2005 Toyota 4RUNNER power train problems
23 owner complaints filed with NHTSA name the power train on the 2005 Toyota 4RUNNER — 6% of all complaints for this model year.
What owners report
“I have a 2005 Toyota 4runner with frame rust that has caused everything under my 4runner to rust. Toyota knows these frames have problems with rust and corrosion and have done nothing, I am far from being the only one with this complaint or problem. It is up for inspection anytime. I have taken it…”
filed May 14, 2026
“- The undercarriage and frame have had premature rusting for years. The car is otherwise in excellent condition due to my care of it over the last 20 years. 5 years ago, a service person at my local Toyota dealership said, "I'm really disappointed in Toyota, I've never seen rust like this." I have…”
filed Jul 9, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other 4RUNNER years
| Year | Reports | Share |
|---|---|---|
| 2025 4RUNNER | 2 | 4% |
| 2023 4RUNNER | 2 | 7% |
| 2022 4RUNNER | 1 | 3% |
| 2021 4RUNNER | 1 | 3% |
| 2020 4RUNNER | 1 | 3% |
| 2019 4RUNNER | 4 | 6% |
| 2018 4RUNNER | 3 | 5% |
| 2017 4RUNNER | 1 | 3% |
| 2016 4RUNNER | 6 | 8% |
| 2015 4RUNNER | 4 | 5% |
| 2014 4RUNNER | 1 | 1% |
| 2013 4RUNNER | 1 | 3% |
Other reported problem areas on the 2005 Toyota 4RUNNER
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.