2018 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.

Clear coat is failing. Roof is starting to oxidize, hood and all doors and truck bed are beginning the same process that started on the roof. Cosmetic issue. Problem was reported to Toyota costumer support program. Manufacturer refused to report and confirm, was given 1800 number, independent service center confirmed issue. Failure first appeared 1 month ago, has quickly spread to full vehicle.

NHTSA ID

11774702

Incident

Sep 20, 2026

I have been having issues with an intermittent rain smell in my vehicle for the past few months not realizing the smell was due to water intrusion in the cabin of my truck. I own a 2018 Toyota Tacoma. As of recently the situation has been getting exceedingly worse due to stormy and rainy weather during the month of September. At this point I noticed the floor throughout my whole cabin was flooded with water. I was sure my windows were not open and my doors were closed and sealed properly. I took the vehicle to the Honda dealership and they provided me a Condition, Cause and Remedy (CCR). The CCR stated that water was entering my vehicle through the cabin vents located between my truck bed and the cabin of the vehicle. These cabin vents do not have any maintenance plan surrounding them, the seals are also not accessible or visible without complete removal of the back end of the truck. This is a manufacturer design issue and Toyota needs to warn their consumers to correct. Also because water intrudes in the vehicle it builds up moisture on the drivers windshield so you cannot see when driving early in the morning. The defroster does not help reduce visibility enough while driving. I was quoted a repair cost of $4500 by the Toyota dealership to fix. There is now mold growing through the only vehicle I own. I reached out to Toyota customer service to help get this resolved. It’s been over a week and they closed my case without providing any assistance or solution despite acknowledging the design issue. This is a common issue with Gen 3 Tacomas and driving with mold growing in your vehicle is NOT safe. I will follow up with my doctor to see if this problem is contributing to some of the current health issues I am experiencing.

NHTSA ID

11770902

Incident

Sep 30, 2026

Cab air vents behind rear seat leaks causing mold to form under carpet.

NHTSA ID

11769891

Incident

Aug 5, 2026

2018 Toyota Tacoma SR 4WD Double Cab, 3.5L V6 (2GR-FKS). At about 87,000 miles the check engine light came on with code P11EC, Cylinder 1 Air-Fuel Ratio Imbalance (Port). Cylinder 1 failed compression. Leakdown and coolant tests had passed earlier; borescope did not show heavy scoring. The Toyota dealer said replacing the direct injectors would fix compression (quote about $4,499). After the dealer injector repair, cylinder 1 was still 124 psi (spec about 142-180 psi), so it did not fix compression. The dealer then quoted $11,778 for a short block (+$500 incidentals) and $14,238 for an engine assembly that was not new (about 45,000 miles on the replacement discussed); adding injectors again put the short-block path at about $16,278. I was steered toward buying a new truck and had the injector work reversed because it did not fix what they said it would. Toyota Brand Engagement Center reviewed the case, called the dealer, took VINs for other Toyotas, and denied goodwill; no recall or TSB. An independent shop later pulled the engine and found the cylinder 1 exhaust valves leaking badly; cylinder wall still looked good. Machine shop valve job, new rings, injectors tested (two bad), all six replaced; repair about $8,000. Truck runs normally after. Consequences: loss of power, failed emissions monitors, risk of further engine damage if driven, high repair cost. Not a crash. This appears to be a known pattern on the 2GR-FKS in 2016-2019 Tacomas (P11EC, cylinder 1, leaking/burnt exhaust valves, often after direct-injector washdown). Toyota has not recalled; dealers stop at injectors or quote a short block/used engine, and owners pay out of warranty. Please log this under 2018 Toyota Tacoma: engine, fuel system, and valve train (cylinder head/exhaust valves, fuel injectors), so the pattern is on record. Servicing dealer: Nashville Toyota North. Toyota Brand Engagement case 260521000967.

NHTSA ID

11769379

Incident

May 1, 2026

Rear cabin air vents not sealed properly from factory. Water leaks in and soaks interior carpet and gets moldy.

NHTSA ID

11766763

Incident

May 5, 2022

The contact owns a 2018 Toyota Tacoma. The contact stated that while driving 65 MPH, the brake pedal was depressed and went to the floorboard, and the vehicle continued moving forward. The vehicle was taken to the local dealer and was repaired under NHTS Campaign Number: 18V888000 (Service Brakes, Hydraulic); but the contact had evidence that the repair was not performed. There was an abnormal fuel odor inside and outside of the vehicle before the failure, which continued afterwards. The manufacturer was informed through brand engagement and customer care. The failure mileage was approximately 8,000.

NHTSA ID

11765873

Incident

Mar 1, 2019

Mileage

8,000 mi

I have a clear coat bubbling issue on my mirrors and also multiple clear coat stains on the hood that just developed on my Toyota Tacoma Off Road-Inferno Orange paint after two years that I own it. I called Toyota, there is no recall on my paint color, but I've viewed an online post someone has placed a lawsuit for the same reasons, but a different color. They've had a recall on white paint but not my color and I wanted to document the complaint. I called Toyota corporate and they said to file it with NTSB.

NHTSA ID

11765283

Incident

Sep 16, 2026

I own a 2018 Toyota Tacoma SR, manufactured 11/2017, with factory paint code 1G3 Magnetic Gray Metallic. The factory clear coat is experiencing extensive delamination/failure on the hood and roof. This isn't isolated stone damage or normal cosmetic wear. The clear coat is failing extensively across the horizontal panels. I'm aware Toyota has previously acknowledged clear-coat peeling on Tacoma vehicles through T-SB-0004-20 and Customer Support Program 20TE02, and that there are documented complaints involving 2018 Tacomas experiencing clear-coat failure on the hood and roof. I understand my VIN may not currently fall within those programs, but I'm requesting that Toyota inspect and document the condition and consider goodwill assistance toward repainting the affected factory-painted panels. I'd also like a Toyota case number assigned to the paint failure.

NHTSA ID

11762790

Incident

Sep 8, 2026

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.

Toyota has received some reports of paint peeling along the exterior door window frames, front inner fenders as can been seen with the hood open, and on the A-pillars on certain Tacoma vehicles with 040 Super White paint color. Although the vehicle paint is covered by Toyota’s New Vehicle Limited Warranty for three years, or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing coverage for repairs related to the conditions described above.

Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low.

TECHNICAL INSTRUCTIONS FOR CUSTOMER SUPPORT PROGRAM 23TE08 COVERAGE FOR PAINT PEELING ON EXTERIOR DOOR FRAMES, FRONT INNER FENDERS AND A-PILLARS CERTAIN 2016-2022 MODEL YEAR TACOMA

Toyota has received some reports of paint peeling along the exterior door window frames, front inner fenders as can been seen with the hood open, and on the A-pillars on certain Tacoma vehicles with 040 Super White paint color. Although the vehicle paint is covered by Toyota’s New Vehicle Limited Warranty for three years, or 36,000 miles (whichever comes first), we at Toyota care about the customers’ ownership experience. Toyota is providing coverage for repairs related to the conditions described above.

Customer Support Program 23TE08 Paint Repair Process Job Aid