2012 Acura TL

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.

The vehicle has a faulty Hands free link module which runs the battery down when the vehicle is not in use. Acura has been aware of this problem since 2005. The government of this sorry ass country has done nothing about this issue except sit on their hands and accept payoffs from Acura. Acura dealers refuse to call back when this issue is mentioned. This results in money being paid for unnecessary repairs for batteries, alternators, and testing Just think if you were a handicap person who had to rely on your vehicle for medical services on a weekly basis and every time you went to your vehicle it would not start because of this issue that has been unresolved by Acura since 2005.What a national disgrace.

NHTSA ID

11719596

Incident

Oct 9, 2023

Airbag light came on and remained

NHTSA ID

11694672

Incident

Oct 21, 2025

Driving down the highway with my sun shade open but the actual sunroof closed and all of a sudden I just hear a loud pop and glass is all over my head and thighs. The sunroof shattered leaving me with glasses everywhere. No rock was in the sunroof when I was vacuuming the remaining parts of glass.

NHTSA ID

11671903

Incident

Jul 7, 2025

They changed the originality milleage of the car and sold it too expensive

NHTSA ID

11666017

Incident

Mar 25, 2025

Immobilizer unit (recognizes/reads chip in key fob) failure led to the car shutting off the fuel pump leading to the car shutting down. The car could not be started again leaving the driver stranded by the side of the road. Vehicle had to be towed to an Acura dealer since the electronic immobilizer unit cannot be replaced/programmed by non Acura dealers. Car has been sitting at Acura since the end of December 2024 waiting on parts.

NHTSA ID

11644200

Incident

Dec 13, 2024

Driving on the freeway on a particularly warm day in California with the sunroof tilted up. Heard a explosion and glass fell on top of me and my family. We pulled over to see what had happened because we didn't see any objects flying at us. Upon inspection of the vehicle we noticed that the sunroof had imploded. The glass didn't shatter all the way it looked as if something had been thrown from inside up and out of the sunroof window. A hole was blown out of it. I believe the panoramic shape of the window causes there to be a weak point in the center. Given that weak point and the weather that day it was hot outside and the sunroof was tilted upright the wind coming into the car from the sunroof and probably exiting as well may have caused a reaction between the hot weather and the cool air and imploded the window from inside the car out.

NHTSA ID

11636990

Incident

Jul 5, 2022

On 4/28/2023 per Balcones Heights Police officer Ford and Officer [XXX] there is an issue with the license plate light. The light has been replaced twice, to avoid traffic stops. Police continue to cite the issue of No License plate light. There are not any warning lights on the dash board only cited by law enforcement. On 12/19/2020 Officer [XXX] with Guadelupe Sheriffs Officer issued a warning. The warning cited No License Plate Light. I took photos of the license plate light and took had the vehicle inspected by the Acura dealership. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

NHTSA ID

11520345

Incident

Apr 28, 2023

In an auto collision where a car rear end the vehicle from an idle position into an 18-foot box truck in front which was also idle. The vehicle smashed in the front and back which it was deemed a total loss and the airbag did not deploy. This caused the driver to have several injuries including a head concussion. When contacted the dealer service department where recall maintenance had been performed, I was instructed to contact the airbag manufacturer. The vehicle inspected by insurance adjuster (GEICO). There were no warning lamps or messages prior to the failure of the airbag deploy.

NHTSA ID

11477341

Incident

Jul 25, 2022

Service Bulletin - Warranty Extension: Customer Support Program For Driver's Airbag Inflator for 2013-14 ILX Hybrid and Other Listed Years and Models.

Service bulletin - This bulletin is a notification of a class action settlement relating to airbag inflators. American Honda is offering a Customer Support Program (Warranty Extension) to cover any manufacturing defects in the replacement driver's airbag inflator only.

Service Bulletin - This bulletin is a notification of a class action settlement relating to airbag inflators. American Honda is offering a Customer Support Program (Warranty Extension) to cover any manufacturing defects in the replacement driver's airbag inflator only.

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2009-2014 TLs, TSXs & TSX Wagons with a client complaint of the brake pedal feeling soft or spongy when depressed, almost reaching the floor. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2009-2014 TLs, TSXs & TSX Wagons with a client complaint of the brake pedal feeling soft or spongy when depressed, almost reaching the floor. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.

ServiceNews Article - Do you have a slow tire leak, but there are no signs of sidewall damage or anything stuck in the tread? While you're checking for leaks, check the valve stem; it could have oxidation buildup from road salt. This buildup can cause a poor seal, resulting in a slow leak.