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2016 Acura Tlx

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2016 Acura Tlx do not stand out strongly from the model-year median of 65.

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When problems were reported

Mileage at the reported incident

57 reports with mileage · 53 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 27 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 24 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 15 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

5 crash reports0 fire reports6 injury reports

What owners actually said

110 reports
136,141 miles · Nov 26, 2024
Engine And Engine Cooling

The contact owns a 2016 Acura TLX. The contact stated while starting at an undisclosed speed, there was an abnormal knocking sound coming from the engine. There was no warning light illuminated. Additionally, the contact stated that while her son was driving at an undisclosed speed, the vehicle lost motive power. There was no wa…

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The contact owns a 2016 Acura TLX. The contact stated while starting at an undisclosed speed, there was an abnormal knocking sound coming from the engine. There was no warning light illuminated. Additionally, the contact stated that while her son was driving at an undisclosed speed, the vehicle lost motive power. There was no warning illuminated. The vehicle was towed to an independent mechanic, where it was diagnosed that the engine had failed and needed to be replaced. The vehicle was not repaired. The vehicle was towed to the dealer, where the long block and the torque converter were replaced. The contact later received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling). The contact made the manufacturer aware of the failure and filed a claim for reimbursement; however, the claim was denied because the recall was related to engine Damage from Connecting Rod Bearing Wear. The approximate failure mileage was 136,141.

NHTSA ODI #11627514

Mileage unknown · Nov 14, 2024
Engine

The car would go in ACC mode while parked and running and warning lights would appear on the dash (pictured below). While parked and running, the car also accelerates up & down. I can visibly see the acceleration meter moving before the car goes into ACC. Also, while in the drive the car would go in neutral mode. I’ve called sev…

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The car would go in ACC mode while parked and running and warning lights would appear on the dash (pictured below). While parked and running, the car also accelerates up & down. I can visibly see the acceleration meter moving before the car goes into ACC. Also, while in the drive the car would go in neutral mode. I’ve called several dealerships and I have been put on a “waiting list” and have not heard back. At this point I’m scared for the safety of my children and 1. I have a 4 year old & currently 8 months pregnant. I’m not sure how to rectify this situation. It happens randomly but has been occurring more frequently.

NHTSA ODI #11625119

Mileage unknown · Oct 25, 2024
Engine And Engine Cooling

The contact owns a 2016 Acura TLX. The contact stated while attempting to start the vehicle, the vehicle was shaking abnormally. The check engine warning light was Illuminated. The vehicle was driven to an independent mechanic and was diagnosed with catalytic convertor failure. The vehicle was not repaired. The manufacturer was …

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The contact owns a 2016 Acura TLX. The contact stated while attempting to start the vehicle, the vehicle was shaking abnormally. The check engine warning light was Illuminated. The vehicle was driven to an independent mechanic and was diagnosed with catalytic convertor failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was unknown.

NHTSA ODI #11621983

Mileage unknown · Oct 18, 2024
Power Train

See attached document for complaint.

NHTSA ODI #11620572

Mileage unknown · Oct 18, 2024
Engine And Engine Cooling

The contact owns a 2016 Acura TLX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling) however, the dealer advised the contact that the vehicle could not be scheduled until July 2026. The contact stated that the dealer exceeded a reasonable amount of time for the recall repair. The m…

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The contact owns a 2016 Acura TLX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling) however, the dealer advised the contact that the vehicle could not be scheduled until July 2026. The contact stated that the dealer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

NHTSA ODI #11620516

Mileage unknown · Sep 30, 2024
Engine

The following complaint is in relation to NHTSA Safety Recall 23V-751 and the Acura Corporation's unwillingness to recompense the registered owner for catastrophic damages that occurred to the engine. The vehicle in question is a 2016 Acura TLX, and the recall applied to the Acura MDX, Honda Pilot, Honda Odyssey and Honda Ridgel…

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The following complaint is in relation to NHTSA Safety Recall 23V-751 and the Acura Corporation's unwillingness to recompense the registered owner for catastrophic damages that occurred to the engine. The vehicle in question is a 2016 Acura TLX, and the recall applied to the Acura MDX, Honda Pilot, Honda Odyssey and Honda Ridgeline. The manufacturing defect, which potentially involved 248,999 vehicles, was the connecting rod bearing of the crankshaft prematurely wearing and seizing. This is precisely what occurred to this TLX. The chronological events of this incident are quite revealing. On Jan 2023, midwinter, while driving on [XXX] near the Canadian border, the engine completely lost power, leaving the registered owner, XXX stranded on the interstate alone for 30 minutes. There were no warning lights, only a knocking sound originating from the engine. The vehicle was eventually towed to a nearby auto shop. The vehicle was not towed to an Acura or Honda dealership due to the extended distance, as XXX was employed at the US Port of Entry on the US/Canadian border, a remote location. The mechanics at the auto shop determined the entire engine needed to be replaced and repairs were completed on [XXX] and XXX paid $6,360.30 out of pocket. An effort to be compensated by Acura was denied. As of Nov 2023, Honda has 1450 claims. According 23V-751, Honda received its 1st complaint regarding this matter on Feb 2020 and investigated through Sept of 2023. Only until [XXX] did Honda decide to conduct a safety recall, well after the catastrophic failure of the aforementioned TLX which occurred on Jan 2023. And it was only until Jan 2024 that notification (24-002)of this defect was initiated. Again, Acura refuses to accept any responsibility or accountability for this incident, nor did it care to investigate the matter in its entirety, simply stating if the vehicle was not inspected by an Acura dealership (typical response), they are absolved of any wrongdoing. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION A

NHTSA ODI #11617364

Mileage unknown · Sep 27, 2024
Engine And Engine CoolingFuel System, Other

The contact owns a 2016 Acura TLX. The contact received notifications of NHTSA Campaign Numbers: 19V060000 (Fuel System, Other) and 23V751000 (Engine and Engine Cooling); however, the parts to do the recall repairs were not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a rea…

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The contact owns a 2016 Acura TLX. The contact received notifications of NHTSA Campaign Numbers: 19V060000 (Fuel System, Other) and 23V751000 (Engine and Engine Cooling); however, the parts to do the recall repairs were not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

NHTSA ODI #11616858

Mileage unknown · Sep 26, 2024
Engine And Engine Cooling

The contact owns a 2016 Acura TLX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the dealer informed the contact that she would be placed on a waiting list. The waiting list indicated that the vehicle would not be checked until mid-2025. The contact stated that the ma…

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The contact owns a 2016 Acura TLX. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the dealer informed the contact that she would be placed on a waiting list. The waiting list indicated that the vehicle would not be checked until mid-2025. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

NHTSA ODI #11616557

Mileage unknown · Aug 29, 2024
EngineForward Collision AvoidanceVehicle Speed Control

Transmission fails mid drive on freeway. Multiple vehicles had to avoid the possibility of horrific collision. Vehicle has lost engine power and will not exceed 60mph. I have. Check in with a Facebook Acura group and more the. 2,000 members had the same issue. All Acuras from 2016 to 2023 had failed transmissions at 10k miles to…

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Transmission fails mid drive on freeway. Multiple vehicles had to avoid the possibility of horrific collision. Vehicle has lost engine power and will not exceed 60mph. I have. Check in with a Facebook Acura group and more the. 2,000 members had the same issue. All Acuras from 2016 to 2023 had failed transmissions at 10k miles to 45k miles.

NHTSA ODI #11611498

Mileage unknown · Aug 14, 2024
Structure

A warranty extension for 2015 Acura TLX was issued for vehicles painted B-588P Obsidian Blue Pearl or Fathom Blue Pearl. I have a 2016 Acura TLX with exact same paint and identical peeling issue. My car was assembled in 2015 but is a model year 2016. Acura refused to fix.

NHTSA ODI #11608454

Official recalls

3

23V858000 · Fuel System, Gasoline:delivery:fuel Pump

Dec 18, 2023

Honda (American Honda Motor Co.) is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX, RLX, TLX, 2019-2022 Honda Insight, Passport, 2020 Honda CR-V Hybrid, 2018-2019 Honda Clarity PHEV, Fit, and 2015-2020 Honda Accord Hybrid, Pilot, Acura NSX vehicles. The fuel pump inside the fuel tank may fail.

Consequence & remedy

Consequence: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.

Remedy: Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are KGC and KGD. This recall is an expansion of NHTSA recall numbers 21V-215 and 20V-314.

23V751000 · Engine And Engine Cooling:engine:hard Parts Internal/mechanical

Nov 13, 2023

Honda (American Honda Motor Co.) is recalling certain 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2016 and 2018-2019 Pilot, 2017 and 2019 Ridgeline, and 2018-2019 Odyssey vehicles. Due to a manufacturing error, the connecting rod bearing in the engine may wear and seize, damaging the engine.

Consequence & remedy

Consequence: A damaged engine may run improperly or stall while driving, increasing the risk of a fire, crash, or injury.

Remedy: Dealers will inspect and repair, or replace the engine as necessary, free of charge. Owner letters were mailed March 28, 2024. 2016-2017 Acura MDX owner letters were mailed November 1, 2024. 2016-2020 Acura MDX owner letters are expected to be mailed in mid-December 2024. Honda began mailing owner notification letters as of March 18, 2024. 2015-2016 Acura owner letters are expected to be mailed mid-December 2024, 2018 Acura TLX owner letters are expected to be mailed the end of March/early April 2024, 2019 Acura TLX owner letters are expected to be mailed mid-May 2024, 2020 Acura TLX owner letters are expected to be mailed mid-June 2024, and 2016-2020 Acura MDX owner letters are expected to be mailed January 27, 2025. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls are XG1 and GG0.

19V060000 · Fuel System, Other:delivery:fuel Pump

Jan 29, 2019

Honda (American Honda Motor Co.) is recalling certain 2016-2018 Acura MDX, 2015-2019 Acura TLX and 2015-2017 Honda Accord vehicles, equipped with a 3.5L V6 engine. Particulates in fuel may adhere to the internal components of the fuel pump, reducing its performance.

Consequence & remedy

Consequence: Reduced fuel pump performance can result in an engine stall, increasing the risk of crash.

Remedy: Honda will notify owners, and dealers will update the fuel injection engine control unit (FI-ECU) software and, if necessary, replace the fuel pump, free of charge. The recall began March 25, 2019. Owners may contact customer service at 1-888-234-2138. Acura's recall number for this recall is P3W. Honda's recall number for this recall is N3X.

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

2

EA25004 · No Restart After Auto Start/stop Engages

Opened Mar 26, 2025 · No close date supplied

Status: open (inferred from source dates) · Engine And Engine Cooling:engine; Engine And Engine Cooling:engine:crank/camshaft Position Sensor; Engine And Engine Cooling:engine:engine Control Module (ecu/ecm):software; Engine And Engine Cooling:engine:hard Parts Internal/mechanical

On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

Additional source detail variants (4)

Engine And Engine Cooling:engine:crank/camshaft Position Sensor

On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

Engine And Engine Cooling:engine:engine Control Module (ecu/ecm):software

On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

Engine And Engine Cooling:engine:hard Parts Internal/mechanical

On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

Engine And Engine Cooling:engine

On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

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.