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CarComplaints.com Notes: Although it has a stellar record in terms of vehicle problems, initially the 4th generation (2003 - 2009) 4Runner didn't earn our top "Seal of Awesome" rating because it received poor crash test ratings for rear impacts. However it's proven to have one of the lowest driver death rates out of all vehicles (not just SUVs), so we've bumped it back up to our top award.

10.0

really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
88,608 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2006 Toyota 4Runner body / paint problems

body / paint problem

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2006 Toyota 4Runner Owner Comments (Page 1 of 7)

problem #121

Jun 272022

4Runner

  • miles

A D V E R T I S E M E N T S

My 4runner was purchased from a dealership and serviced there for rust related problems several times but was never told I had a serious rust problem. The problem is the frame has prematurely rusted and now the car is unsafe to drive due to the control arm rusting off the frame

- Leeds, MA, USA

problem #120

Apr 222022

4Runner

  • miles
Vehicle failed inspection due to rust on the frame. Bought vehicle because it is supposedly ruggedly built and for the frame to rust out when the vehicle has 103k miles and not driven off-road for more than a few times since we owned it is ridiculous. Dealer quoted $11k for the frame alone, not including labor. The fact this vehicle shares the platform with the Tacoma which was recalled for frame does not make sense. Vehicle was inspected last year (Virginia requires annual safety inspections), so given the amount of rust discovered makes me doubt whether or not the Toyota dealership did a thorough job inspecting the vehicle last year. We don't drive the vehicle that much so it doesn't make sense that it would rust som significantly.

- Chantilly, VA, USA

problem #119

Feb 212022

4Runner

  • miles
I took my car in for routine maintenance and they pointed out rust on the frame and suggested it was more than it should have and could cause a safety hazard.

- San Diego, CA, USA

problem #118

Jan 252022

4Runner

  • miles

A D V E R T I S E M E N T S

Rusted frame and under carriage is rusting other parts of the vehicle, very dangerous!

- Wilmette , IL, USA

problem #117

Oct 272021

4Runner

  • miles
machanic noticed rust when took in for service frame is thru and thru with rust damage especially at rear torsion bars NOT safe to drive

- Verona, KY, USA

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problem #116

Oct 132021

4Runner

  • miles
I purchased my 2006 4Runner brand new and am the original owner. The vehicle has never been in an accident and has been very well maintained and both the body and drivetrain is in great condition. I just learned that my entire frame is rusted and rotted out. I have been told the vehicle is unsafe to drive and this is a known problem with both Toyota Tundras and 4Runners. I was encouraged to file this report and attach pictures.

- Howell, MI, USA

problem #115

Sep 192021

4Runner

  • miles

A D V E R T I S E M E N T S

Frame under the vehicle has severe premature rusting including large holes that make the vehicle dangerous to drive. Vehicle has been inspected, and this is the info that was given to me. Vehicle model/year has seen this issue countless times from other owners, and Toyota has not paid to repair this major flaw from their vehicles. This vehicle has not been inspected by manufacturer, police, insurance representatives, but has been inspected by a body shop/ repair shop. No warning lamps or messages were shown. Vehicle frame has not failed yet, but needs replacement.

- Atlanta, GA, USA

problem #114

Jul 032021

4Runner

  • miles
Frame is rusting apart Rear lower trailing arm section has already been patched by previous owner Upper trailing arm connection point to frame crossmember has perished due to rust If the other side breaks the rear axle can flex excessively causing control problems Toyota-€™s service campaign for other trucks should not have omitted the 4Runner which shares many identical design characteristics

- Philadelphia , PA, USA

problem #113

Jun 062021

4Runner

  • miles
Corrosion related issues not found on other makes based on personal experience with other boxed ladder frame vehicles Extreme corrosion involving disintegration of the rear trailing arm already haphazardly repaired with steel doubler Ladder frame is disintegrating from interior of frame penetrating towards the exterior facade Compromises structural integrity and safety of vehicle that is seen beyond on many 4runners beside this particular example Brake calipers sticking due to corrosion requiring replacement on multiple occasions Binding of brake components cause severe pull under highway speed braking

- Cherry Hill, NJ, USA

problem #112

May 152021

4Runner

  • miles
Frame rust damage, normal street driving. Lower control arm mounts disintegrated causing vehicle to be not drivable. Along with complete frame rust that possibly couldve lead to even more dangerous conditions.

- Fort Worth , TX, USA

problem #111

Apr 082021

4Runner

  • 165,000 miles

A D V E R T I S E M E N T S

Excessive rust on frame, spare tire assembly rusted out, dealer tried to replace tire carrier assembly & winch but was unable to put spare in new assembly holder because of the rust and safety hazard saying it will fall off. I was advise of this today, April 8, at 3:00 pm. The dealership was going to report this to the local Toyota rep and put the spare tire inside the trunk of my SUV. This is a known problem with these 4runner trucks and dealer stated in the past I had superficial rust. I also see there is a pending class action suit and Toyota settle a similar suit with Tacoma and Tundra truck owners for the same rust issues. This vehicle has been well maintained and I put thousands of dollars in repair to keep it running well and trying to keep it safe. I understand there is a pending class action suit filed with the NHTSA August 17, 2018, plaintiff weinreich.

- Clifton, NJ, USA

problem #110

Nov 142006

4Runner

  • miles
2006 Toyota 4runner purchased new in November 2006. The frame has suffered from such bad frame corrosion that numerous mechanic have refused to put the vehicle on a lift for fear of complete frame collapse. This vehicle has been well maintained otherwise but is now a definite safety hazard due to the advanced frame corrosion. Service professionals have commented that they have never seen such frame disintegration in a vehicle of this age. I really feel this is a defective frame with rest of the vehicle in satisfactory and operable condition.

- Harvard, MA, USA

problem #109

Mar 202021

4Runner

  • 147,000 miles
Just bought a 2006 4runner and did not think to check underneath for anything. I noticed on the passenger side of the frame huge rust spots, it's rusting from inside the frame out to the surface. It's bad. I googled what I should do to fix it because now I'm out 7K for what I thought was a reliable SUV. They sell patch kits online requiring me to purchase the kits and have them welded to the frame by a professional after they clean the rust completely. That's expensive. Toyota should definitely take this seriously and not fight this claim. No truck that year should rust this bad. In fact I've bought a 77 Chevy C10 that was a farm truck most it's life and it did not have any frame rust what so ever. There's multiple claims on facebook and other 4runner specific groups online that have this same issue. A recall needs to happen. What if I didn't notice and I let my wife and kids ride in the SUV and the frame snaps in half down the highway? you recalled other models do to frame rust, but not the same year 4runner. Please help us 4runner owners fix this because all in all it's a great SUV Toyota makes some of the best product out there, we just want to keep them on the road.

- Springfield, MO, USA

problem #108

Feb 012017

4Runner

  • miles
Rusting of the frame underneath the truck.

- Wilmette, IL, USA

problem #107

Mar 102021

4Runner

  • 223,000 miles
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.

- Bluffdale, UT, USA

problem #106

Mar 012021

4Runner

  • 150,000 miles
The contact owns a 2006 Toyota 4runner. The contact stated that after a safety inspection, he was informed that the vehicle had failed the inspection due to an excessive amount of corrosion under the vehicle. A certified mechanic referred the contact to the manufacturer for further assistance. The vehicle had not been repaired. The manufacturer was made aware of the issue. The approximate failure mileage was 150,000.

- Arlington, VA, USA

problem #105

Mar 032021

4Runner 6-cyl

  • 100,000 miles
The contact owns a 2006 Toyota 4runner. The contact stated while having a routine inspection on the vehicle, he was informed by the independent mechanic that the chassis was extremely rusted. The local dealer was not contacted. The vehicle was not diagnosed nor repaired. The manufacturer was notified of the failure. The failure mileage was approximately 100,000.

- Croton On Hudson, NY, USA

problem #104

May 152020

4Runner

  • 98,000 miles
The dealer would not inspect my vehicle because of frame rust. The whole frame has rust over it. The part that failed inspection was the end caps.

- Kintnersville, PA, USA

problem #103

Jan 182021

4Runner

  • miles
I put my 2006 Toyota 4 runner limited in the shop to have the power steering pump replaced. The shop called me back and stated they refuse to work on the SUV because of the extensive rust damage to the frame. They were concerned about legal issues should they knowingly repair a vehicle that in their opinion was unsafe to drive. In addition, the fuel tank straps rusted away from the frame to a point where the fuel tank was only connected to the vehicle by the skid plate under it.

- Clarksville, MD, USA

problem #102

Jan 112021

4Runner

  • 160,000 miles
I have a 2006 4runner with no rust on the body but the frame is full of rust. All body mounts have rusted away from the frame causing a wable when hitting bumps. I am so worried that the car is going to break in half at any time. It causes unusual sounds, creaking, squeaking, unusual noises, bad alignment, uneven wear in the tires, suspension, and shocks.... frame is visibly bent and severely damaged... the worst thing is that I called Toyota for service and they won't fix my frame... my mechanic said that is too far gone to fix.. I'm not able to drive it because it broke off on me..

- Quincy, MA, USA

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