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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.

About this comparison →

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

What owners actually said

101 reports
17,000 miles · Jun 5, 2016
Electrical SystemEngineFuel/propulsion System

MY TRUCK WAS RECENTLY DAMAGED FROM RODENTS,THEY BUILT A NEST BY ENGINE AND CHEWED WIRES. AFTER FURTHER RESEARCH I FOUND THAT AUTO MANUFACTURERS IN ORDER TO GO GREEN ARE USING SOY BASED PRODUCTS ON WIRES INSTEAD OF PETROLEUM. THEY ARE USING SUGAR IN THERE PLASTICS. RICE HUSKS IN THERE INTERIORS. ALL THIS STUFF ATTRACTS RODENTS. T…

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MY TRUCK WAS RECENTLY DAMAGED FROM RODENTS,THEY BUILT A NEST BY ENGINE AND CHEWED WIRES. AFTER FURTHER RESEARCH I FOUND THAT AUTO MANUFACTURERS IN ORDER TO GO GREEN ARE USING SOY BASED PRODUCTS ON WIRES INSTEAD OF PETROLEUM. THEY ARE USING SUGAR IN THERE PLASTICS. RICE HUSKS IN THERE INTERIORS. ALL THIS STUFF ATTRACTS RODENTS. THIS IS UNACCEPTABLE! MY DEALERSHIP SAID THEY ARE SEEING AT LEAST 2 RODENT DAMAGED VEHICLES A WEEK. MY TRUCK IS DRIVEN DAILY AND SITS NO LONGER THAN 8 HOURS. THE TOTAL DAMAGE ON A BRAND NEW TRUCK WITH EXTENDED WARRANTY WAS 2700 OUT OF POCKET, THIS DAMAGE WAS NO COVERED BY WARRANTY.

NHTSA ODI #10872591

31,000 miles · May 10, 2016
Service BrakesCrashInjury

TOOK TRUCK IN FOR 25,000 MAINTENANCE ,DEALERSHIP SAID BRAKES ARE 50% REMAINING. AT 30,000 MILES BREAKS ARE METAL TO METAL,DEALERSHIP REFUSED TO TOW OR DO REPAIRS AND NOW ARE STATING I DECLINED TOWING AND REPAIRS.VEHICLES HAS BEEN IN A WRECK, I BELIEVE THE RESULT OF THE BRAKES.CALLED DEALERSHIP 6 TIMES TRYING TO GET REPAIRS DONE …

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TOOK TRUCK IN FOR 25,000 MAINTENANCE ,DEALERSHIP SAID BRAKES ARE 50% REMAINING. AT 30,000 MILES BREAKS ARE METAL TO METAL,DEALERSHIP REFUSED TO TOW OR DO REPAIRS AND NOW ARE STATING I DECLINED TOWING AND REPAIRS.VEHICLES HAS BEEN IN A WRECK, I BELIEVE THE RESULT OF THE BRAKES.CALLED DEALERSHIP 6 TIMES TRYING TO GET REPAIRS DONE CORRECTLY BUT NEVER RECEIVED A CALL BACK.I BELIEVE THEY COMMITTED FRAUD IN MAINTENANCE AND NEGLIGENCE AND TELLING ME THE VEHICLE WAS SAFE TO DRIVE. VEHICLE IS STILL UNDER FACTORY WARRANTY.

NHTSA ODI #10864282

7,800 miles · Apr 27, 2016
EngineUnknown Or Other

SECONDARY AIR INJECTION SYSTEM MALFUNCTIONED AT UNDER 8K MILES ON A 2015 BRAND NEW TRUCK. DID SOME RESEARCH AND THIS PART SEEMS TO FAIL PRETTY EARLY AND JUST OUTSIDE THE 3YEAR/36MOS COVERAGE AND BE QUITE COSTLY TO FIX OR REPLACE. TOYOTA CURRENTLY IS NOT DOING ANYTHING ABOUT IT ON TACOMAS LIKE THEY DID WITH THE TUNDRAS BUT THEY…

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SECONDARY AIR INJECTION SYSTEM MALFUNCTIONED AT UNDER 8K MILES ON A 2015 BRAND NEW TRUCK. DID SOME RESEARCH AND THIS PART SEEMS TO FAIL PRETTY EARLY AND JUST OUTSIDE THE 3YEAR/36MOS COVERAGE AND BE QUITE COSTLY TO FIX OR REPLACE. TOYOTA CURRENTLY IS NOT DOING ANYTHING ABOUT IT ON TACOMAS LIKE THEY DID WITH THE TUNDRAS BUT THEY ARE AWARE THAT THIS PART IS PRONE TO FAILURE.

NHTSA ODI #10861646

1,000 miles · Apr 17, 2016
Structure

THE FIRST TIME I HEARD THE WHISTLING SOUND I THOUGHT IT WAS COMING FROM THE PASSENGER SIDE MIRROR WHILE I WAS DRIVING OVER 55 MPH ON THE HIGHWAY. THEN I HEARD SAME WHISTLING SOUND COMING FROM THE DRIVERS SIDE MIRROR THE NEXT TIME I WAS ON HIGHWAY GOING OVER 55 MPH. THEN IT CAME FROM BOTH SIDES OF PICKUP AND SOUNDED LIKE NOISE …

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THE FIRST TIME I HEARD THE WHISTLING SOUND I THOUGHT IT WAS COMING FROM THE PASSENGER SIDE MIRROR WHILE I WAS DRIVING OVER 55 MPH ON THE HIGHWAY. THEN I HEARD SAME WHISTLING SOUND COMING FROM THE DRIVERS SIDE MIRROR THE NEXT TIME I WAS ON HIGHWAY GOING OVER 55 MPH. THEN IT CAME FROM BOTH SIDES OF PICKUP AND SOUNDED LIKE NOISE COMING FROM BOTH OUTSIDE MIRRORS ON FRONT OF MY TRUCK. I RESEARCHED ONLINE AND FOUND OTHERS WHO REPORTED SIMILAR NOISE WHILE DRIVING PICKUP AT HIGHWAY SPEEDS. I CALLED THE DEALER WHERE I BOUGHT MY TOYOTA TACOMA IN AUGUST OF 2015 AND THE SERVICE CENTER REPRESENTATIVE, ALAN ADVISED ME THAT TO DATE THERE WAS NO RECALL BUT THEY WERE AWARE OF THE PROBLEM AND WOULD TRY TO DO SOMETHING TO ALLEVIATE THE NOISE FROM FRONT AREA OF THE PICKUP.

NHTSA ODI #10859929

3,200 miles · Apr 14, 2016
Unknown Or Other

WHILE DRIVING AT 65 MPH I HEARD A LOUD SCREECHING SOUND WHICH STARTLED ME CAUSING ME TO ALMOST LOSE CONTROL. A CROSS WIND ALONG WITH BAD DOOR SEALS CAUSED THIS PROBLEM. THE INTERNET DOCUMENTS THIS PROBLEM WELL IF YOU SEARCH 2015 TACOMA WIND NOISE. PLEASE SEE THIS VIDEO HTTPS://WWW.YOUTUBE.COM/WATCH?V=GBT7DASTHPM THE SOUND IS…

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WHILE DRIVING AT 65 MPH I HEARD A LOUD SCREECHING SOUND WHICH STARTLED ME CAUSING ME TO ALMOST LOSE CONTROL. A CROSS WIND ALONG WITH BAD DOOR SEALS CAUSED THIS PROBLEM. THE INTERNET DOCUMENTS THIS PROBLEM WELL IF YOU SEARCH 2015 TACOMA WIND NOISE. PLEASE SEE THIS VIDEO HTTPS://WWW.YOUTUBE.COM/WATCH?V=GBT7DASTHPM THE SOUND IS VERY LOUD.

NHTSA ODI #10855456

1,800 miles · Apr 13, 2016
Seats

I PURCHASED A NEW TOYOTA TACOMA IN JANUARY 2015. ON MARCH 28TH 2015 MY SON AND I EACH LEFT OUR UNPLUGGED PHONE CHARGING CABLES LAYING ACROSS THE FRONT OF OUR FACTORY UPGRADED ALL WEATHER SEATS. THE SUN WAS DIRECTLY SHINING ON THE FRONT SEATS FROM 1 TO 5 P.M. BOTH SEATS MELTED AROUND WHERE THE UNPLUGGED CORDS LAID. I HAVE WRITTE…

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I PURCHASED A NEW TOYOTA TACOMA IN JANUARY 2015. ON MARCH 28TH 2015 MY SON AND I EACH LEFT OUR UNPLUGGED PHONE CHARGING CABLES LAYING ACROSS THE FRONT OF OUR FACTORY UPGRADED ALL WEATHER SEATS. THE SUN WAS DIRECTLY SHINING ON THE FRONT SEATS FROM 1 TO 5 P.M. BOTH SEATS MELTED AROUND WHERE THE UNPLUGGED CORDS LAID. I HAVE WRITTEN SEVERAL LETTERS TO TOYOTA AND THE DISTRIBUTOR ASKING FOR A SIMPLE REPLACEMENT OF THE ORIGINAL SEATS THAT WERE ON THE ORIGINAL INVOICE AT THE TIME OF PURCHASE. MY CONCERNS INCLUDE WHY DID THESE THREE MONTH OLD SEATS FAIL? ARE THESE SEATS SAFE AND HAVE THEY PASSED ALL THE NEW CAR SAFETY TEST? WHO MANUFACTURED THESE SEATS? WHO IS RESPONSIBLE TO INSPECT IF THE MATERIAL IS FIRE RETARDANT? WHEN I LEAVE A PLASTIC GROCERY BAG ON THE SEAT FOR A 5 MINUTE RIDE HOME THE BAGS MELT INTO THE SEATS TO THE POINT THAT WHEN I PEEL THEM OFF THE INK WRITING FROM THE BAG IS LEFT ON THE SEAT. I AM VERY CONCERNED THAT IF IN AN ACCIDENT THESE SEATS CAN BE HAZARDOUS TO THE OCCUPANTS. THE ARBITRATION LETTER FROM TOYOTA NATIONAL DISPUTE SETTLEMENT INDICATED THAT THEY DID NOT HAVE JURISDICTION ON THIS NONCONFORMIST ITEM. THIS IS THE ONLY WRITTEN COMMUNICATION I HAVE FORM THE THREE LETTERS I HAVE WRITTEN TO TOYOTA. TOYOTA REPRESENTATIVES VERBALLY ASSURE ME THAT THE SEATS HAVE MET ALL FEDERAL AND DOT REQUIREMENTS BUT REFUSE TO PUT THIS INFORMATION IN WRITING. THEY ALSO REFUSE TO GIVE ME ANY INFORMATION ON WHO MADE THESE SEATS AND WHAT IS THE MATERIAL MADE OUT OF. THIS MAKES IT NEARLY IMPOSSIBLE FOR ME TO GATHER SAFETY INFORMATION REGARDING THESE SEATS AND RATHER OR NOT THEY MEET ALL APPLICABLE DOT STANDARDS. THANK YOU VERY MUCH FOR YOUR CONSIDERATION OF MY CONCERNS. *TR

NHTSA ODI #10855350

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

6,500 miles · Feb 26, 2016
StructureVisibility/wiper

TL* THE CONTACT OWNS A 2015 TOYOTA TACOMA. WHEN THE DRIVER SIDE WINDOW WAS WET, IT MADE A LOUD SQUEALING NOISE AND EXTREME MOISTURE ACCUMULATED IN THE DOOR WELL. THE DEALER DIAGNOSED AND REPAIRED THE VEHICLE TWICE, BUT THE FAILURE RECURRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 6,500. ......UPDATED 04/01…

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TL* THE CONTACT OWNS A 2015 TOYOTA TACOMA. WHEN THE DRIVER SIDE WINDOW WAS WET, IT MADE A LOUD SQUEALING NOISE AND EXTREME MOISTURE ACCUMULATED IN THE DOOR WELL. THE DEALER DIAGNOSED AND REPAIRED THE VEHICLE TWICE, BUT THE FAILURE RECURRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 6,500. ......UPDATED 04/01/16 *BF CONSUMER STATED PROBLEM IS UNDER THE DRIVER SIDE SEAT CUT IN CARPET FOR SOME KIND OF HOSE COMING THRU FLOOR BOARD, FOGGING WINDOWS AND ICE COLD AIR COMING THUR FLOOR BOARD. UPDATED 6/7/18*JB

NHTSA ODI #10838721

Mileage unknown · Feb 8, 2016
SeatsInjury

MY TRUCKS HEADRESTS ARE TILTED SO FAR FORWARD THAT IT CAUSES SIGNIFICANT PAIN IN MY NECK. THEY CAME THIS WAY FROM THE FACTORY. I HAVE TO TURN THE HEADREST AROUND TO RELIEVE THE PAIN, WHICH THEN EXPOSES ME TO AN EVEN HIGHER RISK OF WHIPLASH. YOU IDIOTS AT NHTSA WHO CHANGED THE REGULATIONS SO THAT CAR MANUFACTURERS HAD TO BUILD TH…

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MY TRUCKS HEADRESTS ARE TILTED SO FAR FORWARD THAT IT CAUSES SIGNIFICANT PAIN IN MY NECK. THEY CAME THIS WAY FROM THE FACTORY. I HAVE TO TURN THE HEADREST AROUND TO RELIEVE THE PAIN, WHICH THEN EXPOSES ME TO AN EVEN HIGHER RISK OF WHIPLASH. YOU IDIOTS AT NHTSA WHO CHANGED THE REGULATIONS SO THAT CAR MANUFACTURERS HAD TO BUILD THEM THIS WAY NEED TO REPEAL THE LAW.

NHTSA ODI #10824983

4,434 miles · Feb 3, 2016
Engine

I WAS DRIVING STRAIGHT AWAY GOING UP A SLIGHT HILL ON THE HWY EXCELLING AND PRESSING THE GAS PEDAL WHEN THE POWER SUDDENLY DROPPED AND WENT DOWN TO 20 MPH WHILE I PRESSED THE GAS PEDAL EVEN MORE THE ENGINE SOUNDED LIKE IT WAS REVVING BUT THE SPEED STAYED AT 20 MPH OR LESS.- THE CHECK ENGINE LIGHT, VSC & TRAC LIGHTS ALL CAME ON. …

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I WAS DRIVING STRAIGHT AWAY GOING UP A SLIGHT HILL ON THE HWY EXCELLING AND PRESSING THE GAS PEDAL WHEN THE POWER SUDDENLY DROPPED AND WENT DOWN TO 20 MPH WHILE I PRESSED THE GAS PEDAL EVEN MORE THE ENGINE SOUNDED LIKE IT WAS REVVING BUT THE SPEED STAYED AT 20 MPH OR LESS.- THE CHECK ENGINE LIGHT, VSC & TRAC LIGHTS ALL CAME ON. I IMMEDIATELY PULLED OVER AND DECIDED TO TURN AROUND AND NOT CONTINUE UP THE HILL. WHILE DRIVING ON THE STRAIGHT AWAY (STILL ON THE HWY) THE VEHICLE'S SPEED IMPROVED A LITTLE BUT ONLY IN SPURTS- GOING UPWARDS TO 40 MPH THEN FALLING AGAIN TO 20 MPH AT LEAST 3 TIMES IN THE 20 MINUTE DRIVE HOME. THE VEHICLE SOUNDED AND FELT LIKE IT WAS STRAINING FOR POWER. ALL OF THE FLUIDS, OILS ETC.. WAS FILLED AND IN GOOD STANDINGS- THIS VEHICLE IS ONLY 6 MONTHS OLD AND HAS 4434 MILES ON IT. I TOOK THE VEHICLE TO THE TOYOTA DEALER THE VERY NEXT DAY AND THEY FOUND THAT THIS WAS A MANUFACTURING PROBLEM. THE CODES P2445 AND P2441 WAS FOUND FAULTY AND WAS REPLACED- IN THE REPORT IT WAS STATED THAT THE CAR IS DOWN, CONSIDERED UNSAFE TO DRIVE BECAUSE THE VEHICLE MAY GO INTO LIMP MODE FOR THIS CONDITION WHILE DRIVING. I AM SUBMITTING A PORTION OF THE REPORT WITH MY PERSONAL INFORMATION COVERED.

NHTSA ODI #10824105

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.