Antelope, CA, USA

Driving on interstate and suddenly check battery light and check engine light came on and temp indicated vehicle was hot. Pulled over as soon as able to safely do so.

- Pierre, SD, USA

Engine idle speed causes flutter and stall-like feel when stopping and stopped. Vehicle has had all routine maintenance per Toyota user's manual. Vehicle has had a "tune-up" from automotive shop per Toyota's specs. No problems have been found to eliminate this issue. Idle speed (rpms) drop below 500 and appear to need adjustment.

- Yuma, AZ, USA

My engine started making a rattle sound when starting it up. I searched online and found several complaints about this problem. It seems to be a defective cam shaft timing gear assembly, which is no longer covered by my warranty. I am upset that this has not been recalled, since it is a serious concern especially when it deals with the vehicle's engine. I hope Toyota will take responsibility for this. There are many people out there with the same problem. Toyota already has had several recalls for this vehicle, so why not back the engine?

- Patchogue, NY, USA

Car recently making a loud rattle when start. Toyota refusing to repair a defective cam shaft timing gear assembly. My car is not covered by Toyota's warranty, but this defective cam shaft timing gear assembly has a tsb with many complaints by customers who own a 2009 Toyota Corolla! this is unacceptable and not safe!!! please address asap...I should not be responsible to pay to replace the cam shaft timing gear assembly that has always been defective. Toyota should recall 2009 Toyota Corolla to repair this problem. Thanks.

- Cumberland , RI, USA

Water pump began to loudly whir after 6 hours of continuous highway driving. 200X miles later, began to rattle. 50X miles later, seized completely. Cost to repair: $70 water pump, $60 labor.

- Venango, PA, USA

Continuous high pitched whining noise. Had to replace water pump.

- Miami, FL, USA

The contact owns a 2009 Toyota Corolla. The contact stated that while driving approximately 25 mph, the motor exhibited a loud grinding noise without warning. The contact continued to drive the vehicle home. The vehicle was not taken for inspection or repairs. The manufacturer was notified of the problem. The approximate failure mileage was 83,000.

- Scanton, PA, USA

At approximately 11:00 a.M. on a beautiful sunny day, I was driving on the pa turnpike at the speed of 65 mph when the power steering in my 2009 Toyota Corolla failed. My car unintentionally veered left and right as if I was encountering hurricane-like strong wind gusts. The car bounced back and forth for approximately 5 seconds, while feeling as if it was floating/hydroplaning, as I attempted to regain control. My attempts at correcting the power steering issue were unsuccessful and ultimately the front right side of my car crashed into the right guardrail. Fortunately, I was unharmed in this frightening accident and the state troopers and tow trucks responded in a timely manner. No other individuals were hurt and there was only minor guardrail damage. My car, however is extensively damaged. I am confident that this was not a result of driver error or unforeseen weather conditions. One of the state troopers that reported to the scene even commented, "everyone out here is driving the same speed as you and no one else experienced any of these wind gusts.' I am an experienced driver who has been driving this car since I purchased it in 2009, with no prior power steering concerns or issues. My car was well maintained and a week before the accident, I had it at the dealership for an inspection, alignment and new tires. I intend to file a claim with Toyota.

- Mckeesport, PA, USA

When slowing down from 65 mph the whole car shakes out of controll. This does not happen every time but pretty consistent now my check engine and traction controll light stays lit while the ESC light blinks. This has happened now three times over past 6 months.

- Chesterfield , VA, USA

I noticed last month a "brief engine knock/rattle noise at cold startup. It has happened every cold start since last month. I did research on the internet, and found a tsb-0087-09 issue regarding this problem. Toyota has since corrected this problems on their 2010 models - but did nothing for the current owners of the 2009 models. With a engine any thing could happen regarding safety!!! I believe it is selfishness on the part of Toyota, for what I call a safety issue. The gear in the intake or exhaust is bad in the engine. Not knowing what it could lead too for elderly that love to drive these vehicles?!!! it is covered under power train warranty - 3 yr/60K. But this is a known problem defect on Toyota manufacturing end - it should be covered no matter what. More people have this issue, and probably do not complain to this Agency. Probably never think to - that is why you may not have more complaints regarding this issue (tsb-0087-09). I wish you would address this Toyota over in Japan. Please keep me posted if any thing will come available for the unfortunate consumer!! [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Tonawanda, NY, USA

The contact owns a 2009 Toyota Corolla. The contact that when the vehicle was cold and first started, there was a grinding noise heard from the engine. The contact stated that the dealer replaced the cam shaft timing gear assembly, but the failure recurred in less than 25,000 miles. The VIN was not available. The failure mileage was unknown, but the current mileage was 98,200.

- Ontario, CA, USA

Car had just been started, was departing a parking garage and power steering suddenly failed, followed by engine failure. Car would not start again; battery was completely drained. Alternator had gone bad and was replaced.

- Venango, PA, USA