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2012 Acura Tl

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2012 Acura Tl do not stand out strongly from the model-year median of 124.

About this comparison →

How this year compares

Owner complaints by model year

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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

82 reports with mileage · 48 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.

  • Air Bags. Review the 43 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 27 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Steering. Review the 25 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

3 crash reports0 fire reports4 injury reports

What owners actually said

130 reports
200 miles · Jan 25, 2013
Vehicle Speed ControlWheels

VEHICLE HAVE A VIBRATION ON A GAS PEDAL AND STEERING WHEEL OVER 70MPH. IT DID NOT GO AWAY AFTER REBALANCING. I PURCHASED A SET OF AFTERMARKET WHEELS, VIBRATION STILL THERE. DEALER WON'T FIX. *TR

NHTSA ODI #10494672

100 miles · Jan 22, 2013
EnginePower Train

PURCHASED MY NEW 2012 SH-AWD ACURA TL ADVANCE IN MARCH OF 2012. THE CAR HAD LESS THAN 100 MILES WHEN PURCHASED AND CURRENTLY HAS 5K MILES (JANUARY 2013). THE CAR VIBRATES WHEN DRIVING AT SPEEDS BETWEEN 40 AND 80 MPH. IT FEELS LIKE THE TIRES ARE FLAT SPOTTED OR WHEELS ARE OUT OF BALANCE. THE WHEELS AND TIRES HAVE BEEN CHECKED…

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PURCHASED MY NEW 2012 SH-AWD ACURA TL ADVANCE IN MARCH OF 2012. THE CAR HAD LESS THAN 100 MILES WHEN PURCHASED AND CURRENTLY HAS 5K MILES (JANUARY 2013). THE CAR VIBRATES WHEN DRIVING AT SPEEDS BETWEEN 40 AND 80 MPH. IT FEELS LIKE THE TIRES ARE FLAT SPOTTED OR WHEELS ARE OUT OF BALANCE. THE WHEELS AND TIRES HAVE BEEN CHECKED AND CONFIRMED BY THE DEALER ON 2 SEPARATE OCCASIONS AS OK. THE DEALER CLASSIFIED THIS VIBRATION AS A "VEHICLE CHARACTERISTIC." I'M WORRIED IT IS THE SIGN OF A MAJOR ISSUE THEY DON'T WANT TO DEAL WITH. *TR

NHTSA ODI #10493791

6,650 miles · Dec 24, 2012
Steering

GOT ELECTRIC POWER STEERING (EPS) WARNING LIGHT AND LOST THE POWER ASSIST. COULD NOT RESET AND HAD TO DRIVE CAR TO DEALER WITH NO POWER ASSIST. VERY DIFFICULT TO STEER AT LOW SPEED. *TR

NHTSA ODI #10490025

120,000 miles · Dec 20, 2012
Steering

12/19/2012 9AM, I WAS DRIVING CALIFORNIA FREEWAY (110) ABOUT 30 MILES/HR. WEATHER WAS CLEAR, ROAD WAS DRY AND NO POT HOLES. I GOT "POWER STEERING WARNING" LIGHTS/BEEPS AND I COULD NOT STEER THE CAR. IT WAS VERY STIFF TO STEER AND I BARELY PULLED OVER TO THE CURVE.(ENGINE WAS STILL RUNNING). AND I STOPPED THE ENGINE AND TURNED B…

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12/19/2012 9AM, I WAS DRIVING CALIFORNIA FREEWAY (110) ABOUT 30 MILES/HR. WEATHER WAS CLEAR, ROAD WAS DRY AND NO POT HOLES. I GOT "POWER STEERING WARNING" LIGHTS/BEEPS AND I COULD NOT STEER THE CAR. IT WAS VERY STIFF TO STEER AND I BARELY PULLED OVER TO THE CURVE.(ENGINE WAS STILL RUNNING). AND I STOPPED THE ENGINE AND TURNED BACK ON THEN THE PROBLEM DISAPPEARED. BUT IT WAS THE SCARY EXPERIENCE ON THE FREEWAY. I TOOK MY CAR TO THE DEALER, SANTA MONICA ACURA AND LEFT OVERNIGHT FOR TROUBLESHOOT. NEXT DAY, THE SERVICE ADVISER TOLD ME THAT THEY COULD NOT DUPLICATE THE PROBLEM, RAN ALL THE TESTS AND CONTACTED "TECH SERVICE" BUT NOTHING ABNORMAL FOUND. THEY SAID IT IS OK TO DRIVE. MY CONCERN IS WHAT IF IT HAPPENS AGAIN ON THE CURVY ROAD AT HIGH SPEED AND I LOSE THE CONTROL OF STEERING. *TR

NHTSA ODI #10489381

75 miles · Dec 5, 2012
Vehicle Speed Control

TL* THE CONTACT OWNS A 2012 ACURA TL. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 45 MPH, THE ACCELERATOR PEDAL WAS DEPRESSED AND THE VEHICLE FAILED TO ACCELERATE. THE CONTACT MENTIONED THE FAILURE OCCURS INTERMITTENTLY AND AT DIFFERENT SPEEDS. THE VEHICLE WAS TAKEN TO THE DEALER FOR A DIAGNOSTIC TESTING. THE TECHNICIAN …

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TL* THE CONTACT OWNS A 2012 ACURA TL. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 45 MPH, THE ACCELERATOR PEDAL WAS DEPRESSED AND THE VEHICLE FAILED TO ACCELERATE. THE CONTACT MENTIONED THE FAILURE OCCURS INTERMITTENTLY AND AT DIFFERENT SPEEDS. THE VEHICLE WAS TAKEN TO THE DEALER FOR A DIAGNOSTIC TESTING. THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE FAILURE AND DID NOT OFFER ANY FURTHER ASSISTANCE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 75 AND THE CURRENT MILEAGE WAS 700.

NHTSA ODI #10487414

1,200 miles · Nov 26, 2012
Air Bags

PASSENGER SIDE AIRBAG WARNING LIGHT COMES ON INTERMITTENTLY FOR SEVERAL SECONDS (LONG ENOUGH TO HAVE PHOTOGRAPHED IT ON CELL PHONE ON SEVERAL OCCASIONS AND SENT TO RALLEYE ACURA DEALERSHIP) ALTHOUGH A PASSENGER IS SEATED. PASSENGER IS FEMALE, 125 LBS, 5' 6" TALL. VEHICLE HAS BEEN BROUGHT BACK ABOUT 4 TIMES FOR THIS COMPLAINT. …

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PASSENGER SIDE AIRBAG WARNING LIGHT COMES ON INTERMITTENTLY FOR SEVERAL SECONDS (LONG ENOUGH TO HAVE PHOTOGRAPHED IT ON CELL PHONE ON SEVERAL OCCASIONS AND SENT TO RALLEYE ACURA DEALERSHIP) ALTHOUGH A PASSENGER IS SEATED. PASSENGER IS FEMALE, 125 LBS, 5' 6" TALL. VEHICLE HAS BEEN BROUGHT BACK ABOUT 4 TIMES FOR THIS COMPLAINT. EACH TIME IT HAS BEEN PROCLAIMED "FIXED." THE LAST TIME WAS ABOUT 6 WEEKS AGO AND IT WAS IN SHOP FOR ABOUT 8 DAYS. A WEEK AFTER THAT IT HAPPENED AGAIN. DEALER WAS TOLD AND SAID THEY WOULD "GET BACK TO US." THEY HAVE NOT. CALLED ACURA CUSTOMER RELATIONS AND [XXX] IN THAT DEPARTMENT CALLED BACK THIS MORNING. HE INSISTS IT IS THE PASSENGER'S FAULT, THERE IS NOTHING WRONG WITH THE CAR AND IT IS "SUPPOSED TO FUNCTION THIS WAY." INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR

NHTSA ODI #10486025

250 miles · Jul 28, 2012
Electronic Stability Control (esc)Fuel/propulsion SystemPower Train

TURNED CORNER IN LARGE CENTER CITY AND HIT A CONSTRUCTION LARGE POT HOLE AND/OR OBSTRUCTION ON THE LEFT REAR. AFTER COMPLETING TURN ONTO A NARROW ONE-WAY STREET ACCELERATION INCREASED, BRAKES DID NOT WORK, ENGINE COULD NOT BE TURNED OFF, GEARS COULD NOT MOVE. AFTER GOING THROUGH TWO MAJOR INTERSECTIONS WITHOUT ACCIDENT I KEPT …

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TURNED CORNER IN LARGE CENTER CITY AND HIT A CONSTRUCTION LARGE POT HOLE AND/OR OBSTRUCTION ON THE LEFT REAR. AFTER COMPLETING TURN ONTO A NARROW ONE-WAY STREET ACCELERATION INCREASED, BRAKES DID NOT WORK, ENGINE COULD NOT BE TURNED OFF, GEARS COULD NOT MOVE. AFTER GOING THROUGH TWO MAJOR INTERSECTIONS WITHOUT ACCIDENT I KEPT PULLING ON THE EMERGENCY BRAKE. THE CAR SLOWLY STOPPED AND WAS THEN PERFECTLY NORMAL. COULD USE THE BRAKES, SHIFT, ETC. I PARKED OVERNIGHT IN A GARAGE. HAD THE CAR TOWED TO DEALER THE NEXT DAY (7/21/12), WHERE IT IS STILL UNRESOLVED. DEALER SAID CAR IS OK, BUT IS NOW BEING ANALYZED BY ACURA CORPORATE ENGINEERS. I HAD THREE OTHER PEOPLE WHO WERE IN THE CAR AT THE TIME, INCLUDING MY WIFE, WHO WILL NOT EVER GO INTO THIS CAR. THE CAR WAS ONLY 10 DAYS AFTER PURCHASING. *TR

NHTSA ODI #10468077

100 miles · Jun 30, 2012
Power Train

I PURCHASED MY 2012 ACURA TL TECH ON 4/30/12 WHICH HAD 100 MILES ON THE ODOMETER. WHEN ACCELERATING AT SPEEDS BETWEEN 65 MPH AND 80MPH, THERE APPEARS TO BE A SLIGHT VIBRATION IMITATING FROM THE GAS PEDAL AND DRIVERS SIDE FLOOR. THIS SEEMS TO BE MECHANICAL AS BALANCING IS NOT AN ISSUE AND IT FEELS RHYTHMIC IN NATURE. I HAVE DRIVE…

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I PURCHASED MY 2012 ACURA TL TECH ON 4/30/12 WHICH HAD 100 MILES ON THE ODOMETER. WHEN ACCELERATING AT SPEEDS BETWEEN 65 MPH AND 80MPH, THERE APPEARS TO BE A SLIGHT VIBRATION IMITATING FROM THE GAS PEDAL AND DRIVERS SIDE FLOOR. THIS SEEMS TO BE MECHANICAL AS BALANCING IS NOT AN ISSUE AND IT FEELS RHYTHMIC IN NATURE. I HAVE DRIVEN ON THIS FOR 2 MONTHS BEFORE REALIZING THIS CANNOT BE RIGHT. TOOK IT TO THE DEALER AND THEY COULD NOT FIND ANYTHING, USED THE COOKIE CUTTER SCRIPTED "VEHICLE CHARACTERISTIC." THEY CLAIM THEY WILL CONTACT ACURA TECH TO WORK THROUGH POSSIBLE SOLUTIONS. MY CONCERNS ARE WHEN RESEARCHING IT APPEARS THIS IS A TREND HOWEVER NO TSB'S HAVE BEEN ISSUED AT THIS POINT. I HAVE SEEN THINGS SUCH AS AXLE OR TRANSMISSION CONCERNS. I COMMUTE VERY HEAVILY FOR WORK AND CHAUFFEUR MY 2 1/2 DAUGHTER AROUND WITH SERIOUS SAFETY CONCERNS. I HAVE PROBED A POSSIBLE TRADE FOR ANOTHER VEHICLE HOWEVER I WOULD HAVE TO TAKE A $10K HIT WHICH IS ABSOLUTELY UNACCEPTABLE. PLEASE OPEN A CASE TO RESEARCH THIS ISSUE! *TR

NHTSA ODI #10463638

1,000 miles · May 22, 2012
Power TrainStructureWheels

I PURCHASED A NEW 2012 ACURA TL ON 2/8/12. EACH DAY I DRIVE 35 MILES TO AND FROM WORK ON INTERSTATE 75 WITH A POSTED SPEED OF 70 MPH. WITHIN A FEW DAYS I NOTICED THAT WHEN THE CAR REACHED 70 MPH A PERSISTENT HIGH FREQUENCY VIBRATION CAME UP THROUGH THE DRIVER'S SIDE FLOOR AND IN PARTICULAR THROUGH THE ACCELERATOR PEDAL. BY TH…

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I PURCHASED A NEW 2012 ACURA TL ON 2/8/12. EACH DAY I DRIVE 35 MILES TO AND FROM WORK ON INTERSTATE 75 WITH A POSTED SPEED OF 70 MPH. WITHIN A FEW DAYS I NOTICED THAT WHEN THE CAR REACHED 70 MPH A PERSISTENT HIGH FREQUENCY VIBRATION CAME UP THROUGH THE DRIVER'S SIDE FLOOR AND IN PARTICULAR THROUGH THE ACCELERATOR PEDAL. BY THE TIME I REACHED WORK OR HOME MY ENTIRE RIGHT FOOT AND CALF WAS NUMB AND BUZZING. IT FELT AS THOUGH I HAD 'FALLEN ASLEEP" AND CAUSED THE NERVES TO BE TEMPORARILY NON-FUNCTIONAL. I TOOK THE CAR TO THE DEALER AND THEY TOLD ME THE TIRES WERE OUT OF BALANCE, HOWEVER, WHEN THEY CHECKED THEM THEY WERE NOT. THEN THEY TOLD ME THAT THE FRONT RIGHT TIRE HAD A TEAR IN IT AND IT WOULD HAVE TO BE REPLACED. THEY ORDERED A NEW TIRE AND INSTALLED IT AND TRIED TO CHARGE ME $399 BUT THANKFULLY THE MANAGER GAVE IT TO ME A NO COST. THE CAR HAS BEEN TO THE DEALER SIX TIMES. AT THE DEALER URGING I OPENED A COMPLAINT WITH HONDA HEADQUARTERS. FILE NUMBER B012012-04-1601260. THE REPRESENTATIVE I DEALT WITH WAS "PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA),5 U.S.C. 552 (B) (6) WHO CAN BE REACHED AT "PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA),5.U.S.C 522 (B) (6). THREE CALLS WERE RECORDED BY HONDA. ONE OF THE SENIOR PERSONS AT THE DEALERSHIP CONFIDED IN ME THAT EVERYONE AT ACURA KNOWS ABOUT THIS PROBLEM AND THERE IS NO FIX."PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 522 (B)(6) TOLD ME THE SAME. SHE ACTUALLY CALLED THE VIBRATION A "VEHICLE CHARACTERISTIC." VIBRATION AT 70 MPH IS NOT A GOOD THING AND IN TIME IT MAY LEAD TO CATASTROPHIC CONSEQUENCES. BOTH ACURA AND THE DEALER REFUSED TO BUY ME OUT OF THIS VEHICLE AND SO LAST SATURDAY I TRADED OUT TO ANOTHER CAR AT A SUBSTANTIAL COST TO MYSELF. *TT UPDATED 07/09/12

NHTSA ODI #10459240

100 miles · Apr 12, 2012
Seats

THE PASSENGER SIDE FRONT SEAT IN THIS VEHICLE IS SO LOOSE IT ROCKS BACK AND FORTH AND FROM SIDE TO SIDE. IT FEELS AS IF THE SEAT IS GOING TO COLLAPSE IN THE EVENT OF AN ACCIDENT AND INJURE THE PERSON IN THIS SEAT, AS WELL AS ANY PASSENGER SEATED BEHIND IT, IN REAR PASSENGER SEAT. I HAVE HAD THE SEAT INSPECTED BY ACURA DEALERS…

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THE PASSENGER SIDE FRONT SEAT IN THIS VEHICLE IS SO LOOSE IT ROCKS BACK AND FORTH AND FROM SIDE TO SIDE. IT FEELS AS IF THE SEAT IS GOING TO COLLAPSE IN THE EVENT OF AN ACCIDENT AND INJURE THE PERSON IN THIS SEAT, AS WELL AS ANY PASSENGER SEATED BEHIND IT, IN REAR PASSENGER SEAT. I HAVE HAD THE SEAT INSPECTED BY ACURA DEALERSHIP, AND SENT MULTIPLE LETTERS TO BOTH ACURA AND HONDA MOTOR CO. THEY CLAIM THIS IS A NORMAL "CHARACTERISTIC" OF THIS PASSENGER SEAT IN THIS CAR (MAKE/MODEL YR). THE SERVICE MANAGER AT THE DEALER INDICATED THAT THE PROBLEM MAY HAVE SOMETHING TO DO WITH THE WEIGHT SENSOR ON THE PASSENGER SIDE AIR BAG CONTROL (THE DRIVER SEAT IS STABLE AND FULLY SUPPORTIVE). NO OTHER CAR SEAT THAT I HAVE EVER SAT IN FEELS THIS LOOSE AND HAS THIS MUCH MOTION TO IT. IT FEELS REALLY UNSAFE AND MAKES THE PASSENGER IN THIS SEAT EXPERIENCE MOTION SICKNESS. CAN YOU PLEASE CONDUCT AN INVESTIGATION INTO WHETHER OR NOT THIS PASSENGER SIDE FRONT SEAT CAN HOLD UP IN THE EVENT OF AN ACCIDENT? *TR

NHTSA ODI #10454975

Official recalls

3

19V500000 · Air Bags:frontal:driver Side:inflator Module

Jun 27, 2019

Honda (American Honda Motor Co.) is recalling certain 2013 Acura ILX, 2015 RDX, 2005-2010 and 2012 RL, 2009-2014 TL, 2010 and 2012 ZDX, 2007-2011 CR-V, 2011-2013 and 2015 CR-Z, 2009-2013 Fit, 2013 Fit EV, 2010-2011 and 2013 Insight and 2007-2014 Ridgeline vehicles. These vehicles are equipped with driver frontal air bag inflators assembled as a recall remedy part or replacement service part, that may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.

Consequence & remedy

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.

Remedy: Honda will notify owners, and dealers will replace the driver frontal air bag inflator, free of charge. The recall began August 12, 2019. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are S5B and W59.

19V182000 · Air Bags:frontal:driver Side:inflator Module

Mar 6, 2019

Honda (American Honda Motor Co.) is recalling specific 2003 Acura 3.2CL, 2013-2016 ILX, 2013-2014 ILX Hybrid, 2003-2006 MDX, 2007-2016 RDX, 2002-2003 3.2TL, 2004-2006, and 2009-2014 TL, 2010-2013 ZDX and 2001-2007 and 2009 Honda Accord, 2001-2005 Civic, 2003-2005 Civic Hybrid, 2001-2005 Civic GX NGV, 2002-2007 and 2010-2011 CR-V, 2003-2011 Element, 2007 Fit, 2002-2004 Odyssey, 2003-2008 Pilot, and 2006-2014 Ridgeline vehicles. The affected vehicles received a replacement driver air bag inflator as part of a previous Takata inflator recall remedy or a replacement driver air bag module containing the same inflator type as a service part. Due to a manufacturing error, in the event of a crash necessitating deployment of the driver frontal air bag, these inflators may explode.

Consequence & remedy

Consequence: An explosion of an inflator within the driver frontal air bag module may result in sharp metal fragments striking the driver, front seat passenger or other occupants resulting in serious injury or death.

Remedy: Honda will notify owners, and dealers will replace the driver's air bag inflator with an alternate inflator, free of charge. The recall began April 10, 2019. Honda owners may contact customer service at 1-888-234-2138. Honda's number for this recall is O41. Acura owners may contact customer service at 1-888-234-2138. Acura's number for this recall is U40.

16V061000 · Air Bags:frontal:driver Side:inflator Module

Feb 3, 2016

Honda (American Honda Motor Co.) is recalling certain model year 2007-2011 Honda CR-V, 2011-2015 CR-Z, 2010-2014 FCX, and Insight, 2009-2013 Fit, 2013-2014 Fit EV, 2007-2014 Ridgeline, 2013-2016 Acura ILX, 2013-2014 Acura ILX Hybrid, 2007-2016 RDX, 2005-2012 Acura RL, 2009-2014 Acura TL, and 2010-2013 Acura ZDX vehicles. The affected vehicles are equipped with a dual-stage driver frontal air bag that may be susceptible to moisture intrusion which, over time, could cause the inflator to rupture.

Consequence & remedy

Consequence: In the event of a crash necessitating deployment of the driver's frontal air bag, the inflator could rupture with metal fragments striking the driver or other occupants resulting in serious injury or death.

Remedy: Honda will notify owners, and dealers will replace the inflator, free of charge. The recall began March 2017. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are JY0, JY1, and JY2.

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.