2017 Toyota Highlander electrical system problems
46 owner complaints filed with NHTSA name the electrical system on the 2017 Toyota Highlander — 18% of all complaints for this model year.
What owners report
“March 5th purchased a battery from Autozone Z net Fit Match that caused cascading electrical and life -safety risk while traveling from hewitt, TX to Washington DC for our families spring break trip including 4 minor children. Component: 12-Volt Battery / Electrical System / Power Steering /…”
filed Mar 25, 2026
“Formal Complaint to NHTSA – Summary I am submitting this formal complaint regarding repeated mechanical and electrical failures involving my 2017 Toyota Highlander, purchased as a Toyota Gold-Certified vehicle with an extended Platinum Warranty. Despite strictly following Toyota’s maintenance…”
filed Sep 11, 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, 2025The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and…
T-SB-0058-23 Rev1 · Service Campaign · issued Jun 13, 2025
Electrical System problems in other Highlander years
| Year | Reports | Share |
|---|---|---|
| 2024 Highlander | 6 | 15% |
| 2023 Highlander | 12 | 7% |
| 2022 Highlander | 16 | 7% |
| 2021 Highlander | 25 | 5% |
| 2020 Highlander | 16 | 5% |
| 2019 Highlander | 55 | 12% |
| 2018 Highlander | 24 | 9% |
| 2016 Highlander | 14 | 13% |
| 2015 Highlander | 51 | 27% |
| 2014 Highlander | 35 | 26% |
| 2013 Highlander | 25 | 12% |
| 2012 Highlander | 29 | 16% |
Other reported problem areas on the 2017 Toyota Highlander
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.