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2015 Toyota Tacoma

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2015 Toyota Tacoma do not stand out strongly from the model-year median of 228.5.

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When problems were reported

Mileage at the reported incident

63 reports with mileage · 38 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Structure. Review the 15 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 12 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

15 crash reports2 fire reports11 injury reports

Vehicle Speed Control complaints

9 reports
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Mileage unknown · Mar 15, 2026
Power TrainVehicle Speed Control

Driving around a winding turn incline , tacoma hesitated at 40 mph while going down incline. Tacoma rpms fluctuates at 40 mph as if the engine is having difficulty accelerating. You can hear the engine stalling or shuttering to catch up to speed. This is occurred driving at a steady 40mph. The Tacoma seems to be stalling out at …

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Driving around a winding turn incline , tacoma hesitated at 40 mph while going down incline. Tacoma rpms fluctuates at 40 mph as if the engine is having difficulty accelerating. You can hear the engine stalling or shuttering to catch up to speed. This is occurred driving at a steady 40mph. The Tacoma seems to be stalling out at a certain speed limit and rpm at 40 mph. It only has this symptom at 40 mph going down an incline. This is dangerous and there were vehicles behind me traveling at the same speed going around a winding turn incline. This could of caused a pile up because of the tacoma struggling to maintain speed and accelerate to keep speed. Ive taken this tacoma to Nalley dealer and they've replicated the problem but thought if resetting driving mode would clear the problem. That did not clear the problem and its currently causing the same issue. The tech seems clueless in whats going on when ive explained that it happens at a certain mph and while going down incline. The tech know that this has occurred when he taken the tacoma on a test run. Some how the tech think a reset of driver style handling is the issue. The tacoma isn' responding to a driver style handling reset. Ive scheduled another appointment with the dealer to have the tech check the tacoma again. There are other years of Tacoma's that have this problem. I believe this particular tacoma has the same issue as the other tacoma years that are under a torque converter recall.The symptoms are identical compared to other tacoma year models under the torque converter recalls.I don' want this problem to become a hazard where the tacoma cause a massive pile up in traffic because of the unstable mph at 40 mph.The 2015 tacoma doesn't keep steady speed limit at 40 mph going down incline. The rpm fluctuates at 40 mph as if its trying to distinguish what speed limit the engine is driving at. The tacoma is stalling at 40 mph while making a shutter sound while driving down inclines and winding turns.

NHTSA ODI #11724425

85,599 miles · Apr 7, 2023
Vehicle Speed Control

The contact owns a 2015 Toyota Tacoma. The contact stated while her husband was depressing the brake pedal, the vehicle accelerated independently. The contact stated no warning light was illuminated. The driver was able to regain control of the vehicle and continued driving to the residence but experienced the failure for second…

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The contact owns a 2015 Toyota Tacoma. The contact stated while her husband was depressing the brake pedal, the vehicle accelerated independently. The contact stated no warning light was illuminated. The driver was able to regain control of the vehicle and continued driving to the residence but experienced the failure for second time. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the air filter, the intake box, the throttle body, and the fuel injectors to be replaced. The vehicle was repaired. The manufacturer had not been informed of the failure. The failure mileage was 85,599.

NHTSA ODI #11515941

Mileage unknown · Dec 12, 2022
EnginePower TrainVehicle Speed Control

Due to the failure of the secondary air pump system vehicle will experience a sudden loss of power and could cause a loss of control. Toyota is aware of the problem but will not issue a recall.

NHTSA ODI #11497114

Mileage unknown · Jan 17, 2022
Service BrakesUnknown Or OtherVehicle Speed ControlCrashInjury

I came to a complete stop right after a left turn into strip shopping parking lot. My automatic transmission in drive with my left foot on the brake. My truck suddenly took off on its own hitting another vehicle at high speed a few inches away to my right. From police report later it appeared 5 other vehicles were hit. Mine was …

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I came to a complete stop right after a left turn into strip shopping parking lot. My automatic transmission in drive with my left foot on the brake. My truck suddenly took off on its own hitting another vehicle at high speed a few inches away to my right. From police report later it appeared 5 other vehicles were hit. Mine was towed to a city lot and retrieved by my insurance company and totalled.I had fractured mid left clavicle and was put in ambulance to ER. No other injuries I’m aware of to any persons.It occurred a few days prior but in a parking lot with nothing in front of me to crash into so I had time to think to step on brake and move auto transmission to park or neutral. No other times did it occur to me. My husband also drove truck and coincidentally had 3 backup accidents in a row backing out of a parking space. First time that type of accident had happened to him.I told everyone what happened but I couldn’t see witnesses or exchange information because my pain was too severe. According to what I heard others saying or what was written I wasn’t believed. They tricked me once I got to ER and locked me on psych ward like I was suicidal but I never told anyone I was. I think they wanted to keep me in hospital longer for the money because they did nothing but an X-ray and I went the entire night with no pain medicine right after radiologist told me that clavicle fracture is the most painful kind of fracture.

NHTSA ODI #11447716

63,000 miles · Aug 5, 2020
EnginePower TrainVehicle Speed Control

ON THREE DIFFERENT OCCASIONS I WAS STATIONARY WITH THE GEAR SHIFT IN DRIVE AND MY FOOT FIRMLY ON THE BREAK,WHEN THE RPM'S SUDDENLY REVEL UP TO OVER 5000 RPM AND THE TRUCK TRYING TO LURCH FORWARD. I HAD TO RAM THE GEAR SHIFT INTO NEUTRAL TO GET THE RPM'S TO DROP DOWN. THE LAST TIME IT HAPPENED AT THE BANK PARKING LOT. I CAME TO A…

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ON THREE DIFFERENT OCCASIONS I WAS STATIONARY WITH THE GEAR SHIFT IN DRIVE AND MY FOOT FIRMLY ON THE BREAK,WHEN THE RPM'S SUDDENLY REVEL UP TO OVER 5000 RPM AND THE TRUCK TRYING TO LURCH FORWARD. I HAD TO RAM THE GEAR SHIFT INTO NEUTRAL TO GET THE RPM'S TO DROP DOWN. THE LAST TIME IT HAPPENED AT THE BANK PARKING LOT. I CAME TO A COMPLETE STOP TO LET A WOMAN CROSS IN FRONT OF ME TO HER CAR. ALL OF THE SUDDEN THE ENGINE REVS WAY UP WITH ME TRYING TO HOLD THE TRUCK BACK AS IT WAS LURCHING FORWARD. SHE THOUGHT I WAS TRYING TO RUN OVER HER. I DON'T KNOW WHO WAS MORE SCARED, HER OR ME. I JAMMED IT INTO NEUTRAL AND AFTER A FEW MORE SECONDS THE REVS DROPPED DOWN TO IDLE AGAIN. I'M TAKING IT TO MODESTO TOYOTA TOMORROW TO GET IT LOOKED AT ON AUGUST THE 6TH. THE TRUCK ONLY HAS 63000 MILES ON IT. THE OTHER TWO TIMES IT HAPPENED WERE IN MY DRIVEWAY AND AT MY STORAGE UNIT. BOTH TIMES I WAS STATIONARY AS WELL, TRUCK IN DRIVE, FOOT ON BREAK. VERY DANGEROUS!

NHTSA ODI #11343429

76,093 miles · Feb 29, 2020
Vehicle Speed Control

SUDDEN ACCELERATION ON FEB 25, 2020. I WAS PULLING INTO A PARKING SPOT, LOW SPEED (UNDER 10 MPH), RIGHT HAND TURN, VEHICLE SUDDENLY ACCELERATED. I PRESSED HARD ON THE BRAKE, LOCKING THE BRAKES UP AND SQUEALING TIRES. THE TRUCK LURCHED TO A STOP. NO DAMAGE, NO OTHER CARS NEAR WHERE I WAS PARKING. THIS WAS A NORMAL ROUTIN…

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SUDDEN ACCELERATION ON FEB 25, 2020. I WAS PULLING INTO A PARKING SPOT, LOW SPEED (UNDER 10 MPH), RIGHT HAND TURN, VEHICLE SUDDENLY ACCELERATED. I PRESSED HARD ON THE BRAKE, LOCKING THE BRAKES UP AND SQUEALING TIRES. THE TRUCK LURCHED TO A STOP. NO DAMAGE, NO OTHER CARS NEAR WHERE I WAS PARKING. THIS WAS A NORMAL ROUTINE STOP AT A LOCAL GAS STATION THAT MAKE SOME MORNINGS BEFORE WORK TO PURCHASE A FOUNTAIN DRINK. UNKNOWN CAUSE - ECU/SOFTWARE, GAS PEDAL SENSORS, ELECTRICAL NOISE ? YEAR, MAKE, MODEL: 2015 TOYOTA TACOMA TRUCK - PURCHASED NEW DEC 2014. VEHICLE HAS BEEN ROUTINELY MAINTAINED AND IN EXCELLENT CONDITION. NEW TIRES ON FEB 7, 2020 AT 75,329 MILES, SIMILAR SIZE AS ORIGINAL. MILEAGE: 76093 AT TIME OF INCIDENT FYI - I AM AN ENGINEER AT NASA - JOHNSON SPACE CENTER

NHTSA ODI #11312230

9,400 miles · Mar 10, 2016
Fuel/propulsion SystemService BrakesVehicle Speed ControlCrash

MY STEPSON WAS PULLING INTO THE DRIVEWAY, HE STOPPED, THEN THE TOYOTA TACOMA LUNGED FORWARD CRASHING INTO OUR GARAGE. I HAD NOTICED SINCE LEASING THE TRUCK IN JULY OF 2015, THAT ONCE IN A WHILE I WOULD COME TO A STOP AND IT FELT LIKE I JUST GOT REAR ENDED BUT NOBODY WAS BEHIND ME.

NHTSA ODI #10846031

9,000 miles · Jul 24, 2015
Service BrakesVehicle Speed ControlCrash

TL* THE CONTACT OWNS A 2015 TOYOTA TACOMA. WHILE DRIVING APPROXIMATELY 10 MPH, THE BRAKE PEDAL WAS DEPRESSED AND THE VEHICLE CONTINUED TO ACCELERATE. THE EMERGENCY BRAKE WAS ENGAGED HOWEVER, THE VEHICLE SLIGHTLY SCRAPED THE CONCRETE DRIVEWAY WALL. THERE WAS NO PERSONAL INJURY. THERE WAS MINOR DAMAGE TO THE FRONT BUMPER. THE VEHI…

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TL* THE CONTACT OWNS A 2015 TOYOTA TACOMA. WHILE DRIVING APPROXIMATELY 10 MPH, THE BRAKE PEDAL WAS DEPRESSED AND THE VEHICLE CONTINUED TO ACCELERATE. THE EMERGENCY BRAKE WAS ENGAGED HOWEVER, THE VEHICLE SLIGHTLY SCRAPED THE CONCRETE DRIVEWAY WALL. THERE WAS NO PERSONAL INJURY. THERE WAS MINOR DAMAGE TO THE FRONT BUMPER. THE VEHICLE WAS TAKEN TO THE DEALER, WHO REPLACED BOTH THE BRAKE ACTUATOR AND MASTER CYLINDER. THE BUMPER WAS NOT REPLACED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 9,000.

NHTSA ODI #10743381

100 miles · Jul 21, 2015
Vehicle Speed Control

MY 2015 TACOMA HAS AN INDICATION THAT CRUISE CONTROL (CC) IS TURNED ON, BUT NOT IF CC IS ENGAGED OR DISENGAGED. I WAS DRIVING IN THE RIGHT LANE ON A MULTIPLE LANE FREEWAY WITH CC ON AND ENGAGED. WHEN I APPROACHED SLOWER MOVING TRAFFIC IN THE LANE I WAS TRAVELING, I MOVED TO THE LEFT LANE TO PASS. I USED THE ACCELERATOR IN ORDER …

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MY 2015 TACOMA HAS AN INDICATION THAT CRUISE CONTROL (CC) IS TURNED ON, BUT NOT IF CC IS ENGAGED OR DISENGAGED. I WAS DRIVING IN THE RIGHT LANE ON A MULTIPLE LANE FREEWAY WITH CC ON AND ENGAGED. WHEN I APPROACHED SLOWER MOVING TRAFFIC IN THE LANE I WAS TRAVELING, I MOVED TO THE LEFT LANE TO PASS. I USED THE ACCELERATOR IN ORDER TO SPEED UP AND MINIMIZE MY IMPACT ON THE FASTER MOVING TRAFFIC IN THE LANE. I DID THIS WITHOUT DISENGAGING CC. FEELING SOCIAL PRESSURE TO MOVE RIGHT AS TRAFFIC WAS BACKING UP EVEN AT MY ACCELERATED SPEED, I RELEASED THE ACCELERATOR AND MOVED RIGHT. AS MY VEHICLE SLOWED AND I APPROACHED THE VEHICLE NOW IN FRONT OF ME, I DID NOT RECALL CC WAS ENGAGED. SINCE I WAS EXPECTING MY VEHICLE TO CONTINUE DECELERATING, I WAS CAUGHT OFF GUARD WHEN MY CC ENGAGED AND QUICKLY ACCELERATE TO RESUME THE SET SPEED AFTER MY VEHICLE'S SPEED DROPPED 1-2 MPH LESS THAN THE SPEED MY CC WAS ENGAGED TO MAINTAIN. I WAS ABLE TO QUICKLY HIT THE BRAKES AVOID A COLLISION, BUT AM CONCERNED THIS FAILURE TO INDICATE THE STATUS OF MY CC MAY CAUSE A FUTURE COLLISION. CODE OF REGULATIONS TITLE 49 SECTION 571.101 S5.2.8 STATES "EACH CONTROL FOR AN AUTOMATIC VEHICLE SPEED SYSTEM (CRUISE CONTROL) AND EACH CONTROL FOR HEATING AND AIR CONDITIONING SYSTEMS MUST HAVE IDENTIFICATION PROVIDED FOR EACH FUNCTION OF EACH SUCH SYSTEM." I DO NOT BELIEVE MY VEHICLE SATISFIES THIS REQUIREMENT AS THEIR IS NO IDENTIFICATION INDICATING THE TWO SETTINGS AVAILABLE WHEN CC IS ON: ENGAGED AND DISENGAGED. I'VE CONTACTED TOYOTA AND THE DEALERSHIP WHERE I PURCHASED THE TRUCK. THEY OFFERED NO SOLUTION AND STATED THE SPEEDOMETER HOLDING A CONSTANT SPEED WAS THE INDICATION CC WAS ENGAGED. I QUESTION IF THIS IS A VALID ARGUMENT BECAUSE WHEN I PUT MY FOOT ON THE ACCELERATOR WHEN CC IS ENGAGED, MY SPEED CHANGES. THANK YOU FOR TAKING MY COMPLAINT. *TR

NHTSA ODI #10735633

Official recalls

4

17V425000 · Equipment; Structure:body:hood:hinge And Attachments

Jul 3, 2017

Southeast Toyota Distributors, LLC (SET) is recalling certain 2011-2016 Toyota Tacoma and 4Runner vehicles equipped with accessory hood scoops installed by SET or SET dealers. The adhesive attaching the hood scoop may weaken, allowing the hood scoop to detach from the vehicle.

Consequence & remedy

Consequence: If the hood scoop detaches, it may become a road hazard, increasing the risk of a crash.

Remedy: SET will notify owners, and dealers will mechanically fasten the scoop to the hood, free of charge. The recall began on September 1, 2017. Owners may contact SET customer service at 1-954-429-2000. SET's number for this recall is SET17B.

Additional source detail variants (2)

Equipment

Southeast Toyota Distributors, LLC (SET) is recalling certain 2011-2016 Toyota Tacoma and 4Runner vehicles equipped with accessory hood scoops installed by SET or SET dealers. The adhesive attaching the hood scoop may weaken, allowing the hood scoop to detach from the vehicle.

Consequence: If the hood scoop detaches, it may become a road hazard, increasing the risk of a crash.

Remedy: SET will notify owners, and dealers will mechanically fasten the scoop to the hood, free of charge. The recall began on September 1, 2017. Owners may contact SET customer service at 1-954-429-2000. SET's number for this recall is SET17B.

Structure:body:hood:hinge And Attachments

Southeast Toyota Distributors, LLC (SET) is recalling certain 2011-2016 Toyota Tacoma and 4Runner vehicles equipped with accessory hood scoops installed by SET or SET dealers. The adhesive attaching the hood scoop may weaken, allowing the hood scoop to detach from the vehicle.

Consequence: If the hood scoop detaches, it may become a road hazard, increasing the risk of a crash.

Remedy: SET will notify owners, and dealers will mechanically fasten the scoop to the hood, free of charge. The recall began on September 1, 2017. Owners may contact SET customer service at 1-954-429-2000. SET's number for this recall is SET17B.

15V099000 · Tires; Wheels

Feb 23, 2015

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2015 Tacoma pickup trucks manufactured August 7, 2014, to December 22, 2014. The affected vehicles may have had their tires and wheels changed to TRD PRO accessory tires and wheels, causing the inflation information on the tire placard to be incorrect which may result in the tire being improperly inflated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 110, "Tire Selection and Rims and Motor Home/Recreation Vehicle Trailer Load Carrying Capacity Information for Motor Vehicles with a GVWR of 4,536 kilograms (10,000 pounds) or less."

Consequence & remedy

Consequence: Improperly inflated tires may increase the risk of a vehicle crash.

Remedy: Toyota will notify owners, and dealers will send a revised tire placard with correct tire size and inflation information to owners, free of charge. The recall began March 13, 2015. Owners may contact Toyota customer service at 1-800-331-4331.

Additional source detail variants (2)

Wheels

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2015 Tacoma pickup trucks manufactured August 7, 2014, to December 22, 2014. The affected vehicles may have had their tires and wheels changed to TRD PRO accessory tires and wheels, causing the inflation information on the tire placard to be incorrect which may result in the tire being improperly inflated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 110, "Tire Selection and Rims and Motor Home/Recreation Vehicle Trailer Load Carrying Capacity Information for Motor Vehicles with a GVWR of 4,536 kilograms (10,000 pounds) or less."

Consequence: Improperly inflated tires may increase the risk of a vehicle crash.

Remedy: Toyota will notify owners, and dealers will send a revised tire placard with correct tire size and inflation information to owners, free of charge. The recall began March 13, 2015. Owners may contact Toyota customer service at 1-800-331-4331.

Tires

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2015 Tacoma pickup trucks manufactured August 7, 2014, to December 22, 2014. The affected vehicles may have had their tires and wheels changed to TRD PRO accessory tires and wheels, causing the inflation information on the tire placard to be incorrect which may result in the tire being improperly inflated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 110, "Tire Selection and Rims and Motor Home/Recreation Vehicle Trailer Load Carrying Capacity Information for Motor Vehicles with a GVWR of 4,536 kilograms (10,000 pounds) or less."

Consequence: Improperly inflated tires may increase the risk of a vehicle crash.

Remedy: Toyota will notify owners, and dealers will send a revised tire placard with correct tire size and inflation information to owners, free of charge. The recall began March 13, 2015. Owners may contact Toyota customer service at 1-800-331-4331.

14V828000 · Equipment

Dec 30, 2014

Southeast Toyota Distributors, LLC (SET) is recalling certain model year 2014-2015 Toyota 4Runner, Tacoma, FJ Cruiser, Land Cruiser, RAV4, Scion FRS, and XB vehicles. The affected vehicles may have accessories installed by SET, such as running boards or other items, that were incorrectly installed. The accessory attaching fasteners were not tightened with the proper torque, possibly causing the accessory to detach from the vehicle.

Consequence & remedy

Consequence: Accessories that detach from a vehicle may result in a vehicle crash and/or personal injury.

Remedy: SET will notify owners, and dealers will inspect and tighten the affected bolts, free of charge. The recall began February 23, 2015. Owners may contact SET customer service at 1-866-405-4226. SET's number for this recall is SET-14B.

14V663000 · Equipment:other:labels

Oct 22, 2014

Gulf States Toyota, Inc. (Gulf States) is recalling certain model year 2015 Toyota Tacoma vehicles manufactured September 2, 2014, to October 15, 2014. The affected vehicles may contain an incorrect Load Carrying Capacity Modification Label. As a result, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard No. 110, "Tire Selection and Rims for Passenger Cars."

Consequence & remedy

Consequence: An incorrect label may result in the vehicle being overloaded, increasing the risk of a crash.

Remedy: Gulf States has notified owners, and dealers will install an accurate label, free of charge. The recall began December 1, 2014. Owners may contact Gulf States customer service at 1-800-444-1074.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

1

EA19001 · Electrical Overstress

Opened Apr 19, 2019 · Closed Sep 19, 2024

Status: closed (inferred from source dates) · Air Bags: Air Bag/restraint Control Module

The Office of Defects Investigation (ODI) opened this investigation to determine if the failure of airbags to deploy during severe crashes, in certain vehicles, was the result of a safety related defect.  During the investigation a complex failure was studied that can result in non-deployment of subject vehicle air bags and other restraint system devices in severe crash events. The subject vehicles may be equipped with an airbag control unit (ACU) for the supplemental restraint system (SRS) Electronic Control Unit (ECU) manufactured by ZF-TRW.  The ECU receives signals from crash sensors mounted in the vehicle and deploys the vehicle air bags and seat belt pretensioners in accordance with manufacturer design specifications.  The ECU in the subject vehicles contains a model DS84 application-specific integrated circuit (ASIC) which controls the communication of the crash sensor signal, firing commands (i.e., when to deploy the airbag(s) and/or pretensioners), and fault information (e.g., diagnostic trouble codes). In September 2016, FCA announced recall 16V-668 for certain model year (MY) 2010 to 2014 Chrysler, Dodge and Jeep products manufactured with the subject ZF-TRW ACU.  In this recall, FCA discussed an EOS condition that resulted in a failure of the subject DS84 ASIC, which caused air bag non-deployment.  FCA noted that the defect condition had only been observed in vehicles equipped with sensor harnessing routed across the front of the vehicle.  Other FCA vehicles that also used the subject ACU, but were not equipped with cross-car harnessing, had not experienced EOS failures, despite similar time in service. During the course of this investigation, ODI sent two separate Information Request (IR) letters to six vehicle manufactures (including FCA, Hyundai, Honda, Kia, Mitsubishi, and Toyota) and one IR letter to ZF-TRW.  These IR letters resulted in ODI receiving comprehensive data from these manufacturers and suppliers. Studies of this data found that the DS84 ASIC does not have sufficient protection against negative electrical transients or electrical overstress (“EOS”) that can be generated in certain severe crashes.  An electrical transient occurs when the electrical power supplied to a circuit changes momentarily over a short duration of time.   In these severe crash cases, the crash sensors and other powered wiring can be damaged and short circuited so as to create a negative electrical transient of sufficient intensity and duration (that are outside the vehicle manufacturer's specification) to damage the ASIC before the restraint device deployment signal is received by the SRS ECU.  This damaged signal can lead to incomplete or nondeployment of the air bags and/or pretensioners.  Airbag non-deployment and/or lack of pretensioner operation can increase the risk or severity of injury in a crash.A total of 8 fatalities and 14 injuries were associated with known EOS events. The common element in all investigated manufacturers vehicles is the SRS ECU containing a DS84 ASIC manufactured by ZF-TRW.  The risk associated with the ASIC is equally shared among all OEMS involved in the investigation.  The actual real-world risk can be mitigated by other factors which were assessed by ODI during this investigation. The first mitigating factor involves protections built into the ACU design which protect the DS84 ASIC from damage.  There are multiple strategies and levels of protection employed by different OEMs that provide effective EOS mitigation.  The two most common strategies at the ACU level are circuit protection diodes on the remote senor signal lines, and current limiting resistors that protect critical components. The second mitigating factor is found at the vehicle level and involves the location and routing of the wires leading from the crash sensors to the SRS ECU.  If the wires are well protected in a crash and are not routed with other power wires carrying large currents, the risk for an EOS event is significantly reduced or eliminated. These design specific factors combine to produce a spectrum of risk for the vehicles equipped with ACUs using the DS84 ASIC.  Given the many of years of field exposure, it is possible to divide the subject population into two groups; vehicles which have experienced EOS events, and vehicles which have not experienced EOS field events. Four of the six OEMs involved in this investigation have experienced EOS field events on at least one of their models equipped with a DS84 ASIC.  All vehicle models (including the Toyota models identified in the Failure Report Summary of the opening resume for this investigation) with field events have been recalled.  In an abundance of caution, ODI kept this investigation open five years to monitor field performance and did not identify any field events on vehicles not included in existing safety recalls. Given the spectrum of risk identified in this investigation and that all vehicles with a demonstrated unreasonable risk have been recalled, ODI is closing this investigation. ODI is closing this investigation with the following manufacturer safety recalls: 16V-668, 18E-043, 18V-137, 18V-363, and 20V-024.  With the recall actions taken by the subject vehicle and equipment manufacturers, this investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exists on other model or model year vehicles outside of the recall scopes. The agency reserves the right to take further action if warranted by the circumstances.