2016 Toyota Highlander electrical system problems
14 owner complaints filed with NHTSA name the electrical system on the 2016 Toyota Highlander — 13% of all complaints for this model year.
What owners report
“The contact owns a 2016 Toyota Highlander. The contact stated that while the vehicle was parked, the trunk power switch failed to function as intended. The contact stated that the trunk power switch was enabled to unlock, however the trunk door did not unlock. The contact stated that the trunk…”
filed Nov 20, 2024
“2016 toyota highlander le model v-6 cylinder. The FUEL PUMP runs after engine has been turned off for several hours, even up to as many as 8 hours. This situation can be heard in a closed in garage, in the completely quiet of night time, and at multiple times during the same time period. It happens…”
filed Dec 26, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Brake fluid level sensor may not be connected to the wire harness, preventing the sensor…Campaign 16V775000 · Oct 24, 2016
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% |
| 2017 Highlander | 46 | 18% |
| 2015 Highlander | 51 | 27% |
| 2014 Highlander | 35 | 26% |
| 2013 Highlander | 25 | 12% |
| 2012 Highlander | 29 | 16% |
Other reported problem areas on the 2016 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.