← New search

2012 Toyota Tacoma

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2012 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

261 reports with mileage · 34 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.

  • Engine. Review the 122 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel/propulsion System. Review the 52 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 35 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

16 crash reports0 fire reports6 injury reports

Electrical System complaints

19 reports
Clear category filter
212,400 miles · Jan 22, 2026
Electrical System

Odometer Fraud. The contact purchased a 2012 Toyota Tacoma. It was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 51,350 and at the time of registration, it was discovered that the mileage was 212,400. The VIN was not available

NHTSA ODI #11712767

Mileage unknown · Jan 27, 2021
Electrical SystemUnknown Or Other

HORN WILL NOT WORK WITH THE STEERING WHEEL CENTERED. IF YOU TURN THE STEERING WHEEL 90% TO THE LEFT OR RIGHT THE HORN HAS WORKED SOMETIMES. TOYOTA ISSUED A RECALL FOR THIS PROBLEM ON OTHER TACOMAS BUT NOT FOR THE 2012. THE TOYOTA DEALERSHIP IS SAYING THAT ITS MOST LIKELY THE CLOCK SPRING.

NHTSA ODI #11390421

97,000 miles · Jan 6, 2021
Electrical System

HORN WILL NOT WORK WITH THE STEERING WHEEL CENTERED. IF YOU TURN THE STEERING WHEEL TO THE LEFT OR RIGHT AND PUSHING THE HORN IT WILL WORK. TOYOTA ISSUED A RECALL FOR THIS PROBLEM ON 2005-2009 TACOMA BUT NOT FOR THE 2012. TOYOTA HAS KNOWN THAT THEY HAVE A PROBLEM WITH THE CLOCK SPRING THAT THEY WON'T ADDRESS ON THE 2012'S.

NHTSA ODI #11386862

80,000 miles · Nov 5, 2020
Electrical SystemUnknown Or Other

SUN VISOR , SPRING INSIDE VISOR BREAKS. MAKING THE VISOR HANG DOWN. WIRE HARNESS FROM AC BLOWER MOTOR, SO SOMEWHERE IN THE ENGINE COMPARTMENT OVERHEATS AND MELTS WIRING SO THE AIR CONDITIONING STOPS WORKING.

NHTSA ODI #11373218

55,125 miles · Oct 3, 2020
Air BagsElectrical System

TOYOTA HAS KNOW THAT THE CLOCK SPRING HAS BEEN FAILING FOR YEARS. THEY ISSUED A RECALL FOR MODEL YEARS 2005-2009. TRUCKS IN THE MODEL YEARS 2010-2012 ARE ALSO AFFECTED. PROBLEMS - LOSS OF HORN, LOSS OF AIRBAG. OPTIONAL IF EQUIPPED - LOSS OF CRUISE CONTROL AND/OR LOSS OF RADIO CONTROLS. THIS IS A MAJOR SAFETY HAZARD! LOSS OR H…

Read full complaint

TOYOTA HAS KNOW THAT THE CLOCK SPRING HAS BEEN FAILING FOR YEARS. THEY ISSUED A RECALL FOR MODEL YEARS 2005-2009. TRUCKS IN THE MODEL YEARS 2010-2012 ARE ALSO AFFECTED. PROBLEMS - LOSS OF HORN, LOSS OF AIRBAG. OPTIONAL IF EQUIPPED - LOSS OF CRUISE CONTROL AND/OR LOSS OF RADIO CONTROLS. THIS IS A MAJOR SAFETY HAZARD! LOSS OR HORN AND LOSS OF AIR BAGS ARE A VERY, VERY DANGEROUS SITUATION!!! THE CLOCK SPRING FAILS RANDOMLY SO YOU MIGHT NOT BE AWARE UNTIL IT IS TOO LATE!!!

NHTSA ODI #11362524

105,000 miles · Jun 10, 2019
Electrical System

DEFECTIVE CLOCK SPRING. OPEN CIRCUIT.

NHTSA ODI #11218844

78,000 miles · Jan 5, 2018
Electrical SystemEngine

THE CHECK ENGINE LIGHT AND THE TRAC OFF LIGHT CAME ON AS I WAS MERGING ONTO THE INTERSTATE. I IMMEDIATELY STOPPED THE VEHICLE, PULLED OVER, AND TOOK MY 2012 TOYOTA TACOMA WITH 78,000 MILES TO THE MECHANIC WHERE I LEFT IT OVERNIGHT FOR THEM TO LOOK AT IT IN THE MORNING. RUNNING A DIAGNOSTIC THEY FOUND CODE P2443 - SECONDARY AIR I…

Read full complaint

THE CHECK ENGINE LIGHT AND THE TRAC OFF LIGHT CAME ON AS I WAS MERGING ONTO THE INTERSTATE. I IMMEDIATELY STOPPED THE VEHICLE, PULLED OVER, AND TOOK MY 2012 TOYOTA TACOMA WITH 78,000 MILES TO THE MECHANIC WHERE I LEFT IT OVERNIGHT FOR THEM TO LOOK AT IT IN THE MORNING. RUNNING A DIAGNOSTIC THEY FOUND CODE P2443 - SECONDARY AIR INJECTION SWITCHING VALVE STUCK. I ASKED IF THEY HAD DEALT WITH THIS BEFORE AND THEY SAID THIS IS A COMMON PROBLEM FOR TOYOTA AND THEY HAVE DONE RECALLS ON BOTH THE TUNDRA AND SEQUOIA MODELS THAT HAVE HAD THESE ISSUES, BUT THE TACOMA HASN'T HAD A RECALL YET, EVEN THOUGH IT SEEMS TO BE JUST AS COMMON WITH THE SAME PARTS. THEY SAID THE COST OF PARTS AND LABOR WOULD BE AROUND $2,000. WHEN I ASKED THEM IF THE VEHICLE WAS SAFE TO DRIVE OFF THEIR LOT THEY SAID THESE CODES CAN CAUSE THE TACOMA TO GO INTO "LIMP MODE" WHERE YOU CAN LOOSE POWER, ACCELERATION, AND WON'T BE ABLE TO GO OVER 45MPH. I HATE TO THINK WHAT COULD HAVE HAPPENED IF I HAD KEPT MERGING ONTO THE INTERSTATE AND TRIED TO GET UP TO SPEED ONLY TO "LIMP" INTO TRAFFIC OR IF THIS HAD HAPPENED A MINUTE LATER ON THE INTERSTATE! EVERY THREAD I READ ONLINE FROM MULTIPLE SOURCES SHOW PEOPLE HAVING SIMILAR ISSUES FROM AS LOW AS 1,000 MILES ON THE TRUCK. THE ISSUES WITH THE SECONDARY AIR INJECTION PUMP AND SWITCHING VALVES SEEMS MOST COMMON BETWEEN 50,000-80,000 MILES, BUT EVENTUALLY DOES HAPPEN IN THE 2012-2015 TOCOMA MODELS.

NHTSA ODI #11060748

62,000 miles · Jul 29, 2017
Electrical SystemSteering

HORN QUIT WORKING, ONLY WORKS WHEN THE WHEEL IS TURNED TO THE LEFT, FUSES ARE GOOD AND SO ARE THE RELAYS.

NHTSA ODI #11011463

85,000 miles · Jul 10, 2017
Electrical SystemService BrakesUnknown Or Other

DRIVING AT HIGH WAY SPEED; THE ABS LIGHT, PARKING BRAKE LIGHT, TRACTION LIGHT, LOST POWER TO WINDOWS, A/C, RADIO, POWER STEERING, ENGINE WAS RUNNING ROUGH, THEN THE CHECK ENGINE LIGHT CAME ON. COULD BE A SAFETY ISSUE OF CONTROL OF VEHICLE FOR DRIVERS NOT PAYING ATTENTION. TOYOTA DEALER SAID THE ROOT CAUSE WAS A BAD CELL IN BATT…

Read full complaint

DRIVING AT HIGH WAY SPEED; THE ABS LIGHT, PARKING BRAKE LIGHT, TRACTION LIGHT, LOST POWER TO WINDOWS, A/C, RADIO, POWER STEERING, ENGINE WAS RUNNING ROUGH, THEN THE CHECK ENGINE LIGHT CAME ON. COULD BE A SAFETY ISSUE OF CONTROL OF VEHICLE FOR DRIVERS NOT PAYING ATTENTION. TOYOTA DEALER SAID THE ROOT CAUSE WAS A BAD CELL IN BATTERY THAT CAUSED THE IGN#2 FUSE TO BE BLOWN. THESE BATTERIES HAVE KNOWN ISSUES TO BE BAD FROM THE FACTORY. REPORTED EARLIER ABOUT 30000 MILES THE FACTORY BATTERY WOULD NOT START VEHICLE AND DEALER SAID THEY REPLACED BECAUSE OF A BAD CELL. I OWN A 2008 TOYOTA TACOMA ALSO , SAME MODEL AND MAKE AS BEING REPORTED AND THAT BATTERY HAS BEEN REPLACED 2 TIMES FOR SAME REASON.

NHTSA ODI #11004155

84,000 miles · May 16, 2017
Electrical System

MY 2012 TACOMA HAS A SPIRAL WIRE ISSUE THAT DEALER REFUSES TO FIX EVEN THOUGH THIS PART IS ASSOCIATED WITH THE TAKATA RECALL IN PREVIOUS YEAR MODELS WONDERING WHY THE RECALL STOPPED AT 2011 AND DOES NOT COVER THE ISSUE WITH MY TRUCK. CURRENTLY ONLY AFFECTIN THE USE OF MY HORN BUT AS SEEN IN PREVIOUS RECALLS COULD AFFECT MORE L…

Read full complaint

MY 2012 TACOMA HAS A SPIRAL WIRE ISSUE THAT DEALER REFUSES TO FIX EVEN THOUGH THIS PART IS ASSOCIATED WITH THE TAKATA RECALL IN PREVIOUS YEAR MODELS WONDERING WHY THE RECALL STOPPED AT 2011 AND DOES NOT COVER THE ISSUE WITH MY TRUCK. CURRENTLY ONLY AFFECTIN THE USE OF MY HORN BUT AS SEEN IN PREVIOUS RECALLS COULD AFFECT MORE LTHINGS LATER ON.

NHTSA ODI #10986103

Official recalls

7

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.

14V475000 · Equipment:other:labels

Aug 4, 2014

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2008-2014 FJ Cruiser and Tacoma vehicles equipped with accessory wheels and tires installed by Toyota or dealers prior to the vehicle's first sale. The affected vehicles may list incorrect spare tire size and/or cold tire inflation information on the tire placard. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard No. 110, "Tire Selection and Rims for Passenger Cars."

Consequence & remedy

Consequence: If the spare tire is inflated to the incorrect pressure provided on the placard, tire failure may occur while it is being driven on, increasing the risk of a crash.

Remedy: For the involved vehicles, overlay stickers to correct the tire placard will either be mailed to owners or provided to dealers for placement over the incorrect information on the placard. The recall is expected to begin in September 2014. Owners may contact Toyota customer service at 1-800-331-4331.

14V054000 · Electronic Stability Control (esc); Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

Feb 12, 2014

Toyota is recalling certain model year 2012 and 2013 Toyota Tacoma and Lexus RX350 vehicles and certain model year 2012 Toyota Rav4 vehicles. In the affected vehicles, the brake system contains a brake actuator that adjusts the fluid pressure of each wheel cylinder. An electrical component within the actuator may experience an increased resistance resulting in the illumination of various warning lights, including those for the Vehicle Stability Control (VSC) system, Antilock Brake System (ABS), and Traction Control system.

Consequence & remedy

Consequence: If this occurs, these systems could become inoperative, reducing the directional control assistance, increasing the risk of a crash.

Remedy: Toyota will notify owners, and Toyota and Lexus dealers will update the software for the Skid Control electronic control unit, free of charge. The recall began on March 28, 2014. Owners may contact Toyota at 1-800-331-4331.

Additional source detail variants (2)

Electronic Stability Control (esc)

Toyota is recalling certain model year 2012 and 2013 Toyota Tacoma and Lexus RX350 vehicles and certain model year 2012 Toyota Rav4 vehicles. In the affected vehicles, the brake system contains a brake actuator that adjusts the fluid pressure of each wheel cylinder. An electrical component within the actuator may experience an increased resistance resulting in the illumination of various warning lights, including those for the Vehicle Stability Control (VSC) system, Antilock Brake System (ABS), and Traction Control system.

Consequence: If this occurs, these systems could become inoperative, reducing the directional control assistance, increasing the risk of a crash.

Remedy: Toyota will notify owners, and Toyota and Lexus dealers will update the software for the Skid Control electronic control unit, free of charge. The recall began on March 28, 2014. Owners may contact Toyota at 1-800-331-4331.

Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

Toyota is recalling certain model year 2012 and 2013 Toyota Tacoma and Lexus RX350 vehicles and certain model year 2012 Toyota Rav4 vehicles. In the affected vehicles, the brake system contains a brake actuator that adjusts the fluid pressure of each wheel cylinder. An electrical component within the actuator may experience an increased resistance resulting in the illumination of various warning lights, including those for the Vehicle Stability Control (VSC) system, Antilock Brake System (ABS), and Traction Control system.

Consequence: If this occurs, these systems could become inoperative, reducing the directional control assistance, increasing the risk of a crash.

Remedy: Toyota will notify owners, and Toyota and Lexus dealers will update the software for the Skid Control electronic control unit, free of charge. The recall began on March 28, 2014. Owners may contact Toyota at 1-800-331-4331.

13V494000 · Tires:temporary/emergency Spare Tire

Oct 17, 2013

Southeast Toyota Distributors, LLC (SET) is recalling certain model year 2012-2013 Tacoma vehicles equipped with 18" Maverick Alloy Wheels. In the affected vehicles, the spare tire requires the use of a different style of lug nut to attach it to the vehicle than the other wheels use. These lug nuts were not provided with the vehicle.

Consequence & remedy

Consequence: If the spare tire/wheel is installed on the vehicle using the lug nuts from another wheel, damage to the wheel could result and may eventually lead to a loose wheel, increasing the risk of a crash.

Remedy: SET will notify owners, and dealers will: (a) Install a Warning Label on the spare tire/wheel, (b) supply a bag containing proper spare wheel lug nuts, and (c) place an Owner's Manual Addendum in the vehicle's glove box. The recall began on January 23, 2014. Owners may contact SET at 1-954-429-2000.

13V123000 · Equipment:other:labels

Apr 9, 2013

Southeast Toyota is recalling certain model year 2008 and 2010-2013 Toyota Tundra, 2010-2012 Rav4, 2012 Toyota Sequoia, 2010-2011 Toyota Corolla, 2010-2011 Toyota Camry and Camry Hybrid, 2010-2013 Toyota Highlander and Highlander Hybrid, 2010-2013 Toyota FJ Cruiser, 2011 Toyota Land Cruiser, 2010-2013 Toyota Venza, 2010-2011 Toyota 4Runner, 2010-2013 Toyota Tacoma, 2011-2012 Toyota Sienna, 2012 Toyota Prius, 2013 Scion FR-S, 2011 Scion XD, 2011 Scion XB, and 2012 Scion TC vehicles. These vehicles were sold with labels that were outside the allowable one percent of accuracy of actual weight added. Thus, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) Number 110, "Tire Selection and Rims."

Consequence & remedy

Consequence: An inaccurate label could lead to owners overloading their vehicles and tires. An overloaded vehicle can result in a tire failure which may result in a vehicle crash, personal injury, or property damage.

Remedy: Southeast Toyota will notify owners and provide a corrected label with instructions concerning its installation. A small group of the affected vehicles will need additonal remedies which are still being developed. The recall began on May 28, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.

13V014000 · Air Bags:frontal:sensor/control MODULE-INACTIVE ; Seats

Jan 16, 2013

Southeast Toyota Distributors, LLC (SET) is recalling certain models interspersed through model years 2009 through 2013 as follows: model year 2009-2012 Tacoma, 4Runner, Camry, Camry Hybrid, Prius, and RAV4; model year 2009-2010 Avalon, FJ Cruiser, and Highlander Hybrid; model year 2010-2013 model year Corolla, Sienna and Tundra; model year 2009-2013 Highlander and Venza; model year 2012 Prius V; and model year 2010-2012 Sequoia. During modification by SET to include accessories such as leather seat covers, seat heaters or headrest DVD systems, these vehicles may not have had the passenger seat occupant sensing system calibration tested. Without passing the calibration test, the occupant sensing system may not operate as designed.

Consequence & remedy

Consequence: If the front passenger seat occupant sensing system is out of calibration, the front passenger airbags may not deploy or they may deploy inappropriately for the passenger's size and position. This could increase the risk of personal injury during the event of a vehicle crash necessitating airbag deployment.

Remedy: Southeast Toyota will notify owners, and dealers will test the sensitivity of the occupant detection sensors, and recalibrate them as necessary. The recall began on March 21, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.

Additional source detail variants (2)

Seats

Southeast Toyota Distributors, LLC (SET) is recalling certain models interspersed through model years 2009 through 2013 as follows: model year 2009-2012 Tacoma, 4Runner, Camry, Camry Hybrid, Prius, and RAV4; model year 2009-2010 Avalon, FJ Cruiser, and Highlander Hybrid; model year 2010-2013 model year Corolla, Sienna and Tundra; model year 2009-2013 Highlander and Venza; model year 2012 Prius V; and model year 2010-2012 Sequoia. During modification by SET to include accessories such as leather seat covers, seat heaters or headrest DVD systems, these vehicles may not have had the passenger seat occupant sensing system calibration tested. Without passing the calibration test, the occupant sensing system may not operate as designed.

Consequence: If the front passenger seat occupant sensing system is out of calibration, the front passenger airbags may not deploy or they may deploy inappropriately for the passenger's size and position. This could increase the risk of personal injury during the event of a vehicle crash necessitating airbag deployment.

Remedy: Southeast Toyota will notify owners, and dealers will test the sensitivity of the occupant detection sensors, and recalibrate them as necessary. The recall began on March 21, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.

Air Bags:frontal:sensor/control MODULE-INACTIVE

Southeast Toyota Distributors, LLC (SET) is recalling certain models interspersed through model years 2009 through 2013 as follows: model year 2009-2012 Tacoma, 4Runner, Camry, Camry Hybrid, Prius, and RAV4; model year 2009-2010 Avalon, FJ Cruiser, and Highlander Hybrid; model year 2010-2013 model year Corolla, Sienna and Tundra; model year 2009-2013 Highlander and Venza; model year 2012 Prius V; and model year 2010-2012 Sequoia. During modification by SET to include accessories such as leather seat covers, seat heaters or headrest DVD systems, these vehicles may not have had the passenger seat occupant sensing system calibration tested. Without passing the calibration test, the occupant sensing system may not operate as designed.

Consequence: If the front passenger seat occupant sensing system is out of calibration, the front passenger airbags may not deploy or they may deploy inappropriately for the passenger's size and position. This could increase the risk of personal injury during the event of a vehicle crash necessitating airbag deployment.

Remedy: Southeast Toyota will notify owners, and dealers will test the sensitivity of the occupant detection sensors, and recalibrate them as necessary. The recall began on March 21, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.

12V158000 · Equipment:other:labels

Apr 10, 2012

GULF STATES TOYOTA (GST) IS RECALLING CERTAIN MODEL YEAR 2012 TACOMA TRUCKS. THE TIRE AND LOADING INFORMATION PLACARD ON EACH VEHICLE CONTAINS INACCURATE SPARE TIRE SIZE AND COLD INFLATION PRESSURE INFORMATION. THUS, THESE VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110,”TIRE SELECTION AND RIMS.”

Consequence & remedy

Consequence: AN INCORRECT PLACARD COULD LEAD TO IMPROPER SPARE TIRE USE OR REPLACEMENT WHICH COULD RESULT IN A TIRE FAILURE, INCREASING THE RISK OF A CRASH.

Remedy: GST WILL NOTIFY OWNERS, AND SEND EACH OWNER A CORRECTED PLACARD, FREE OF CHARGE. THE SAFETY RECALL BEGAN ON JUNE 5, 2012. OWNERS MAY CONTACT GULF STATES TOYOTA, INC. AT 1-713-744-3465.

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.