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Acceleration & cruise control

Scion TC Acceleration problems by year

34 complaints filed with NHTSA about the Scion TC's acceleration & cruise control. Unintended acceleration, surging, throttle problems and cruise or adaptive cruise faults.

Acceleration complaints by model year

YearAcceleration complaintsCrashesInjuriesRecalls
20151000
20111000
20098410
20085300
200711940
20058360

Latest TC acceleration complaints

2015 Scion TCTransmission & drivetrainElectrical systemAcceleration & cruise control

Transmission does a harsh/jerk downshift when coming to a stop. It does it randomly, usually when coming to a stop slowly. It's not safe, feels like the car lurches into 1st. Toyota reset the computer and it was ok for a bit but came back. I'm thinking it's the software of the car. Toyota said it's a learning transmission, but somethings wrong. It's scary to drive in traffic, and only have 33k miles. The transmission fluid was change by toyota last year with the ws and it has not fixed this issue. I'm worried the car may stall in stop and go or lurch so hard firm the 2-1 downshift that I might hit the car in front of me and cause an accident.

Filed Incident Power train · Electrical system · Vehicle speed controlNHTSA 11399316
2008 Scion TCAcceleration & cruise controlBrakesEngine & cooling

My engine had to be replaced, but instead of getting a scion they got a corolla engine, so now my car drinks too much gas. The brakes stopped being stop close to on the dime after they fixed the engine, and replaced the tires. When they changed the tires they used impact studs/bolts. Every time I use cruise control it goes faster a little no matter if it's up or down hill. I have to push down to slow it down.

Filed Incident Vehicle speed control · Service brakes · EngineNHTSA 11019843
2008 Scion TCSteeringAcceleration & cruise controlCrash

Tl* the contact owns a 2008 scion tc. While driving various speeds, the steering wheel turned in both directions independently. In addition, the vehicle jerked when the accelerator pedal was depressed. The vehicle was taken to a dealer where the failure was undetermined. The vehicle was not repaired. While driving over a speed bump, the vehicle spun out independently. The contact lost control and the vehicle spun into the grass and stalled. A police report was filed. The vehicle was towed to the contact's...

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residence. The vehicle was taken to an independent mechanic where it was diagnosed that the tie rod needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 140,000.

Filed Incident Steering · Vehicle speed controlNHTSA 10862856
2005 Scion TCAirbagsAcceleration & cruise control

Tl* the contact owns a 2005 toyota scion tc. The contact stated that the driver's side air bag warning indicator was illuminated. The contact also stated that the horn and the cruise control was inoperable. The vehicle was taken to a local mechanic who diagnosed that the module was defective but did not disclose which module. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 88,000.

Filed Incident Air bags · Vehicle speed controlNHTSA 10598653
2009 Scion TCAirbagsAcceleration & cruise controlBrakesCrash1 injury

I purchased a 2009 toyota scion from the fairfield, ca dealership . I was on the freeway when my car accelerated up to a faster speed than I wanted I tried to correct it in the confusion and not understanding what was going on I lost control and crashed into another vehicle. There was 10,000.00 Of damage to the car it was repaired but then I had another accident in the same car again sitting at a stop light I barley tapped the gas pedal my car jumped into a high speed smashing into the car in front of me after I...

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hit I turned around to check on my child thinking a car had hit me from behind but it was not another car it was just mine but then it did it again smashing into the car again. It was crazy I had no idea what was going on my face was smashed up pretty bad 2 black eyes and fat lips extra. My car hit the car in front of me so hard it smashed into the car in front of it. Now gather I was already stopped sitting and waiting for the light to turn green what caused my car not once but twice to smash into the car in front of me. My car was totaled. I had the worst time with this car it seemed like I was driving with a dark cloud over me. Not only was the acceleration a problem but the trunk lid also broke off and my seat belts did not work properly. There also was a problem with the brakes sometimes if I was on a steep hill the brakes would skip and not catch almost like it would jump. *Tr

Filed Incident Air bags · Vehicle speed control · Service brakesNHTSA 10492970
2009 Scion TCAcceleration & cruise controlCrash

Tl* the contact owns a 2009 toyota scion tc. The contact stated that as he was entering into a parking space, the vehicle abnormally accelerated. The contact then crashed into another vehicle as he shifted into park. There was no warning lights illuminated. There were extensive damages to the front end of the vehicle. The police were notified and a police report was filed. The manufacturer was notified who sent a representative to further access the failure but the representative was unable to duplicate the failure. The failure mileage was 35,000. Updated 01/15/13*lj updated 1/24/2013 *js

Filed Incident Vehicle speed controlNHTSA 10487327
2009 Scion TCAcceleration & cruise controlCrash

2009 Toyota scion. Consumer states unintended acceleration *tgw the consumer stated the sudden acceleration occurred as she placed her foot on the accelerator after being stopped at a red light. The vehicle took off at a high rate of speed. The foot break did not work and when she grabbed the emergency brake, the vehicle went into a spin. The left front wheel slammed into the curb and the vehicle came to a halt.

Filed Incident Vehicle speed controlNHTSA 10482989
2009 Scion TCAcceleration & cruise control

Tl* the contact owns a 2009 toyota scion tc. The contact stated that while stopped at a traffic light, the contact attempted to accelerate and the vehicle suddenly accelerated independently without warning. The contact engaged the brakes but failed to stop the vehicle. Then the contact applied the emergency brake which caused the vehicle to spin out of control. The vehicle came to a stop without crashing. The vehicle was taken to an independent mechanic for a diagnostic test. The manufacturer was made aware of the failure who decided to send an inspector to the independent mechanic to inspect the vehicle. The inspector was unable to diagnose the failure. The failure mileage was 25,000.

Filed Incident Vehicle speed controlNHTSA 10474095
2005 Scion TCBrakesFuel systemAcceleration & cruise controlCrash

I was on my way to work when the vehicle in front of me came to a complete stop. I was approx. Three car lengths behind her (which is plenty of distance at 25mph) when I applied my brakes though nothing happened. They made a grinding noise (like the pads were gone, but they are new ceramic pads). I ended up hitting the vehicle in front of me. I got a citation for following to close, which is $260.00, My insurance was increased by over $100.00 A month, I had to pay for her car plus $3750.00 Of damage on mine. She...

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didn't have insurance and was driving on a suspended license.When I told the officer what had happened with my car he just looked at me as if I was stupid. This is a major problem that is and has cost people a lot of money, not to mention being without a vehicle. *Tr

Filed Incident Service brakes, hydraulic · Fuel system, gasoline · Vehicle speed controlNHTSA 10453946
2011 Scion TCAcceleration & cruise control

The second time this happened to my vehicle I was driving on the freeway at 7:00am on 2/6/12 on the 215 s. Going around 75mph. The accelerator pedal floored all the way down as if someone had their foot on it. I panicked and had no idea what to do but press the brakes. As I pressed the brakes the car jerked me around. I noticed cars in front of me starting to slow down as I was entering traffic. By that time my car was going 100mph on its own because I had removed my feet from the petals. I last minute reacted and...

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put my foot under the petal and propped it up myself and it immediately slowed down. When I took it to the toyota dealership in san bernardino they told me there was nothing wrong with it and I had to pick it up. I was very upset that they were not taking me seriously only because I was not in an accident. I did not feel safe and returned the car to them after having to pay them some money. I asked what they would do with the car and they said they would resell it. When I showed concern for the next owners safety they told me "it is not your problem anymore" I was very dissapointed because I have been a loyal toyota customer since the day I turned 18 and have only bought toyotas. I still can not beleive that they will resell it the way it is after they know what has happened to it not once but 2 times before, it is only a matter of time before it happens to that car again. I am pregnant and am very thankful that I reacted on time and was able to prop the petal back into place if I hadnt I have no doubt in my mind that me and my baby could have got really hurt not to mention the other drivers around me. Please contact toyota and have them do further tests on the vehicle before it results fatal once again it is not the first time this has happened to toyota. ( Also, I had no floor mats in my car at the time of the incident). *Tr

Filed Incident Vehicle speed controlNHTSA 10451234
2007 Scion TCAcceleration & cruise controlCrash

Tl* the contact owns a 2007 toyota scion tc. The contact was driving approximately 25 mph and depressing the brake pedal when the rpms increased excessively and the vehicle would not respond. The contact lost control of the vehicle and crashed into the rear of another vehicle. No one was injured. The vehicle was taken to the dealer, but the dealer was unable to diagnose the failure. The manufacturer was not contacted and the vehicle was not repaired. The current mileage was 69,000 and the failure mileage was 63,385. Updated 3/14/12*lj

Filed Incident Vehicle speed controlNHTSA 10444371
2005 Scion TCTransmission & drivetrainAcceleration & cruise control

As I was driving down the highway I accelerated to pass and it seemed as if my throttle shorted out. My car's rpm's dropped and I started to decrease speed. I removed my foot from the accelerator and it seemed to catch again, but as I pushed the pedal again my accelerator went out for a second time. At this point and my engine shut down. I shifted into neutral and tried to restart my car multiple times while rolling with no success. I had to try to maneuver my car through traffic with no power, rolling at a...

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speed of about 40 miles per hour and decreasing rapidly while on the highway with a speed limit of 65. After I made my way over two lanes to the shoulder I tried to restart my car and it would catch and then turn off. I waited a few minutes and tried again, it started as if nothing had happened and I continued on. I could not take my car to the shop but planned to take it the next monday. On my way home on a sunday evening I was driving on one of the busiest streets in arlington, tx and the car started to shut down on me again. I pulled over and turned the vehicle off and waited a few minutes as I have done before and headed home. As I was driving again the car's throttle went out completely and I could do nothing except roll down the street. As I pushed the throttle my car would not exceed 2,000 rpm's and the max speed was 25 mph. I made it to a safe spot after rolling for about 2 miles at 12-20 mph on a 45 mph road. I had to wait until monday before I could have someone tow it away. The salesman and I did the research on the scion tc and assured me before purchasing the car, that acceleration was not a problem. I was concerned due to the problems toyota was having however I did not see any recalls or major problems except airbags, windows, and the sunroof recalls. I was expecting a great car, with great safety features and durability but issues with a throttle body going out while on the highway is a major concern that needs to be investigated. *Tr

Filed Incident Power train · Vehicle speed controlNHTSA 10357146
2009 Scion TCAcceleration & cruise control

Tl* the contact owns a 2009 toyota scion tc. While driving at 25 mph and depressing the accelerator pedal, the vehicle began to independently decrease in speed. The contact removed his foot from the accelerator pedal and the vehicle accelerated at an abnormally rapid rate of speed. The contact was able to stop the acceleration by depressing the brake pedal. The vehicle was taken to the dealer but the dealer was unable to duplicate the failure. The failure occurred once more but he had not contacted the dealer or the manufacturer to report the failure. The failure mileage was 3,000 and the current mileage was 11,000.

Filed Incident Vehicle speed controlNHTSA 10345879
2009 Scion TCAcceleration & cruise controlCrash

2009 Scion driving clear weather, dry pavement 40 mph on the entrance ramp to a divided highway, suddenly careened out of control crossing 2 lanes, hitting left guard rail, spinning 180 degrees and hitting right guard rail. Damage not yet assessed $10.0 Estimated. Tried to down shift to slow car but burned clutch trying. Second sudden acceleration in this vehicle. *Tr

Filed Incident Vehicle speed controlNHTSA 10331177
2007 Scion TCAcceleration & cruise controlCrash1 injury4 deaths

Leicester, mass. -- Police say it appears the four teenagers who were killed in a car crash in leicester were wearing their seat belts, as was the lone survivor. Leicester police chief jim hurley says neither alcohol nor drugs was a factor in the crash. Hurley estimates the 2007 toyota scion was traveling about 75 miles-an-hour on a residential street in the central massachusetts town late friday night. He said the car veered out of control and hit the tree. Killed were the driver nathan plaza, 17, of leicester...

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-- and three passengers bryan rossik, 17, of leicester, julianne caron, 18, of north brookfield and courtney butcher, 18, of worcester. Seventeen-year-old lauren bennett remains in critical condition.

Filed Incident Vehicle speed controlNHTSA 10322585

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data

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