2019 Toyota Tacoma electrical system problems
21 owner complaints filed with NHTSA name the electrical system on the 2019 Toyota Tacoma — 10% of all complaints for this model year.
What owners report
“The contact owns a 2019 Toyota Tacoma. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the A/C, and the cool air setting was inoperative. No warning lights were illuminated. A vehicle was taken to a dealer to be diagnosed; however, the vehicle…”
filed Aug 18, 2026
“Water leaked through the third brake light assembly into the cab roof, soaking the ceiling, seats, and carpet. This caused extensive mold growth and electrical corrosion near the control modules. The affected systems include the third brake light seal, cab roof, interior materials, and ECM…”
filed Oct 5, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
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.
T-TT-0790-25 · Service Bulletin/Repair Instructions · issued Aug 20, 2025
Electrical System problems in other Tacoma years
| Year | Reports | Share |
|---|---|---|
| 2025 Tacoma | 5 | 5% |
| 2024 Tacoma | 16 | 11% |
| 2023 Tacoma | 12 | 22% |
| 2022 Tacoma | 4 | 7% |
| 2021 Tacoma | 9 | 11% |
| 2020 Tacoma | 8 | 9% |
| 2018 Tacoma | 14 | 7% |
| 2017 Tacoma | 22 | 9% |
| 2016 Tacoma | 36 | 11% |
| 2015 Tacoma | 8 | 8% |
| 2014 Tacoma | 7 | 8% |
| 2013 Tacoma | 13 | 10% |
Other reported problem areas on the 2019 Toyota Tacoma
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.