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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:
2 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
211,445 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 miscellaneous problems

miscellaneous problem

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2006 Toyota 4Runner Owner Comments (Page 2 of 4)

« Read the previous 20 complaints

problem #49

Jul 272020

4Runner

  • 140,000 miles

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

In Pennsylvania, there is a requirement for yearly safety inspections on all vehicles. We bought this vehicle from a used car dealership in July 2019 and have had little to no issues with the car. We replaced the exhaust (which is typical in Pennsylvania) and a few suspension parts in may/June 2020, only to be told that our mechanic observed rust to the frame that he believed posed a real danger to our safety. We took the car back in in late July 2020 to further investigate the frame issue, as the yearly inspection is up at the end of August. Our mechanic stated we could do a repair job of $1,500, but essentially the frame will not pass inspection next year. He said the rest of the vehicle is in excellent condition, but the frame is a safety hazard. We gave our local Toyota dealer a call to see if we could fully replace the frame and were willing to pay for needed repairs. The technician/representative in their service department let us know that the frame for this car has been totally discontinued. He stated our only option would be to have it custom made, shipped in from Japan, and would cost $7,000 just for that part. Labor was not discussed, as the car is currently only worth that much according to kelly blue book. Essentially, the car is totaled due to rusting on the frame that is a known issue in similar Toyota models in the same year (according to my research on this issue). I have tried to reach out to Toyota's customer service regarding this issue, but they say there is no services available at this time to repair the frame on this car. We had bought this car under the assumption that because it was not included in the recent frame recall, it would not be an issue.

- Pittsburgh, PA, USA

problem #48

Jun 292020

4Runner 6-cyl

  • 152,000 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.

- Eastham, MA, USA

problem #47

Apr 052020

4Runner

  • 115,235 miles
The frame is completely rusted with rusted out holes. Caused the driver side lower control arm to break off, almost causing my teenage son to crash fortunately he was on a side street and driving slow

- Bartlett, TN, USA

problem #46

Feb 262020

4Runner

  • 211,000 miles

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

I was driving my 2006 Toyota 4 runner on highway when frame broke by rear tire causing me to crash into the median. I had towed too repair shop and was notified that the whole frame was rotted from rust and the vehicle is no longer drive able. What? it ran like a champ and and I never had any problems with it. Did normal maintenance life was good. The engine out lasted the frame. That is just crazy apparently the 2006 Tacoma, highlander, and Tundra that used same frame were covered but Toyota skipped the 4 runner. The frame completely split and was close in other area. There must be some recourse.

- Knoxville, TN, USA

problem #45

Feb 142020

4Runner

  • 197,000 miles
There is significant and substantial rust on the frame of this vehicle. There is more than one hole eaten completely through the frame, along with terrible surface rust that has eaten the frame so thin that any light tap creates a hole completely through. This has also rusted through the fuel tank straps, and other various suspension points. The service technician at Toyota told me the vehicle is not recommended to stay on the road, and did not want to service the timing belt due to fear that other components would easily snap off because of the amount of rust all over the entire frame. This vehicle is very similar to my 2010 Toyota Tacoma, and shares several related parts and pieces. I am fully aware of the recall for frame rust on the Tacoma, and fortunately my truck was not damaged. This vehicle is too much like the Tacoma to not have the same consideration of having the same issues. No vehicle, much less a vehicle only 14 years old should have this bad of an issue, and it is a widely known problem in the Toyota enthusiasts community. This is a newer vehicle for my wife, and now I am being told that it is too dangerous to drive! from the outside of the vehicle, you would never know there was any issues at all. But after seeing the rust and holes, the rusted through fuel tank straps, I am shocked, dismayed, and absolutely scared to let my wife continue to drive it. Please take the time to review these cases, and see how they relate as exactly the same situation as the Tacoma and Tundra frames. I have owned numerous Toyota vehicles through my lifetime, and Toyota have always been my favorite and absolutely amazing vehicles for me. This is definitely out of the normal spectrum that I consider when I think of, and brag about the reliability and all around enjoyment I have in and with my Toyota and Lexus vehicles. Thank you for your time and help in this matter.

- Gainesville, GA, USA

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problem #44

Jan 132020

4Runner

  • miles
I bought my 4runner new and have taken meticulous care of it via the dealership I bought it from, doing an oil change every 5000 miles. Now they tell me the truck should not be driven since the frame has rusted through in the rear. The trucks maintenance was done at prestige Toyota mahesh NJ 201-669-4525 service manager is robert J teunisen

- Warwick, NY, USA

problem #43

Jan 132020

4Runner

  • 158,300 miles

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

Frame is rusting through, I was having work done and the mechanic pointed it out to me.

- Decherd, TN, USA

problem #42

Jul 072019

4Runner

  • 136,000 miles
My frame on my 4runner is showing major signs of rust a huge hole has formed right in the main frame driver side. And another in the trailing arm mount also driver side. If my trailing arm snapped loose on a dirt road it could flip the whole car. It's only 14 years old now and this is way excessive for that age as most vehicles will drive in the salt belt states for way longer. As you know this isn't the first frame issue with Toyota. They really slacked in rust preventing. I no longer feel safe driving the thing because I don't know when she might just snap in half or worse if I get into an accident it could just crumple like a tin can. This needs to be fixed. Others have said their frame completely seperated in half on the road. This could kill people. The picture I provided is old now the whole has widened quite a bit. I hope a recall happens soon otherwise imna have to patch it.

- Wyoming, MN, USA

problem #41

Dec 102019

4Runner

  • 136,000 miles
While I was I driving on the highway, the rear window exploded while I was using the rear window defroster. I smelled a burning smell just prior to it exploding glass all over the back cargo area

- Lago Vista, TX, USA

problem #40

Dec 012019

4Runner

  • 190,000 miles
Frame is rusted excessively. Garage kept every winter. My rear driver side sway bar has completely rusted off the frame.

- Noblesville, IN, USA

problem #39

Dec 032019

4Runner

  • 197,000 miles

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

The frame is so rusted everywhere that it is unsafe to drive. One huge hole is completely broken through both sides of the frame and the bottom plate has cracked through. I have a highly reputable welding shop set to repair and patch this but I feel Toyota needs to take care of this before it costs me everything.

- Batavia, OH, USA

problem #38

Nov 292019

4Runner

  • 139,000 miles
Hi, I am writing this letter in regards to the potential recall of the Toyota 4runner rotting frames. I purchased a beautiful 2006 Toyota 4runner sport in Oct of 2018 this SUV had less than 130,000 miles, the body and interior are in immaculate condition' I loved it. Then a few weeks later I take it to a shop to have the sway bar bushings done and find out from that shop that the frame is overly rusted they stated Toyota has a recall on rusted frames and tells me to go to a Toyota service center and look into it, so I did the following day and they told me they recalled the Tundra, sequoia and the Tacoma but haven't recalled the 4runner the Toyota service advisor told me that he had a flood of 4runner owners bringing their SUVS to be inspected and some were so severe and the 4runners should have been included' he recommended that we undercoat it until a recall happens, so my husband takes it and spends about $250 and undercoats the whole underneath. Now it has been a year of ownership and we brought our 4runner to a shop to have some shock and strut work done and they informed me that the frame is overly rusted again and the undercoat has worn off and now there are severe cracks in the front and the rear of our frame, I am totally sickened and afraid to drive this now. Before buying this 4runner I did research and was looking for a top rated SUV that was reliable and safe in an accident and the 4runner was there' now look what I have a very unsafe car not only for me but also my family and to other families that are out on the road. I purchased this SUV for $8,700 using up years of money saved and now im finding out that I will need to bring it into a frame shop for either welding and or possible frame replacement.

- Chesterfield, MI, USA

problem #37

Dec 032019

4Runner

  • 208,000 miles
Did an oil change yesterday, and as usual I do an inspection on my undercarriage to make sure everything is fine, (I.e. leaks, making sure the suspension is tight, etc) and I am noticing excessive frame corrosion, which is worrisome as I know there have been recalls on the Tacoma, Tundra, and sequoias, but nothing for the 4runners. Its starting to get pretty bad and I really wouldnt want my frame to fail as the rest of the truck is in excellent condition. I just want Toyota to make it right like they did for the others. I love this truck and would not want something catastrophic to happen

- Streamwood, IL, USA

problem #36

Dec 022019

4Runner

  • 2 miles
Rear hatch window shattered due to overheating of defroster. Overheated while in motion. Shattered after parked.

- Plano, TX, USA

problem #35

Aug 012018

4Runner

  • 145,000 miles
Frame rust recall- the vehicles frame has major rust and cracks. Vehicle will not pass state inspection due to the the amount of rust that has accumulated.

- Front Royal, VA, USA

problem #34

Jun 182019

4Runner

  • 120,000 miles
I purchased this vehicle used from a dealer in 2014 with low miles on it and it appeared to be in great shape. The undercarriage was sprayed with what I thought was a coating to protect against rust. I realize now the dealer was probably trying to hide the rust problems. The coating flaked off a short time later and ever since, I too have been plagued by the frame and other component rust problems. Had to replace the exhaust, running boards, sway bar and several other things that all rusted off on the undercarriage. My skid plates are about to fall off next. Just had my brakes replaced and the shop noticed a couple areas where frame now has holes through it and says it likely won't pass state inspection which will be coming due soon. The rust problems with these 4runners seems like a big problem that Toyota should address. I'm going to have to put a bunch more money into fixing this vehicle or be left with a worthless piece of junk I can't drive and will be taking a big loss on.

- New Gloucester, ME, USA

problem #33

Jun 172019

4Runner

  • 145,000 miles
I was driving down the highway using my rear defroster when my back window shattered without cause, it sounded like a gunshot. The shock caused me and the driver behind me to both swerve almost causing two wrecks.

- Richardson, TX, USA

problem #32

Apr 172019

4Runner

  • 131,000 miles
I was driving home on a Suburban road going about 25 mph and took a corner which felt like I had hit snow or ice, however conditions were optimal. The fishtailing continued and I parked my car as it did not feel safe to drive. When the mechanic looked at it he said I could have been in a serious accident and possibly a roll had I taken it on the highway. The frame was cracked. We also had already replaced the suspension on this vehicle, and the exhaust fell off on the highway the year prior due to rust. The underbody of the car is excessively rusted.

- Lafayette Hill, PA, USA

problem #31

Apr 022019

4Runner

  • miles
The mechanic replaced the rusted exhaust system today and advised me to get rid of this vehicle as soon as possible as it would not be safe to operate in less than a year due heavy and unusual flaking rust on the frame and other undercarriage parts.

- Blairstown, NJ, USA

problem #30

Feb 272019

4Runner

  • 103,125 miles
The frame is rusted bad in front of left rear wheel while the rest of vehicle looks new.

- Valley Bend, WV, USA

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