Steering has gone out twice in 2 months. Rack and pinion had to be replaced.
2013 Toyota Tundra
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2013 Toyota Tundra do not stand out strongly from the model-year median of 144.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all Tundra years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
64 reports with mileage · 21 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 23 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel/propulsion System. Review the 13 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. 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.
Steering complaints
10 reportsHORN DOES NOT WORK WHEN A ROAD HAZARD WAS PRESENTED ATTEMPTED TO UTILIZE HORN NOTHING HAPPENED WHEN I TOOK TO TOYOTA THEY SAID IT IS THE WIRING HARNESS FROM THE AIRBAG AROUND THE STEERING COLUMN AND IS NOT COVERED UNDER WARRANTY AND IS NOT A RECALL BUT WHEN I LOOK UP ONLINE MANY PEOPLE FOR YEARS HAVE HAD ISSUES WITH THIS PROBLEM…
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HORN DOES NOT WORK WHEN A ROAD HAZARD WAS PRESENTED ATTEMPTED TO UTILIZE HORN NOTHING HAPPENED WHEN I TOOK TO TOYOTA THEY SAID IT IS THE WIRING HARNESS FROM THE AIRBAG AROUND THE STEERING COLUMN AND IS NOT COVERED UNDER WARRANTY AND IS NOT A RECALL BUT WHEN I LOOK UP ONLINE MANY PEOPLE FOR YEARS HAVE HAD ISSUES WITH THIS PROBLEM WAS SENT AWAY DRIVING MY VEHICLE WHICH I BELIEVE TO BE UNSAFE AS IF I DON'T HAVE AIRBAGS OR A HORN NOT SURE THAT MY VEHICLE IS LEGAL TO BE DRIVEN AT THIS POINT I FEEL THAT SINCE THESE ARE SAFETY ISSUES THEY SHOULD BE RECALLS AS IT HAS HAPPENED TO MANY PEOPLE I HAVE ONLY OWNED MY TRUCK SINCE DECEMBER I PICKED IT UP AT THE VERY END OF DECEMBER 2019. *TR
TL* THE CONTACT OWNS A 2013 TOYOTA TUNDRA. THE CONTACT HEARD AN ABNORMAL NOISE COMING FROM THE STEERING WHEEL WHILE IN USE. AN INDEPENDENT REPAIR FACILITY DIAGNOSED THAT THE INTERMEDIATE STEERING SHAFT MAY NEED TO BE REPLACED AND INFORMED THE CONTACT TO TAKE THE VEHICLE TO A DEALER FOR DIAGNOSTIC TESTING AND REPAIR. THE DEALER (…
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TL* THE CONTACT OWNS A 2013 TOYOTA TUNDRA. THE CONTACT HEARD AN ABNORMAL NOISE COMING FROM THE STEERING WHEEL WHILE IN USE. AN INDEPENDENT REPAIR FACILITY DIAGNOSED THAT THE INTERMEDIATE STEERING SHAFT MAY NEED TO BE REPLACED AND INFORMED THE CONTACT TO TAKE THE VEHICLE TO A DEALER FOR DIAGNOSTIC TESTING AND REPAIR. THE DEALER (SPRING HILL TOYOTA, 3062 GOVERNMENT BLVD, MOBILE, AL 36606, 1-(251) 450-1000) WAS NOTIFIED, BUT HAD NOT YET DIAGNOSED THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 40,000.
VIBRATETION ON THE STEERING WHEEL
I TOOK MY 2013 TOYOTA TUNDRA IN FOR A ROUTINE 55,000 MILE SERVICE AND THEY INFORMED ME THAT THE STEERING RACK IS FILLING WITH FLUID AND I COULD HAVE IT SIEZE UP ON ME WHILE DRIVING. I PURCHASED ALL WARRANTIES GOOD UNTIL 2020 BUT THEY FEEL THIS DESIGN FLAW SHOULD BE COVERED BY ME THE CONSUMER. I WAS QUOTED $3000.00+ FOR THE REPAI…
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I TOOK MY 2013 TOYOTA TUNDRA IN FOR A ROUTINE 55,000 MILE SERVICE AND THEY INFORMED ME THAT THE STEERING RACK IS FILLING WITH FLUID AND I COULD HAVE IT SIEZE UP ON ME WHILE DRIVING. I PURCHASED ALL WARRANTIES GOOD UNTIL 2020 BUT THEY FEEL THIS DESIGN FLAW SHOULD BE COVERED BY ME THE CONSUMER. I WAS QUOTED $3000.00+ FOR THE REPAIR. I BOUGHT THIS TRUCK AFTER PUTTING 100,000+ ON 2006 TUNDRA WITH NOTHING CLOSE TO THIS IS REPAIRS. WHAT IS GOING ON? THE STEERING CAN SIEZE UP, AND THIS ISN'T A RECALL? WHY WOULD I BUY ANOTHER TOYOTA? HOW DO THEY JUSTIFY LETTING THIS LEVEL OF A SAFETY ISSUE TO JUST DRIVE OUT OF THE DEALERSHIP AND SAY IT'S YOUR PROBLEM?
ON MARCH 6 OF 2014 I HAD BROUGHT MY 2013 TOYOTA TUNDRA IN FOR A VERY BAD VIBRATION ISSUE COMING FROM THE BOTTOM IT TURNS OUT WHEN THEY INSPECTED THE TRUCK THAT DRIVESHAFT HAD TO BE REPACKED I WAS IN A RENTAL CAR FOR TWO INCONVENIENCE ME FOR THOSE TWO DAYS WITH NO TRUCK THAT I BOUGHT TO HAVE AND USE FINALLY GOT THE TRUCK BACK EVE…
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ON MARCH 6 OF 2014 I HAD BROUGHT MY 2013 TOYOTA TUNDRA IN FOR A VERY BAD VIBRATION ISSUE COMING FROM THE BOTTOM IT TURNS OUT WHEN THEY INSPECTED THE TRUCK THAT DRIVESHAFT HAD TO BE REPACKED I WAS IN A RENTAL CAR FOR TWO INCONVENIENCE ME FOR THOSE TWO DAYS WITH NO TRUCK THAT I BOUGHT TO HAVE AND USE FINALLY GOT THE TRUCK BACK EVERYTHING SEEMS OKAY AND THEN ON 531 OF 14 WHICH IS APPROXIMATELY TWO MONTHS AFTER THE FIRST INCIDENT MY TRUCK WAS AGAIN BROUGHT IN FOR A ISSUE COMING FROM THE REAR END NOW THEY STATED ME THAT MY WHEEL BEARING HAD WENT WENT BAD WITH PROXIMATELY ONLY 11,256 MILES I'M NO MECHANIC BUT I DO KNOW WHEEL-BEARINGS GO WAY LONGER.. SEVEN MONTHS LATER WHAT DO YOU KNOW 18,000 MILES MY WHOLE FRONT END ALIGNMENT WAS WAY OUT OF WHACK I'M NO MECHANIC BUT THERE IS AN ISSUE WITH THIS TRUCK CAUSING ALL THESE PROBLEMS I HAD CALLED CORPORATE AND THEY PRETTY MUCH GAVE ME THE RUNAROUND THAT MY TRUCK WAS BOUGHT USED AND NOT NEW AT THEIR DEALERSHIP SO BASICALLY LEAVING ME WITH A TRUCK THAT SOMEONE HAD BOTTON WITH ONLY 500 MILES ON IT AND THEY KNEW IT HAD ISSUES AND NOW I'M STUCK WITH IT I RUNI'M RUNNING OUT OF OPTIONS I DON'T KNOW WHAT ELSE TO DO CAN YOU PLEASE HELP *JS
BETWEEN 1600 AND 2000 RPM STEERING WHEEL RESONATES ENOUGH TO BE DISTRACTING. *TR
I WAS PULLING INTO A PARKING SPOT WHEN MY POWER STEERING WENT OUT. I CHECKED THE FLUID AND THE FLUID LEVEL WAS LOW. I CALLED TOYOTA CUSTOMER CARE AND THEY SENT A TOW TRUCK TO PICK UP MY VEHICLE AND DELIVER IT TO THE NEAREST DEALERSHIP. WHILE LOADING THE TRUCK, A SEAL POPPED ON THE STEERING ARM AND FLUID STARTED LEAKING OUT. …
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I WAS PULLING INTO A PARKING SPOT WHEN MY POWER STEERING WENT OUT. I CHECKED THE FLUID AND THE FLUID LEVEL WAS LOW. I CALLED TOYOTA CUSTOMER CARE AND THEY SENT A TOW TRUCK TO PICK UP MY VEHICLE AND DELIVER IT TO THE NEAREST DEALERSHIP. WHILE LOADING THE TRUCK, A SEAL POPPED ON THE STEERING ARM AND FLUID STARTED LEAKING OUT. SPRINGHILL TOYOTA IS NOT HONORING MY MANUFACTURE OR EXTENDED WARRANTY BECAUSE I HAVE ADDED HEAVY DUTY COIL SPRINGS TO SUPPORT MY ROAD ARMOR BUMPER I INSTALLED FOR EXTRA PROTECTION. AFTER RESEARCHING, THIS SEEMS TO BE A COMMON PROBLEM IN THE 08-13 TUNDRA'S WITH OR WITHOUT MODIFICATIONS. TOYOTA EVEN ISSUED A TECHNICAL NOTICE "T-TT-0183-12" TO ADDRESS THIS ISSUE BUT THE DEALERSHIP IS DENYING THIS CLAIM. THIS COULD CAUSE A MAJOR ACCIDENT IF THIS HAPPENED AT HIGHWAY SPEEDS OR MAKING TURNS. THERE NEEDS TO BE A RECALL ISSUED OR A NOTICE TO NOTIFY ALL OF THE DEALERSHIPS OF THIS PROBLEM. *TR
BAD VIBRATION IN STEERING WHEEL AND GAS PEDAL AT 1600-1900 RPM RANGE. DOESN'T MATTER THE SPEED. VIBRATION IS WORSE WHEN VEHICLE IS UNDER LOAD OR TOWING . BOTH HANDS AND RIGHT FOOT FALL ASLEEP FROM VIBRATION ON LONG CONTINUOUS TRIPS , I'VE CONTACTED TOYOTA TWICE AND HAD TO DEALER TWICE . DEALER SAYS THIS IS NORMAL CHARACTERI…
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BAD VIBRATION IN STEERING WHEEL AND GAS PEDAL AT 1600-1900 RPM RANGE. DOESN'T MATTER THE SPEED. VIBRATION IS WORSE WHEN VEHICLE IS UNDER LOAD OR TOWING . BOTH HANDS AND RIGHT FOOT FALL ASLEEP FROM VIBRATION ON LONG CONTINUOUS TRIPS , I'VE CONTACTED TOYOTA TWICE AND HAD TO DEALER TWICE . DEALER SAYS THIS IS NORMAL CHARACTERISTIC OF TRUCK . TOYOTA DENIES ANY OTHER COMPLAINTS . THERE IS NOTHING NORMAL ABOUT THIS VIBRATION AS HANDS AND FOOT ARE AFFECTED BY THE VIBRATION TO THE POINT OF GOING NUMB , THERE ARE MANY MANY COMPLAINTS OF THIS ON MANY TOYOTA FORUMS. *TR
WHILE DRIVING AT 75 MPH ON INTERSTATE 40 STEERING COLUMN COMPLETELY FELL ON TO LAP, HAD TO PICK UP STEERING COLUMN AND TRY TO KEEP TRUCK UNDER CONTROL AT WHICH TIME ALL DASH LIGHTS CAME ON . AFTER GETTING TRUCK STOPPED NOTICED THAT BOLTS USED TO HOLD STEERING COLUMN WHERE NOT ATTACHED TO COLUMN. TOOK PICTURES OF STEERING COLUMN …
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WHILE DRIVING AT 75 MPH ON INTERSTATE 40 STEERING COLUMN COMPLETELY FELL ON TO LAP, HAD TO PICK UP STEERING COLUMN AND TRY TO KEEP TRUCK UNDER CONTROL AT WHICH TIME ALL DASH LIGHTS CAME ON . AFTER GETTING TRUCK STOPPED NOTICED THAT BOLTS USED TO HOLD STEERING COLUMN WHERE NOT ATTACHED TO COLUMN. TOOK PICTURES OF STEERING COLUMN AS PROOF , AT THIS TIME PUT BOLTS INTO COLUMN AND TIGHTEN BOLTS. CONTINUED TRIP CRUISE CONTROL ALSO INOPERATIVE NOW. *TR
Official recalls
521V920000 · Steering:hydraulic Power Assist System; Steering:rack And Pinion
Nov 23, 2021
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2008-2022 Sequoia and 2007-2021 Tundra vehicles. The power steering gear assembly may have been manufactured incorrectly, which can result in an oil leak.
Consequence & remedy
Consequence: An oil leak may cause a sudden loss of power steering assist, increasing the risk of a crash.
Remedy: Dealers will inspect and replace the power steering gear assembly as necessary, free of charge. Owner notification letters were mailed on January 21, 2022. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's numbers for this recall are 21TB10 and 21TA10.
Additional source detail variants (2)
Steering:hydraulic Power Assist System
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2008-2022 Sequoia and 2007-2021 Tundra vehicles. The power steering gear assembly may have been manufactured incorrectly, which can result in an oil leak.
Consequence: An oil leak may cause a sudden loss of power steering assist, increasing the risk of a crash.
Remedy: Dealers will inspect and replace the power steering gear assembly as necessary, free of charge. Owner notification letters were mailed on January 21, 2022. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's numbers for this recall are 21TB10 and 21TA10.
Steering:rack And Pinion
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2008-2022 Sequoia and 2007-2021 Tundra vehicles. The power steering gear assembly may have been manufactured incorrectly, which can result in an oil leak.
Consequence: An oil leak may cause a sudden loss of power steering assist, increasing the risk of a crash.
Remedy: Dealers will inspect and replace the power steering gear assembly as necessary, free of charge. Owner notification letters were mailed on January 21, 2022. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's numbers for this recall are 21TB10 and 21TA10.
17V311000 · Wheels:lugs/nuts/bolts/studs
May 11, 2017
Southeast Toyota Distributors, LLC (SET) is recalling certain model year 2013-2017 Toyota Tundra and Sequoia vehicles accessorized with Southeast Toyota accessory 20-inch Rockstar wheels installed by Southeast Toyota or a Southeast Toyota dealer. The Rockstar wheels were installed with lugnuts that may crack and detach.
Consequence & remedy
Consequence: Lugnuts that crack and detach may cause the wheels to separate from the vehicle, increasing the risk of a crash.
Remedy: SET will notify owners, and dealers will install new replacement lugnuts, free of charge. The recall began June 23, 2017. Owners may contact SET customer service at 1-866-405-4226. SET's number for this recall is SET17A.
14V429000 · Wheels:lugs/nuts/bolts/studs
Jul 16, 2014
Gulf States Toyota, Inc. (GST) is recalling certain model year 2013-2014 Toyota Tundra vehicles modified by GST as part of certain vehicle packages to be equipped with a combination of non-Toyota-brand 20-inch alloy wheels and chrome plated lug nuts. The coating on the lug nuts may give, causing the lug nuts to loosen or the wheel studs to fracture.
Consequence & remedy
Consequence: If the lug nuts loosen, or the wheel studs fracture, the wheel may separate from the vehicle, increasing the risk of a crash.
Remedy: GST will notify owners, and dealers will replace 20 lug nuts and torque them to specification, free of charge. The recall began in August 2014. Owners may contact GST customer service at 1-800-444-1074.
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.
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
1EA19001 · 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.
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