2013 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.

On Monday, July 27, 2026, my vehicle suffered a complete failure of the EPS system at startup in my garage, making the steering wheel lock and rendering the vehicle completely non-operational. The vehicle did start and would go into gear but there was a severe increase in steering effort, creating an emergency situation and an extreme safety hazard on public roads if it was driven. The vehicle was towed to an independent automotive repair facility where a certified technician performed a diagnostic scan and isolated the failure to the Electric Power Steering (EPS) control unit. The independent shop verified that my vehicle’s VIN is covered under American Honda/Acura's active 15-year/unlimited-mile warranty extension for Service Bulletin 19-021, which was issued specifically to address a known manufacturing defect involving internal EPS relay wire fatigue. The vehicle was subsequently towed to Metro Acura for the warranty repair. Because the manufacturing defect is inherently intermittent, the EPS system temporarily self-recovered due to ignition cycling and physical vibrations during flatbed transit. Metro Acura and American Honda are currently denying warranty coverage and refusing to replace the defective EPS unit, stating they cannot honor the warranty extension unless they can actively duplicate the failure on-site or pull a live code themselves. By refusing to honor the safety warranty extension and ignoring a documented professional diagnosis of a known, intermittent component fracture, the manufacturer and dealer are forcing me to retrieve and operate a vehicle with a volatile, un-repaired steering defect. This poses an ongoing, severe risk of sudden steering loss to myself, my passengers, and other motorists. I request that NHTSA investigate American Honda’s practice of denying coverage for this critical, intermittent safety defect.

NHTSA ID

11753600

Incident

Jul 26, 2026

I am writing to formally report a significant paint defect on my 2013 Acura TL. Large sections of the clear coat are peeling off the vehicle and the issue continues to spread. The vehicle has been well maintained and regularly washed. This issue is not only unsightly and damaging to the vehicle’s resale value, but it may also lead to more serious deterioration of the exterior over time, including rust or corrosion. After researching online, I discovered that this appears to be a widespread issue affecting numerous Acura and Honda vehicles from similar model years. I am requesting that Acura take responsibility for this clear coat failure and offer a paint repair or reimbursement under a goodwill or extended warranty program. I would also appreciate confirmation as to whether there are any technical service bulletins (TSBs) or extended paint warranties related to this issue.

NHTSA ID

11653529

Incident

Apr 8, 2025

The 2013 Acura TL has a problem with the pistons in the engine causing excessive oil consumption. This was the subject matter of a class action described in the website Acura Oil Consumption Settlement. This part should be recalled and American Honda should be required to repair or replace the pistons in the engine.

NHTSA ID

11523751

Incident

May 5, 2023

The airbag warning indicator keeps appearing. When message is pressed it says that airbag may not deploy when needed. States to turn car off and restart to see if indicator disappears- if reappear take to dealership to inspect

NHTSA ID

11450853

Incident

Oct 9, 2021

The contact owns a 2013 Acura TL. The contact stated that while the vehicle was parked and running, he heard abnormal rattling sounds coming from the hood of the vehicle. The check engine warning light was illuminated. The contact was able to drive the vehicle; however, the failure persisted. The vehicle was taken to the dealer who diagnosed that the serpentine belt had failed and needed to be replaced. The contact stated that the failure had been reoccurring while driving. The contact stated that he contacted the manufacturer but was unable to reach a representative. The vehicle was not repaired. The failure mileage was approximately 150,000.

NHTSA ID

11446949

Incident

Dec 24, 2021

Mileage

150,000 mi

I was driving my 2013 Acura Tl on my way to work and suddenly I got an electronic power steering error that resulted in my steering wheel stiff and I had to use all my strength to pull over to the emergency lane. The vehicle's steering became very heavy and was very hard to turn. I am fortunate not to be in an accident when it occurred. There is so many people with Acura TL having this issue and Acura need to do something about it.

NHTSA ID

11444909

Incident

Dec 24, 2021

The airbag warning indicator keeps appearing. When message is pressed it says that airbag may not deploy when needed. States to turn car off and restart to see if indicator disappears- if reappear take to dealership to inspect.

NHTSA ID

11444788

Incident

Dec 21, 2021

WHILE CROSSING MEDIAN AHEAD OF ONCOMING TRAFFIC, ELECTRIC POWER STEERING LOST POWER, LEAVING ME UNABLE TO STEER TO AVOID COLLISION. STEERING WARNING BEGAN TO FLASH BUT GAVE NO ADVANCE WARNING. I WAS NOT STRONG ENOUGH TO STEER THE CAR. ENGINE WAS RUNNING. CAR IS AVAILABLE FOR INSPECTION. HONDA DEALER SAID THEY HAD NEVER SEEN THIS PROBLEM. POWER STEERING IS STILL INOPERATIVE AND THE DEALER SAYS NO RECALLS FOR T HIS PROBLEM.

NHTSA ID

11432045

Incident

Aug 25, 2021

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.