2003 Toyota Highlander electrical system problems
15 owner complaints filed with NHTSA name the electrical system on the 2003 Toyota Highlander — 6% of all complaints for this model year.
What owners report
“Check engine light keeps reporting an issue and despite takata recall - spending thousands of dollars on coded repairs, the light comes back on. I have spent numerous dollars to replace cat converter, 2 sets of injectors, fuel pump, on and on......within 2 days, the light is back on. I saw a…”
filed May 12, 2017
“Driver side rear brakes will not illuminate after you depress your brakes. Replaced bulb and socket that houses bulb and will not work. Check online for similar issues and read reports of 2002-2006 highlanders having either left or right side rear not working. *tr”
filed Nov 25, 2014
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
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% |
| 2016 Highlander | 14 | 13% |
| 2015 Highlander | 51 | 27% |
| 2014 Highlander | 35 | 26% |
| 2013 Highlander | 25 | 12% |
Other reported problem areas on the 2003 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.