Toyota Tacoma sudden acceleration problems

Filed Aug 28, 2026 · Acceleration · UT

After initial start of engine and at idle there is surge of the engine and lunge forward while in drive. The danger is unexpected forward movement of the truck when pulling forward at idle by lunging forward with risk of hitting that which is directly in front such as a parked car or the front of my garage. This is an ongoing event.

Filed May 21, 2026 · Engine, Fuel system · 75,000 miles · HI

The contact owns a 2017 Toyota Tacoma. The contact stated that while driving, the engine revved lightly. Over time the vehicle began to lunge forward, and the revving had become more intense. The RPM increased and revved. While reversing, the vehicle lunged. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the failure was due to the map sensor and throttle body. The vehicle was repaired, but the failure recurred. The manufacturer was not notified. The failure mileage was approximately 75,000.

Filed Jan 5, 2026 · Engine, Transmission · NY

Vehicle accelerated on its own at highway speed, had to hit the brake in order for it to stop accelerating. Other more common issue is that vehicle RPMs go up when trying to accelerate but vehicle does not accelerate, just RPMs go up. This happened about 5 times over the past year and a half. Most noticeable time was where I couldn’t accelerate after at all until I pulled over and put it in park. Then back to drive again and worked fine. This car has been brought over to Lia Toyota of rockland numerous times with this second issue and they can never duplicate nor fix the problem

Filed Feb 29, 2024 · Acceleration, Airbags · 80,000 miles · AK · crash

The contact owns a 2017 Toyota Tacoma. The contact stated that, upon coming to a complete stop, the vehicle suddenly accelerated on its own. After which, upon attempting to apply the brakes and with the brake pedal depressed to the floorboard, the vehicle failed to stop, prompting the contact to switch off the ignition. As a result of the unintended acceleration and brake failures, the contact collided with the rear quarter panel of another passenger vehicle. The air bags did not deploy. No warning lights were illuminated. A police report was filed, and no injuries were reported. The vehicle was towed to the dealer, who was unable to diagnose the failure, informing the contact that the event data recorder showed the accelerator pedal had been depressed. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 80,000.

Filed Mar 15, 2023 · Brakes, Electrical · AK

Vehicle is designed in such a way as to allow moisture accumulating in drivers side floor mat and carpeting to wick upward and be deposited on the primary vehicle wiring harness located in the drivers side kick panel. The moisture collected travels down into the backside of the various female connectors and corrodes the conductors and receptacles that result in short circuits between the various vehicle components including the ignition, engine shutoff, temperature sensors, Antilock Breaking, Blind Spot Monitoring, Fuel Gauge, Forward Vehicle Lighting (high and low beam), Security, Traction Control and other critical vehicle systems. On February 5th, 2023 I returned to my vehicle to find the security alarm sounding in the parking lot of a local business, both the keyless entry system and key-fob were unresponsive and would neither silence the alarm or unlock the vehicle. After manually unlocking the door handle the alarm ceased, the vehicle started as normal and then began indicating a failure of the BSM system, while underway the ABS indicated it had also failed and upon arrival at our destination the engine would not turn off even with the emergency shutdown routine prescribed for unintended acceleration cases. In addition, the high beams would be triggered by unrelated button operation occasionally fail to turn off, the fuel gauge, temperature readouts and climate control provided unintelligible values. The vehicle was returned to to dealership where it was determined that water from the floormats was able to contaminate and cause systemwide failure. The repair was to replace the entire wire harness which would not be covered by warranty. On 3/15/2023 I reached out to Toyota Headquarters' Customer Engagement team and was advised that Toyota was aware of the problem and had no interest or obligation in rectifying the situation, regardless of my concerns that this presented a clear safety hazard to both operators and the general public.

Filed Jan 9, 2023 · Acceleration, Engine · FL

- Engine throttle went into wide open throttle causing the Unintended acceleration in traffic - The truck was doing about 45mph the passing gear came on and a second I was doing 60mph I quickly applied full pressure on the brakes and the car did not slow down at all, the truck failed to STOP or slow down and was getting closer to the vehicle in front, it was in the Expressway. My only thought was too press the ON OFF button and instantly shut down the passing gear and slowed down. _ The vehicle was dropped of at the dealer for 2-weeks and was inspected no problem found. - There were no warning lamps messages on the screen or voice message at all. I am afraid to drive this vehicle it became a runaway wild horse. If I didn`t react in milliseconds i would of hit the car in front at a high rate of speed causing damage to everyone. I took pictures after right after having full control of the truck. All the record of my complaints of the Tacomas drive train started more than 1 1/2 years ago the records are the facts of Toyotas negligence. I have total fear and don`t trust this truck with my life. Please check the recorded dealer is Doral Toyota and you can speak with the Service manager [XXX]. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Filed Jul 25, 2022 · LA

The accelerator on my truck suddenly accelerates without warning at highway speeds 60MPH and above, as well as residential speeds of 25+ MPH. It also accelerates when coming up to a stop sign and you are slowing down. The Toyota dealership said they were unable to reproduce or duplicate the problem. It is very frightening when it happens because it lasts between 4-5 seconds if you do not apply the brakes hard. There has not been any warning lights or anything that comes up on the dash board.

Filed Mar 22, 2022 · Acceleration, Electrical · 3,500 miles · FL · crash

The contact owns a 2022 Toyota Tacoma. The contact stated that while parked outside his residence and while depressing the brake pedal, the vehicle accelerated on its own. The contact stated that vehicles steering wheel had locked and he was not able to stop the vehicle , causing him to crash into his neighbors home. The contact stated that no warning lights had illuminated at the time the failure occurred. The contact stated that the police was contacted and a police report was filed. There were no injuries reported. The contact stated that the police then had the vehicle towed to a tow yard. The contact stated that he then contacted the manufacturer who advised him that would contact him within 72 hours. The contact stated that he had not contacted the dealer. The failure mileage was 3,500.

Filed Aug 16, 2021 · Acceleration · 75,000 miles · CO · crash · 2 injuries

The contact owns a 2013 Toyota Tacoma. The contact stated that while in reverse and attempting to park the engine RPMs suddenly increased while pressing the brake pedal and the vehicle experienced unintended acceleration causing the driver to lose control of the steering. During the incident, the vehicle crashed into two separate vehicles and a restaurant building serving outside diners. The contact was eventually able to switch gears causing the vehicle to drive forward before turning the engine off and stopping. The contact indicated that the brake pedal was being pressed at the time of the failure but the vehicle continued to accelerate. The driver sustained a mild head injury and one diner was also injured. No further information was available. A police report was taken at the scene and the vehicle was towed away. The cause of the failure was not determined. The local dealer and manufacturer were not notified of the incident. The failure mileage was 75,000.

Filed Jun 2, 2021 · Acceleration, Brakes · NH · crash · 1 injury

June 1st 2021 I went to park in a parking space at a local mall. My truck instead of stopping it accelerated out of control jumped two stone curbs, drove though a fence and landed into a swamp. Call Toyota and they have opened a new case # 210602000065. Police report # 21-374-AC. This isn't the first time that this has happen with this truck. It happen in Aug 2019. I contacted Toyota case number 1908060035. They sent out EAA Engineering Analysis Ass. out who did a ACM.CDRX file a month later. Toyota came back said they couldn't find anything wrong and my case was closed. Another incident in winter of 2016 where my truck was stopped and it accelerated on its own and It drove in the 4 way intersection where it caused an accident. lots of damage to cars. Toyota was contacted and they sent me to a dealer for repairs. Dealership has records of my truck coming in since I owned it with complaints of Truck not moving at all to all of sudden to acceleration on its own.