2006 Toyota 4RUNNER Body and structure Problems
- Complaints
- 143about this part
- Share
- 38%of 381 total for the year
- Median mileage
- 126,728miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 143 complaints about the body and structure of the 2006 Toyota 4RUNNER, 38% of the 381 complaints for this model year. Where a mileage was given, the median is 126,728 miles. 2 of these say a crash was involved, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Vehicle's skid plate rusted completely off. Original owners, all family members, have kept the vehicle cleaned well underneath since first day of ownership. When we lifted the 4RUNNER up on a lift, we saw multiple rust holes in the frame as well as extreme oxidation in the center at certain places. I need to have lots of frame repair done to feel safe driving it.”
NHTSA complaint #11402526, filed 2021-03, 223,000 miles“The frame of my 2006 4RUNNER has excessive corrosion and rust. There are areas where the metal has become very thin, and more and more metal keeps flaking off all the time. I have already noticed a couple of holes through the frame rails. I'm especially worried about the areas where suspension components bolt up to the frame, those areas show severe rust and corrosion.”
NHTSA complaint #11194626, filed 2019-04, 120,000 miles“Our frame is rusted so badly that it would have failed the safety inspection if we did not fix the huge holes in it at the rear bumper. We are were told by our safety inspector that our entire frame is very rusty and we must do something to fix it right now. It will not pass the safety inspection for next year. This needs to be recalled by Toyota as part of their frame recall!”
NHTSA complaint #11156520, filed 2018-12, 168,805 miles“Major frame rust. The body is still great but when you look underneath it's a different story. I can flake off pieces of the frame with my finger. My mechanic says it may only have a couple of years left. I will have to take it to a dealership to get their opinion on the matter.”
NHTSA complaint #11331575, filed 2020-06, 152,000 miles“The frame is rusted through in a couple of places on my 4RUNNER. My local dealer did an inspection and there are holes rusted through the frame. I'm afraid in an accident that the frame will not hold up and cause injury to my occupants and myself. Please inform Toyota of these rusted frames. Thank you!”
NHTSA complaint #11145014, filed 2018-11, 96,438 milesRelated service bulletins
- 11012744Dec 6, 2024The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic…
- 11012743Dec 6, 2024To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film…
- 11012742Dec 6, 2024Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an…
- 11012735Dec 5, 2024Toyota vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces. This material protects from acid rain, environmental…
- 11012727Dec 3, 2024Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding…
- 11007455Jul 29, 2024Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate…
- 11006161Jul 29, 2024Some 2005 – 2024 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate…
- 11007445Jul 12, 2024The condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic…
- 11007444Jul 12, 2024To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film…
- 11007443Jul 12, 2024Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an…
Body and structure: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 7 | 12% |
| 2024 | 3 | 30% |
| 2020 | 2 | 6% |
| 2019 | 3 | 5% |
| 2018 | 5 | 8% |
| 2017 | 2 | 6% |
| 2016 | 9 | 11% |
| 2015 | 8 | 9% |
| 2014 | 8 | 10% |
| 2013 | 2 | 6% |
| 2012 | 2 | 2% |
| 2011 | 9 | 6% |
| 2010 | 12 | 8% |
| 2009 | 3 | 14% |
| 2008 | 16 | 17% |
| 2007 | 40 | 26% |
| 2006 | 143 | 38% |
| 2005 | 185 | 44% |
| 2004 | 310 | 46% |
| 2003 | 284 | 41% |
| 2002 | 88 | 39% |
| 2001 | 81 | 44% |
| 2000 | 256 | 53% |
| 1999 | 112 | 34% |
| 1998 | 78 | 31% |
| 1997 | 76 | 29% |
| 1996 | 42 | 26% |
| 1995 | 4 | 2% |
| 1994 | 6 | 9% |
| 1991 | 1 | 2% |
| 1990 | 8 | 10% |
| 1989 | 1 | 17% |
| 1988 | 1 | 11% |
Other parts of the 2006 Toyota 4RUNNER
78 complaintsSuspension
65 complaintsBrakes
34 complaintsTransmission and drivetrain
30 complaintsAir bags
24 complaintsSteering
22 complaintsVisibility (wipers, defrost, mirrors)
22 complaintsElectrical system
18 complaintsVehicle speed control
17 complaintsTires
13 complaintsEngine cooling
11 complaintsEngine
7 complaints
← All problems reported for the 2006 Toyota 4RUNNER
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology