2013 Acura TSX

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.

ABS / VSA module failed at 90k miles causing spongy brakes. Acura quoted me $3500 for a new module which is more than the value of the car.

NHTSA ID

11740546

Incident

Apr 16, 2025

The airbags did not deploy when I got in the front end accident

NHTSA ID

11665393

Incident

May 25, 2025

Power steering electronic module went out and can’t find any replacements. Other models as the same as mine have been recalled.

NHTSA ID

11589300

Incident

May 4, 2024

I first reported this on July 7, 2023 under NHTSA ID#11530893. My wife was driving when the Continental tire size 225/50/R17 suddenly blew out at approximately 70 MPH. Immediately pulled to shoulder of highway. This was a very tense moment at speed running on the rim to get immediately off the road. Fortunately there was no vehicles in neighboring lanes as we swerved and got out of harms way. Continental Tire dealer was contacted and shown the 2 pieces of separated tire. We were informed there is an open recall for tread separating from side wall of Continental Tires. Also informed that my DOT Tire identifier was not listed under the recall. No recourse was taken/offered by Continental dealer.

NHTSA ID

11549575

Incident

Jul 4, 2023

The contact owns a 2013 Acura TSX equipped with Continental Tires, Tire Line: Pure Contact, Tire Size: 225/50/R17, DOT Number: VY40WD4A2320. The contact stated that while his wife was driving at an undisclosed speed, the front driver's side tire exploded. The vehicle was taken to the dealer; however, the dealer was unable to determine the cause of the failure. The manufacturer was made aware of the failure. The tires were replacement tires. The failure mileage was approximately 126,500.

NHTSA ID

11530893

Incident

Jul 4, 2023

Mileage

126,500 mi

I purchased my 2013 Acura TSX new. Since the date of purchase I have had the battery replaced 4 times including yesterday. On each occasion, the battery was drained due to the Bluetooth Module being defective. The dealer has confirmed the problem. This poses a substantial safety risk

NHTSA ID

11527416

Incident

Jun 15, 2023

After the harness is clipped in place and tightened as directed, you can pull the straps forward (including my 3yo child was able to do this) and loosen the straps of the harness without pressing on the release button. The harness pulls loose and will not stay locked in place. I also tried to simulate impact with a sudden and strong pull on the harness to see if it would lock in that situation and it does not. If we had been in an accident using this car seat, my child could have been seriously injured because the harness would have failed to lock. We purchased this in Sept 2019 and just noticed this occurring now but unclear if we just didn't realize it before or if the harness just failed now.

NHTSA ID

11470163

Incident

Jun 20, 2022

On Friday, September 24, 2021 when I went around a curve my car felt like the vehicle stability assist was trying to kick on. However, no warning light came on and I was not going to fast for the weather or road conditions. I did not hit any pot holes or anything else to cause the part to fail. When I went to apply my brakes the brakes felt soft and spongy and I was concern with the car not stopping. Safety issues for me and others were if my car didn't stop and me hitting another vehicle and injuring/killing them or myself due to the component failure. I was able to get my car to Acura Sterling McCall in Houston and they were able to duplicate the issue and I was advised the VSA needed to be replaced. That this was causing the soft brakes.

NHTSA ID

11434458

Incident

Sep 24, 2021

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.

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.

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.

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 front passenger's airbag inflator only.