2006 Toyota 4RUNNER electrical system problems
18 owner complaints filed with NHTSA name the electrical system on the 2006 Toyota 4RUNNER — 5% of all complaints for this model year.
What owners report
“The plastic slider for the sunroof malfunctioned releasing the sunroof so when I went to open the sunroof while driving the airflow caught underneath the sunroof lifting it up and shooting it off and hurtling into traffic behind me and innocent highway drivers, and I completely shocked did not know…”
filed Aug 9, 2021
“2006 4runner rear glass exploded/shattered after using defrost - was denied reimbursement despite this being a known issue and faulty defrost connector. After dropping my 5 year old son off for school on 1/15/2021, I pulled up to a stop sign and heard a loud crash from the back of the car. I looked…”
filed Jan 15, 2021
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Electrical System problems in other 4RUNNER years
| Year | Reports | Share |
|---|---|---|
| 2025 4RUNNER | 7 | 13% |
| 2022 4RUNNER | 2 | 5% |
| 2021 4RUNNER | 3 | 9% |
| 2019 4RUNNER | 8 | 13% |
| 2018 4RUNNER | 4 | 7% |
| 2017 4RUNNER | 5 | 14% |
| 2016 4RUNNER | 18 | 23% |
| 2015 4RUNNER | 13 | 15% |
| 2014 4RUNNER | 24 | 31% |
| 2013 4RUNNER | 4 | 11% |
| 2012 4RUNNER | 6 | 6% |
| 2011 4RUNNER | 6 | 4% |
Other reported problem areas on the 2006 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.