NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
71 reports210,034 miles · Apr 5, 2024
Engine And Engine Cooling
The contact owns a 2017 Acura TLX. The contact stated while driving at 65 MPH, there was a loud clanking noise coming from the engine. In addition, the check engine warning light illuminated. The contact pulled over to the side of the road and turned off the vehicle immediately. The vehicle was towed to the dealer where it was d…
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The contact owns a 2017 Acura TLX. The contact stated while driving at 65 MPH, there was a loud clanking noise coming from the engine. In addition, the check engine warning light illuminated. The contact pulled over to the side of the road and turned off the vehicle immediately. The vehicle was towed to the dealer where it was diagnosed that the engine needed to be replaced. The vehicle was repaired however the contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling). The manufacturer was notified of the failure and a case was opened. The failure mileage was approximately 210,034. The VIN was not available.
NHTSA ODI #11581301
Mileage unknown · Mar 6, 2024
EngineFuel/propulsion SystemUnknown Or Other
My car’s lights were on. I went to Acura to get a diagnostic and they said to replace the fuel pump. I replaced it, and the lights came back on. I got another diagnostic and I was told the fuel pump has a leak. I have an 2017 Acura TLX that was not apart of the recent recall which I believe it should have been because my car is …
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My car’s lights were on. I went to Acura to get a diagnostic and they said to replace the fuel pump. I replaced it, and the lights came back on. I got another diagnostic and I was told the fuel pump has a leak. I have an 2017 Acura TLX that was not apart of the recent recall which I believe it should have been because my car is slow to steer which may cause an accident.
NHTSA ODI #11575772
35,000 miles · Feb 5, 2024
Engine And Engine Cooling
The contact owns a 2017 Acura TLX. The contact stated while the vehicle was idling, there was an abnormal sound coming from the engine. The vehicle was taken the dealer, where the timing belt, unknown bolts, and parts were replaced. Additionally, the contact stated that while attempting to start the vehicle, several unknown warn…
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The contact owns a 2017 Acura TLX. The contact stated while the vehicle was idling, there was an abnormal sound coming from the engine. The vehicle was taken the dealer, where the timing belt, unknown bolts, and parts were replaced. Additionally, the contact stated that while attempting to start the vehicle, several unknown warning lights were illuminated, but the engine failed to turn over. The contact jumpstarted the vehicle, and the vehicle was taken to another dealer, Ball Acura 2001 (National City Blvd, National City, CA 91950), where the battery was replaced. The contact received notification of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling) however, the part to do the recall repair was not yet available. The contact stated while the vehicle was idling on another occasion, there was an abnormal sound coming from the engine. There was no warning light illuminated. The local dealer was contacted. The vehicle was not repaired. 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 failure. The failure mileage was approximately 35,000. VIN tool confirms parts not available.
NHTSA ODI #11570127
61,000 miles · Dec 27, 2023
Suspension
The contact owns a 2017 Acura TLX. The contact stated that while driving at various speeds, there was a loud revving sound was coming from the engine compartment. The vehicle was taken to the local dealer and diagnosed. The contact was informed that the front wheel bearings and wheel sensors were faulty and needed to be replaced…
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The contact owns a 2017 Acura TLX. The contact stated that while driving at various speeds, there was a loud revving sound was coming from the engine compartment. The vehicle was taken to the local dealer and diagnosed. The contact was informed that the front wheel bearings and wheel sensors were faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer and local dealer were notified of the failure. The failure mileage was 61,000.
NHTSA ODI #11561988
Mileage unknown · Dec 6, 2023
EngineFire
On May 26, 2023, I purchased my 2017 Acura TLX from Sterling McCall Acura Houston, TX. On July 16th, my son was driving the Acura TLX and the engine burst into a fire. After the engine fire, I had to replace the entire. On November 20, 2023, after reading an article and contacting American Honda ( [XXX] ) I became aware of a …
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On May 26, 2023, I purchased my 2017 Acura TLX from Sterling McCall Acura Houston, TX. On July 16th, my son was driving the Acura TLX and the engine burst into a fire. After the engine fire, I had to replace the entire. On November 20, 2023, after reading an article and contacting American Honda ( [XXX] ) I became aware of a recall on my Acura TLX. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ODI #11558757
Mileage unknown · Nov 25, 2023
Engine
VEHICLE STALLED TWICE IN THE PAST 2 MONTHS AT THE TRAFFIC LIGHT. NO ACCIDENT OCCURRED BUT CAUSED TRAFFIC. THE CAR HAS BEEN MAINTAINED EXCEPTIONALLY WELL.
NHTSA ODI #11556750
Mileage unknown · Jun 2, 2023
Fuel/propulsion SystemService Brakes
Acura TLX TECH showing "Check Engine", "Break" and Warning sign on the dashboard. Vehicle was taken to Acura Dealer at East Brunswick on 08/29/2022. They inspected the car and advised that the issue with "Pipe Kit, Fuel Filler Part #06160-TZ3-A11". The part was ordered by the dealer up on my request with a comment that part is b…
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Acura TLX TECH showing "Check Engine", "Break" and Warning sign on the dashboard. Vehicle was taken to Acura Dealer at East Brunswick on 08/29/2022. They inspected the car and advised that the issue with "Pipe Kit, Fuel Filler Part #06160-TZ3-A11". The part was ordered by the dealer up on my request with a comment that part is back ordered and no firm expected time per Acura corporate and advised that I shall look for part from other dealers as well. I was advised that vehicle is drivable. As a fallback I ordered part from OEM Acura Parts on 08/30/2022 and got the same message from them as well that its back ordered. Upon several follow ups and calls still part is unavailable and car is not fixed. Dealer advised in April 2023 that I shall call Acura corporate to determine the expected arrival and I open a case with Acura Corporate with Case ID: 13772219 and had follow up call with customer services on 04/21/2023 and 4/28/2023. Finally got a call back from Case Manager Chris on 05/01/2023 and he said "No definitive ETA, Part not available. What best he can do is to send period update via email and call when part is available." I am in the state of New Jersey and vehicle inspections are mandatory, My car inspection is due soon and in case car is not fixed, then there is no way vehicle will pass inspection and I will be forced NOT to drive the car.
NHTSA ODI #11524975
Mileage unknown · Apr 12, 2023
Unknown Or Other
UNKNOWN- I was on the Interstate coming from work when I heard a loud BOOM sound. Then I heard wind. I got to where I could pull over and saw nothing. I looked at my sunroof and it was completely shattered. Just out the blue. Thankfully my sunroof was closed and my shade was pulled or I would have been seriously injured or worse…
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UNKNOWN- I was on the Interstate coming from work when I heard a loud BOOM sound. Then I heard wind. I got to where I could pull over and saw nothing. I looked at my sunroof and it was completely shattered. Just out the blue. Thankfully my sunroof was closed and my shade was pulled or I would have been seriously injured or worse.
NHTSA ODI #11516790
Mileage unknown · Feb 5, 2023
Power Train
I was driving on highway 3 weeks ago and all of a sudden my car shifted into neutral on its own and would not let me select any gears. Luckily I was safely able to pull over to the shoulder without getting rear ended. Once I powered off the car and restarted, it let me select "D" drive gear again and behaved normally. I contacte…
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I was driving on highway 3 weeks ago and all of a sudden my car shifted into neutral on its own and would not let me select any gears. Luckily I was safely able to pull over to the shoulder without getting rear ended. Once I powered off the car and restarted, it let me select "D" drive gear again and behaved normally. I contacted Acura dealer and they said it is a software issue and Acura is aware of it and no fix is available at this time. Then it happened again 3 days ago while I was turning into a parking lot and this time I took it to dealer service department. They checked but could do nothing about it other than clean gear selector push buttons which does not solve the issue. My car has had all recommended maintenance including transmission fluid change done about 5000 miles ago. This is an extremely serious issue and could have resulted in major accident on highway resulting in injuries or death.
NHTSA ODI #11505647
Mileage unknown · Dec 14, 2022
Unknown Or Other
Every time I took my car in for State emissions test computer at facility said car could came back saying “not ready”. Took it 5 times and it always said same result. Took it to dealer and they said they’ve seen this before but don’t know what caused it. They said the only was to resolve it was for Acura mechanic to take car to …
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Every time I took my car in for State emissions test computer at facility said car could came back saying “not ready”. Took it 5 times and it always said same result. Took it to dealer and they said they’ve seen this before but don’t know what caused it. They said the only was to resolve it was for Acura mechanic to take car to testing facility while his laptop was hooked up to cat computer, to “trick” testing facility into allowing cat to pass EPA test. Car was still under warranty at this time and had 60,000 miles on it. Car passed tested dealer charged me $400 and said it was not covered under warranty because they could not find a code for the problem. Acura mechanic said he has seen this on other Acura TLXs…
NHTSA ODI #11497380
Official recalls
3Dec 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.
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.
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
2EA25004 · 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.