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2017 TOYOTA TACOMA — Complaint #1849020

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NHTSA Complaint about ELECTRICAL SYSTEM:SEAT HEATER:WIRING HARNESS filed October 21, 2022

NHTSA complaint #1849020 (ODI reference 11490333) concerns a 2017 TOYOTA TACOMA and was filed on October 21, 2022. The owner reports the failure occurred on April 1, 2022. The vehicle had 40,000 miles on the odometer at the time of the incident. The report was geocoded to Ohio based on the filer's self-reported location. The affected component is categorized as electrical system:seat heater:wiring harness, one of NHTSA's standardized taxonomy codes used to group defect patterns across make, model, and year.

The filer flagged the following severity indicators: crash: no, fire: no, injuries: 0, fatalities: 0. No crash, fire, or fatality was associated with this report, which places it in the early-warning stream rather than the priority-review stream. Because a VIN was supplied, this complaint is tied to a specific vehicle and not just a model-year cohort.

Individual complaints are consumer-submitted and unverified by NHTSA engineers — the agency's role at this stage is to collect, index, and make them searchable. What matters for federal action is the pattern: when many owners of the same TOYOTA TACOMA cohort independently describe similar electrical system:seat heater:wiring harness failures, defect investigators have grounds to open a PE and request manufacturer data. Related filings for the same vehicle and component appear below, and the detail page for the full 2017 TOYOTA TACOMA shows the complete component-level complaint distribution alongside any active investigations or recalls.

Vehicle
2017 TOYOTA TACOMA
Component
ELECTRICAL SYSTEM:SEAT HEATER:WIRING HARNESS
State
Ohio
Mileage
40,000 mi

Complaint Description

The contact owns a 2017 Toyota Tacoma. The contact stated that while driving or idled, the front driver’s side seat heater failed to operate. The contact then stated that he smelled a burning odor and upon inspecting the seat, he noticed burned and charred marks on the amp and wiring harness. No warning lights was illuminated. The vehicle was taken to the dealer where an electrical diagnostic was performed. The contact was informed by the dealer that the front driver’s side heated seat amp assembly and the wiring harness had melted and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was informed that the vehicle is out of warranty, but no further assistance was provided. The failure mileage was approximately 40,000.

Complaint Details

NHTSA Complaint ID 1849020
ODI Number 11490333
Date Filed October 21, 2022
Failure Date April 1, 2022
VIN 3TMCZ5AN9HM

Source: NHTSA Vehicle Complaints Database. Component taxonomy and severity codes are standardized by NHTSA Office of Defects Investigation.