2012 Toyota Tacoma

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.

- Driver’s seat back recliner mechanism / seatback locking mechanism. During a rear-end interstate collision while stopped in traffic, the driver’s seat suddenly reclined backward unexpectedly. After the accident, the recliner adjustment knob/handle was found detached at the tow yard. The vehicle is currently at a tow/salvage yard and may be available for inspection upon request. - Because the seat reclined unexpectedly during impact, the driver’s body position changed suddenly and the front airbag did not appear to make protective contact. The driver briefly lost consciousness and is experiencing significant neck stiffness and pain following the crash. The seat movement may have reduced the effectiveness of the airbag and seatbelt system and increased risk of head and neck injury. - No. The vehicle has not been evaluated by a dealer or independent service center at this time due to collision damage. - The vehicle has been inspected by police at the accident scene and is pending inspection by insurance. The seat mechanism has not yet been specifically evaluated by the manufacturer. - No warning lights, messages, or prior symptoms related to the seat or restraint system were observed before the accident.

NHTSA ID

11714538

Incident

Jan 28, 2026

Odometer Fraud. The contact purchased a 2012 Toyota Tacoma. It was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 51,350 and at the time of registration, it was discovered that the mileage was 212,400. The VIN was not available

NHTSA ID

11712767

Incident

Oct 4, 2025

Mileage

212,400 mi

The contact owns a 2012 Toyota Tacoma. The contact stated that while driving at 35-40 MPH, coming up on fog, the driver, attempting to slow down, traveled over a slush patch in the roadway, and an approaching vehicle was in view. She lost control of the vehicle, spun around, and went face-first into a ditch, and the vehicle flipped and rolled over onto the hood. There were no warning lights illuminated. The contact stated that she sustained a concussion, hematoma, and pain on the left side of her neck and head, and the next day, there was pain on the right side of her neck and shoulder. She was taken by ambulance to the hospital, where medical attention was provided. The side curtain on the driver's and passenger's sides deployed. The front airbags failed to deploy. The vehicle was towed to an independent auto center. There was no reported fire. A police report was filed. Previously, while turning around in a parking lot, the contact crashed into a cement barrier. The airbags did not deploy. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The failure mileage was approximately 240,000.

NHTSA ID

11710917

Incident

Jan 12, 2026

Mileage

240,000 mi

The contact owns a 2012 Toyota Tacoma. The contact stated that the undercarriage of the vehicle was significantly rusted. The TPMS warning light was illuminated. The vehicle was taken to the local dealer, where it was repaired under the warranty; however, the failure recurred. The dealer informed the contact that the rear bumper and brackets were rusted, and there was no recall or warranty coverage. The contact stated upon pulling into the driveway of the residence, the contact noticed a trail of fluid leak on the street. The contact stated that the transmission lines were fractured due to rust. The vehicle was taken to an independent mechanic, where the contact was informed that the vehicle was significantly rusted. The vehicle was not repaired. The manufacturer was contacted and a case was filed. The failure mileage was approximately 71,000.

NHTSA ID

11677221

Incident

Oct 21, 2021

Mileage

71,000 mi

My leaf spring(s) is noisy/loosened and to the best of my limited knowledge is at risk for breaking off and puncturing the fuel tank per repair shops. This issue is not covered under Safety Recall E02 (E12) by Toyota for the model year 2012 Tacoma. As a consumer, I don't understand the determination of when the recall is cut off for specific model years. I would like for NHTSA and Toyota to analyze this issue as the model year 2012 Tacoma could be at risk. I have case with Toyota Customer Resolutions that has been closed. Thanks for your attention into this matter.

NHTSA ID

11664317

Incident

Feb 1, 2025

While driving on the road truck locks up occassionally in a curve. i know of mulitple trucks its happening to and only in curves- will end up hurting someone if a fix for it isnt found - no one seems to know what is going on

NHTSA ID

11662570

Incident

May 21, 2025

The contact owned a 2012 Toyota Tacoma. The contact stated that while his son was driving 40 MPH, the rear driver-side wheel rim detached. The traction control and ABS warning lights were illuminated. The vehicle veered to the right, accelerated independently, and went up the embankment, hit a tree, and accelerated independently down the embankment when the vehicle flipped on the passenger side, where it came to a stop.  The driver-side and passenger-side air bags deployed, and the side curtain air bags deployed. A police report was not filed. There were no injuries sustained. The vehicle was towed to an independent mechanic but was not diagnosed or repaired. The insurance company was contacted, and pending results. The manufacturer was not made aware of the failure. The failure mileage was unknown. The VIN was not available.

NHTSA ID

11661159

Incident

May 13, 2025

My truck started having a vibration when driving around 45-55 mph. This problem first became noticeable when it had about 115,000 miles on it. Over time the speed that the vibration became noticeable at gradually increased. By 125,000 miles on the truck, it was vibrating hard between 60 and 70 mph. The dealership determined that the problem was that the drive shaft was out of balance and that it had to be replaced. They replaced the drive shaft, but this doesn't seem like a problem that should creep up with that relatively few miles on the vehicle, and I have read that if the drive shaft actually fails, it can severely damage the vehicle and potentially cause injury.

NHTSA ID

11632871

Incident

Sep 18, 2023

Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Service Bulletin is to provide general guidelines and procedures for odor remediation. This Service Bulletin provides a guide on how to prepare and treat the interior of the vehicle for odor remediation. Refer to the applicable model and model year Repair Manual and the EPA (Environmental Protection Agency) website for the most up-to-date safety and precautionary guidelines.

Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal areas such as the hood, roof, and decklid, significant damage to the painted surfaces can occur. Acid rain damage can typically be identified on vehicles by the presence of stains on the paint surface that resemble hard water spots. Unlike water spots however, acid rain damage cannot be removed by regular washing procedures. Also, because acid rain can etch and soften the paint, normal buffing or polishing repair procedures should not be attempted. This can cause further damage and result in visible depressions in the paint surface. The following are the three major categories of acid rain damage: •Minor damage: requires only buffing to repair. •Moderate damage: usually requires neutralizing, color sanding, and buffing. •Severe damage: extending beyond 1/2 mil of clearcoat on a pearl, metallic, or solid color, requires neutralization, sanding, and repainting. In cases where acid rain damage is minor, neutralization and buffing with a liquid-type paint finessing product may provide an adequate repair. Only specially formulated products outlined in this bulletin should be used for that purpose. Unfortunately, other than minor damage, there is no simple method of determining the actual extent (depth) of acid penetration other than color sanding a representative affected area until there is no visible etching or depressions, followed by measuring the amount of paint removed with either a magnetic or digital-type film thickness gauge. The procedures in this bulletin are intended for use by qualified body/paint technicians and should not be attempted by inexperienced personnel. It is the dealer’s responsibility to protect and maintain the quality of the vehicle’s paint finish after receipt at the dealership prior to the first sale. Perform frequent vehicle washing, as often as daily, during high heat and humidity periods to minimize the potential for paint damage due to acid rain exposure. This is especially important in geographical areas known for high frequency and concentration of acid rain and industrial fallout.

The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicle surface, especially the horizonal areas of the hood, roof, and decklid, significant damage can occur. This damage is the result of actual etching of the paint and appears as pitting or water spots. As acid rain droplets on the vehicle surface evaporate, the concentration strength of the acid increases, causing deeper and more rapid damage. This evaporation and corrosive action also occur more rapidly on dark colored cars as direct sun heat increases. It is the dealer’s responsibility to protect and maintain the quality of the vehicle’s paint finish after receipt at the dealership prior to the first sale. In areas known for high frequency and/or concentration of acid rain, frequent vehicle washing during high heat or humidity periods will minimize the potential for paint damage caused by acid rain. It is further recommended that either reverse osmosis or deionized water be used to prevent water spotting.

To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from weather elements and initial rust before the vehicle is delivered to the customer. Consequently, the film should remain on the wheel for as long as possible.

Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental fallout, and rail contamination. Follow the Removal Procedure in this bulletin to remove the RapgardTM protective film within 90 days from initial application.

Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can be identified by the presence of small, red or brown particles on the paint surface. These particles are often difficult to see on dark color paints but can be easily felt when brushing a hand across horizontal body surfaces such as the hood, roof, or deck lid. Follow the Repair Procedure in this bulletin to clean vehicles that may have been subjected to contamination by airborne iron particles such as rail dust during rail transportation or extended storage near industrial areas.