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2016 Toyota Tacoma

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2016 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

189 reports with mileage · 134 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.

  • Power Train. Review the 136 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 47 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 36 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

4 crash reports4 fire reports1 injury reports

What owners actually said

323 reports
17,300 miles · Jul 13, 2017
Power Train

I TOOK MY TACOMA WITH 15619 MILES ON THE ODOMETER IN FOR THE LEAKING DIFFERENTIAL CHECK ON MAY 2, 2017 AT A TOYOTA DEALER. THEY PERFORMED THE TOYOTA SPECIFIED RECALL BY CHECKING FOR LEAKS AND APPARENTLY FOUND NONE AND RE TIGHTENED THE FASTENERS. ON JUNE 27 I WAS CHECKING THE TACOMA PRIOR TO OUR LEAVING ON VACATION AND NOTICED SE…

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I TOOK MY TACOMA WITH 15619 MILES ON THE ODOMETER IN FOR THE LEAKING DIFFERENTIAL CHECK ON MAY 2, 2017 AT A TOYOTA DEALER. THEY PERFORMED THE TOYOTA SPECIFIED RECALL BY CHECKING FOR LEAKS AND APPARENTLY FOUND NONE AND RE TIGHTENED THE FASTENERS. ON JUNE 27 I WAS CHECKING THE TACOMA PRIOR TO OUR LEAVING ON VACATION AND NOTICED SEEPAGE ON THE REAR DIFFERENTIAL IN 3 LOCATIONS. I EMAILED TOYOTA WITH MY CONCERN. I INFORMED THEM I WOULD BE TAKING MY TACOMA TO THE DEALER ON JUNE 28, 2017 TO HAVE IT LOOKED AT. I TOOK THE TACOMA ON JUNE 28, 2017 TO 2NDTOYOTA DEALER. I INFORMED THE SERVICE ADVISOR OF MY CONCERN WITH THE DIFFERENTIAL. THE MASTER TECH LOOKED AT IT. I FOLLOWED UP WITH TOYOTA CORPORATE BY PHONE INFORMED THEM OF MY CONCERNS AND WAS ADVISED TO SPEAK WITH THE SERVICE MGR. AND I DID. AFTER THE TECH HAD A CHANCE TO LOOK AT THE TACOMA I WAS ADVISED THAT I WOULD NEED TO HAVE THE REAR DIFFERENTIAL REPLACED. THE SERVICE MGR. TOLD ME THAT THEY WOULD ORDER THE PARTS TO REPAIR MY TACOMA AND I COULD HAVE USE OF A TRUCK ON LOAN FROM THE DEALERSHIP UNTIL MY TACOMA COULD BE REPAIRED. I RETURNED FROM VACATION MY TRUCK WAS NOT REPAIRED WAS TOLD TOYOTA WAS HAVING SOME TYPE OF ISSUE BECAUSE 1ST DEALER HAD ALL READY PERFORMED THE RECALL. HOWEVER, THE TACOMA BEGIN LEAKING AND THE DIFFERENTIAL WAS MAKING A LOUD NOISE AFTER THE RECALL WAS PERFORMED INITIALLY. I AM CONFUSED AS IT STILL SHOULD BE A WARRANTY COVERED ISSUE EVEN IF ANOTHER DEALER HAD ALL READY DID A RECALL. THE SERVICE ADVISOR AGREED AND THEY ARE STILL TRYING TO GET THE TRUCK REPAIRED. IT IS MY CONTENTION THAT THE 1ST DEALER DID THE RECALL CORRECTLY AND THE DIFFERENTIAL FAILED BECAUSE OF SUBSTANDARD PARTS OR DESIGN AFTER THE FIRST RECALL WAS DONE. MY CONCERN IS THAT MY TACOMA IS POTENTIALLY A RISK OF CRASH AS NOTED IN THE OFFICIAL TOYOTA RECALL. MY VEHICLE HAS BEEN AT THE DEALER SINCE JUNE 28TH 2017 OR 15 DAYS AND COUNTING.

NHTSA ODI #11005157

10,000 miles · Jul 13, 2017
Power Train

THE REAR DIFFERENTIAL IS LEAKING LUBRICANT. VISIBLE SIGN OF THE LEAK ARE ON THE FRONT (DRIVESHAFT) SIDE OF THE DIFFERENTIAL HOUSING.

NHTSA ODI #11005134

Mileage unknown · Jul 12, 2017
Power Train

TL* THE CONTACT OWNS A 2016 TOYOTA TACOMA. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V285000 (POWER TRAIN). THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE VEHICLE WAS TAKEN TO LAKELAND TOYOTA (2925 MALL HILL D…

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TL* THE CONTACT OWNS A 2016 TOYOTA TACOMA. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V285000 (POWER TRAIN). THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE VEHICLE WAS TAKEN TO LAKELAND TOYOTA (2925 MALL HILL DR, LAKELAND, FL 33810) WHO STATED THAT PARTS WERE NOT AVAILABLE AND PROVIDED A LOANER VEHICLE. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND A SUPERVISOR STATED THAT THE CONTACT DID NOT NEED TO CALL HIM AND LEAVE MESSAGES. THE CONTACT WAS ADVISED TO SPEAK WITH THE DEALER INSTEAD. THE CONTACT HAD NOT EXPERIENCED A FAILURE. THE VIN WAS UNAVAILABLE.

NHTSA ODI #11004942

14,338 miles · Jul 12, 2017
Power Train

TL* THE CONTACT OWNS A 2016 TOYOTA TACOMA. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V285000 (POWER TRAIN); HOWEVER, THE PART FOR THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT STATED THAT THE VEHICLE WAS LEAK…

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TL* THE CONTACT OWNS A 2016 TOYOTA TACOMA. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V285000 (POWER TRAIN); HOWEVER, THE PART FOR THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT STATED THAT THE VEHICLE WAS LEAKING OIL. THE CONTACT TOOK THE VEHICLE TO THE DEALER (DUBLIN TOYOTA) WHO HAS HAD THE VEHICLE SINCE JUNE 24, 2017. THE CONTACT WAS INFORMED THAT THERE WAS NO REMEDY OR ESTIMATED TIME FRAME FOR A REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND OPENED CASE NUMBER: 1706300586. THE APPROXIMATE FAILURE MILEAGE WAS 14,338. PARTS DISTRIBUTION DISCONNECT.

NHTSA ODI #11004913

Mileage unknown · Jul 11, 2017
Power Train

TL* THE CONTACT OWNS A 2016 TOYOTA TACOMA. THE CONTACT STATED THAT NHTSA CAMPAIGN NUMBER: 17V285000 (POWER TRAIN) EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE REPAIR. THE DEALER HAD POSSESSION OF THE VEHICLE FOR THREE WEEKS. THE CONTACT OBSERVED THE RECALL NOTIFICATION IN JUNE OF 2017, BUT DID NOT RECEIVE THE RECALL LETTER UNTI…

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TL* THE CONTACT OWNS A 2016 TOYOTA TACOMA. THE CONTACT STATED THAT NHTSA CAMPAIGN NUMBER: 17V285000 (POWER TRAIN) EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE REPAIR. THE DEALER HAD POSSESSION OF THE VEHICLE FOR THREE WEEKS. THE CONTACT OBSERVED THE RECALL NOTIFICATION IN JUNE OF 2017, BUT DID NOT RECEIVE THE RECALL LETTER UNTIL JULY OF 2017. THE CONTACT TOOK THE VEHICLE TO THE LOCAL DEALER (BALISE TOYOTA 1399 RIVERDALE ST, WEST SPRINGFIELD, MA, 01089) FOR AN OIL CHANGE AND WAS INFORMED AFTERWARDS THAT THERE WAS A LEAK FROM THE REAR DIFFERENTIAL. THE DEALER STATED THAT THE PARTS WERE AVAILABLE. THE NEXT DAY, THE CONTACT WAS SUPPOSED TO BE NOTIFIED BY THE DEALER TO PICK UP THE VEHICLE. THE CONTACT WAS NOT NOTIFIED AND CALLED THE DEALER, BUT NO ONE ANSWERED. WHEN THE CONTACT RECEIVED A CALL BACK, HE WAS INFORMED THAT THE PARTS WERE UNAVAILABLE. THE DEALER STATED THAT THE PARTS SHOULD BE AVAILABLE BY JULY 20, 2017 ALTHOUGH THE VEHICLE HAD BEEN THERE SINCE JUNE 21, 2017. THERE WAS NO GUARANTEE THAT THE PARTS WOULD BE AVAILABLE ON THAT SPECIFIC DATE. THE MANUFACTURER WAS ALSO CONTACTED AT 1-800-331-4331 AND PROVIDED CASE NUMBER: 1706262451. THE MANUFACTURER CONFIRMED THAT THE PARTS WERE UNAVAILABLE FOR THE REPAIR AND SUGGESTED THAT THE CONTACT CALL AROUND TO OTHER DEALERS AND INQUIRE ON PART AVAILABILITY. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

NHTSA ODI #11004366

30,000 miles · Jul 11, 2017
Suspension

TL* THE CONTACT OWNS A 2016 TOYOTA TACOMA. THE CONTACT STATED THAT THE VEHICLE MADE AN ABNORMAL NOISE WHILE BEING OPERATED. THE FAILURE OCCURRED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO SPRING HILL TOYOTA WHERE IT WAS DIAGNOSED THAT THE LEAF SPRINGS WERE DEFECTIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MAN…

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TL* THE CONTACT OWNS A 2016 TOYOTA TACOMA. THE CONTACT STATED THAT THE VEHICLE MADE AN ABNORMAL NOISE WHILE BEING OPERATED. THE FAILURE OCCURRED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO SPRING HILL TOYOTA WHERE IT WAS DIAGNOSED THAT THE LEAF SPRINGS WERE DEFECTIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED AND OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS APPROXIMATELY 30,000.

NHTSA ODI #11004252

Mileage unknown · Jul 10, 2017
Power Train

TL* THE CONTACT OWNS A 2016 TOYOTA TACOMA. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V285000 (POWER TRAIN); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE DEALER WAS CONTACTED (BOB SMITH TOYOTA, LA CR…

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TL* THE CONTACT OWNS A 2016 TOYOTA TACOMA. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V285000 (POWER TRAIN); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE DEALER WAS CONTACTED (BOB SMITH TOYOTA, LA CRESCENTA, CALIFORNIA 91214) AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

NHTSA ODI #11004145

Mileage unknown · Jul 7, 2017
Unknown Or Other

RECALL #17V-285 AFTER FINDING THE AFOREMENTIONED RECALL ON LINE I TOOK MY TRUCK TO SPARKS TOYOTA TO HAVE IT CHECKED THE DEALER INFORMED ME THAT THE REAR DIFFERENTIAL GASKET WAS LEAKING AND WOULD HAVE TO BE REPLACED THEY HAVE HAD MY TRUCK FOR OVER SIXTY DAYS AND CANNOT TELL ME WHEN IT WILL BE REPAIRED OTHER THAN MID JUNE WHICH HA…

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RECALL #17V-285 AFTER FINDING THE AFOREMENTIONED RECALL ON LINE I TOOK MY TRUCK TO SPARKS TOYOTA TO HAVE IT CHECKED THE DEALER INFORMED ME THAT THE REAR DIFFERENTIAL GASKET WAS LEAKING AND WOULD HAVE TO BE REPLACED THEY HAVE HAD MY TRUCK FOR OVER SIXTY DAYS AND CANNOT TELL ME WHEN IT WILL BE REPAIRED OTHER THAN MID JUNE WHICH HAS PASSED AND THEN EARLY JULY. I CALLED TOYOTA USA AND THEY COULD NOT GIVE ME ANY INFORMATION OTHER THAN THE DEALER WOULD CALL ME. THE DEALER NEVER CALLED AND MY TRUCK IS STILL THERE.

NHTSA ODI #11003739

Mileage unknown · Jul 7, 2017
Power Train

NHTSA RECALL NUMBER 17V285 I TOOK MY TRUCK TO THE DEALERSHIP FOR THIS SAFETY RECALL ON MAY 9, 2017. TOYOTA SAYS THIS PROBLEM HAS A REMEDY, BUT MY DEALER SAYS THE PARTS ARE NOT AVAILABLE. NHTSA WEBSITE SAYS TO FILE A COMPLAINT IF REPAIRS ARE NOT MADE IN A TIMELY MANNER. I HAVE BEEN WITHOUT THE USE OF THIS VEHICLE FOR TWO MON…

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NHTSA RECALL NUMBER 17V285 I TOOK MY TRUCK TO THE DEALERSHIP FOR THIS SAFETY RECALL ON MAY 9, 2017. TOYOTA SAYS THIS PROBLEM HAS A REMEDY, BUT MY DEALER SAYS THE PARTS ARE NOT AVAILABLE. NHTSA WEBSITE SAYS TO FILE A COMPLAINT IF REPAIRS ARE NOT MADE IN A TIMELY MANNER. I HAVE BEEN WITHOUT THE USE OF THIS VEHICLE FOR TWO MONTHS, HOW LONG IS CONSIDERED "TIMELY"?

NHTSA ODI #11003624

16,000 miles · Jul 7, 2017
Power Train

TL* THE CONTACT OWNS A 2016 TOYOTA TACOMA. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V285000 (POWER TRAIN); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE VEHICLE WAS TAKEN TO TOYOTA VALLEJO (201 AU…

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TL* THE CONTACT OWNS A 2016 TOYOTA TACOMA. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V285000 (POWER TRAIN); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE VEHICLE WAS TAKEN TO TOYOTA VALLEJO (201 AUTO MALL PKWY, CA 94591, (707) 552-4545) WHERE A LEAK WAS IDENTIFIED BETWEEN THE REAR DIFFERENTIAL AND THE REAR AXLE. THE VEHICLE WAS NOT REPAIRED. THE DEALER STATED THAT NO PARTS WERE AVAILABLE FOR THE RECALL REPAIR AND COULD NOT PROVIDE AN ACCURATE DATE. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE AND THE CONTACT WAS PROVIDED CASE NUMBER: 1705250853. THE APPROXIMATE FAILURE MILEAGE WAS 16,000.

NHTSA ODI #11003622

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.

17V356000 · Engine

Jun 1, 2017

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2016-2017 Tacoma vehicles equipped with a six-cylinder engine. The affected vehicles have a crank position sensor that may malfunction, potentially resulting in an engine stall.

Consequence & remedy

Consequence: An engine stall may increase the risk of a crash.

Remedy: Toyota will notify owners, and dealers will replace the crank position sensor with an improved design, free of charge. The recall began July 26, 2017. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is H0H.

17V285000 · Power Train:driveline:differential Unit

Apr 27, 2017

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2016-2017 Tacoma vehicles. Oil may leak from the area where the rear differential carrier is assembled to rear axle housing.

Consequence & remedy

Consequence: If the vehicle is operated with an insufficient amount of oil in the rear differential, the differential may seize and cause a loss of control, increasing the risk of a crash.

Remedy: Toyota will notify owners, and dealers will inspect the rear differential for oil leakage. Based on the inspection, dealers will either tightening the fastening nuts or replace the fastening nuts and gasket. If the rear differential components are damaged, the rear differential carrier assembly will be replaced. The repairs will be performed free of charge. The recall June 19, 2017. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is H0G.

15V656000 · Air Bags:knee Bolster

Oct 14, 2015

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2016 Tacoma trucks manufactured August 20, 2015, to September 10, 2015. In the affected vehicles, incorrect bolts were used to install the driver's knee air bag module.

Consequence & remedy

Consequence: The incorrect bolts may loosen over time and affect the performance of the driver's knee air bag, increasing the risk of driver injury during a crash that necessitates deployment of the air bags.

Remedy: Toyota will notify owners, and dealers will install the correct driver's knee air bag module mounting bolts, free of charge. The recall began on November 19, 2015. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is F0T.

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.