2006 TOYOTA 4RUNNER Recalls, Complaints & Safety

MYself and my fiancee were driving to our family's home, the rear defrost was on due to foggy windows as we were driving down the road there was a loud noise from the back half of the 4 runner. I had turned and looked back behind me and the rear hatch window was completely shattered. Its still intact in the window frame but about to fall out. This happened out of nowhere no warnings or anything.

The frame under the car rusted so much that the gas tank literally fell through the frame to the ground. This put my son at risk and fortunately he was able to pull over in a residential area and exit the vehicle. A mechanic and welding company both assessed the vehicle and acknowledged the u unusual and excessive rusting. In researching online and speaking to car experts, this seems and is confirmed to be poor manufacturing and materials used for the frame.

Excessive frame corrosion

Dangerous and rusted through frame. The vehicles frame should have been recalled like the other Toyotas affected.

We took the vehicle in for inspection and it failed due to the exhaust leaks, and more importantly the frame rusting out. We never received the recall notice for this issue. We have owned this vehicle for many years, so there is no reason we would not have been notified for the recall of the frame. The vehicle was just serviced last year and we spent a great deal of money to keep it running properly so we would not have any issues and it would last us for quite a long time to come. With the frame being rusted through, there is simply no way to keep this vehicle safe. Toyota did not notify customers that had the vehicles with the frame issue. This is something that is simply not acceptable. We are a family of Toyota owners and have always depended on the reliability of them. Finding this out has really shocked us and honestly diminished our trust in the Toyota reliability. Is Toyota willing to fix this issue, are we just stuck with this. Please help.

My 4runner have major frame rust issues and is a major safety hazard. This a known issue to Toyota and a recall needs to be made.

The contact owned a 2006 Toyota 4Runner. The contact stated that her son was driving at an unknown speed when another vehicle pulled in front of them to change lanes without warning causing her son to t-bone the vehicle and sending the other driver's vehicle to spin crashing into other vehicles nearby. The air bags deployed however their son received 2nd-degree burns on their right and 1st-degree burns on their lower region, and a concussion. The contact was unable to confirm if any other persons received injuries but was able to confirm other vehicles were damaged from the crash. Medical attention was needed. A police report was filed. The vehicle was towed to their insurance company's facilities who had stated the vehicle was totaled. The dealer was not contacted. The manufacturer was not made aware of the failure. The failure mileage was unknown. The VIN was not available.

Crash 1 injured

UNKNOWN, found excessive rust on undercarriage

The rear window on my 2006 4Runner suddenly shattered. I had just cleared the car of snow, put my son in the car and left the house. Less than 1/10th of a mile down the road it exploded. Glass could have gone all over the child in the backseat. There have been past issues. Toyota offered an extended warranty on the part until 2018, so they are aware of the problem. Not yet. No warnings.

The contact owns a 2006 Toyota 4Runner. The contact stated that after a State Inspection, the vehicle was declared unsafe to drive on the State roadways due to severe corrosion. The contact stated no warning light was illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the subframe needed to be replaced due to extensive corrosion. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 140,000.

While towing a 16' utility trailer using the 2" ball on a Switch Ball #42178, the ball separated from the shank. I was driving my 2007 Toyota 4Runner traveling on the highway at about 60mph at the time. Fortunately the safety chains did their job and prevented the trailer from completely disconnecting from the vehicle. Upon stopping my vehicle several hundred feet after separation, I found the 2" ball still locked and secured inside of the trailer's coupler, and the shank still securely attached to my vehicle. As a result my rear bumper is now heavily damaged from the trailer contacting it after uncoupling from the vehicle. I'm glad nobody was hurt or killed as a result of this incident. If the safety chains had not done their job, the unattached trailer could have caused serious damage, injury, and/or death. This incident could have also resulted in losing control of my vehicle, which thankfully I did not. This Switch Ball #42178 was purchased in September of 2022 and this was the first time I've used it. At the time of the incident I had towed the trailer approximately 75 miles. I have a background in selling and installing utility trailers and towing accessories. I'm confident the product was installed and used as directed. I contacted Curt Manufacturing with the above concerns. At their request I shipped the trailer ball to them for inspection. They have denied any responsibility stating their product did not fail. They have blamed the incident on "user error". I'm happy to share all communication with the NHTSA. I am including pictures of the damage to my bumper which was caused by the trailer after the Curt ball became disconnected from it's mating shank. I can share more about my assessment of why this failure occurred upon request.

My control arm ripped completely off my fram on the passenger side due to excessive rust putting me and my family and any one else on the road at risk of something catastrophic.

Corrosion of pistons in front brake calipers results in an increase in braking stopping distance. Everytime the front brake pads are replaced the same issue is encountered, defect has taken place three times. In the four piston brake caliper the inside pistons on both the left and right caliper are frozen in place . The brake pads on the outside position have twice as much wear as the inside pads. This is an indication of uneven braking leading to increased stopping distance . Toyota maintains , there is not a problem, yet in forums on the web there are many experiences with owners having the same problem , resulting in costly repair bills. There is no warning of reduced braking efficiency .

The vehicle headlights have failed on multiple occasions. The cause of the failures was ingress of water into the sealed headlamp assembly. The problem was reported to Toyota. Toyota took no action regarding the reports. The entire headlight assembly was replaced three (3) times at our expense. The problem persists. Attached is a photograph of the second (replaced) clearly showing water inside the headlight assembly. The current (most recent replacement) has also experienced water ingress and is available for inspection. The subject vehicle was inspected by three different body shops (two if which are authorized Toyota shops). It was confirmed by all three shops that there is no vehicle design feature that could cause water ingress in the headlamp assembly. This is a serious safety issue and has been brought to Toyota's attention with no response.

The frame is corroded and rusted to the point that it’s not safe to drive. This was discovered by our service technician when we had the vehicle inspected for a rattling noise in the rear. I reached out to Toyota and was told that no problems are available regarding this issue. I have maintained my 4Runner meticulously and timely since I purchased brand new. There is no rust on the body, just the frame.

My 2006 4Runner Toyota frame is rusted and falling into pieces. From the rear especially and underneath. I’m scared if someone rear ends me that the impact could be life threatening due to the frame falling to pieces as I drive and the vehicle sits.

My car is a 2006 Toyota 4Runner. This past summer I had a tire leaking and took it to the garage for repair. The mechanic stated that the frame is rusting out in the front right, tire rod area, and saw a pinhole. Last week I took the vehicle to get a transmission oil change. That mechanic saw that there's more rust that is spreading throughout the entire frame, worse than the area found from just a few months ago. I learned online that Toyota had purposely used cheap steel for the frame and had replaced the same frame used on other trucks such as the Tacoma and Highlander but is refusing to replace the 4Runner. These rusted out frames are affecting many 4Runners. I have a 1964 Cadillac and that frame is in better condition than the 4Runner. I'm forced to pay $15,000 to replace the frame or salvage my car. It shouldn't have come to this, especially when the same frame that was replace on other trucks isn't being replaced for mine.

My 17 year old son was parked and when he turned off the defrost the rear hatchback glass shattered. This scared him a lot as we do not know what happened and thankfully he was parked not driving. This is a safety and potentially dangerous issue. We purchased this used vehicle and had Toyota thoroughly inspect and update and upgrade anything he needed and they never told us this was an issue. We researched it online and it has been an issue. This should have been addressed and recalled. I brought in vehicle so that they can fix it and they are saying they won’t even though it’s their equipment defect.

The frame of the vehicle was corroding as if it was not sealed effectively. The frame rotted to point where vehicle began swaying on road and during mechanic check the frame bent when vehicle placed on a lift. I am original owner of vehicle and took the vehicle to local Toyota dealership for ALL scheduled maintenance. The Toyota dealer mechanics NEVER reported signs of corroding frame damage in the vehicle bumper to bumper checks during my scheduled maintenance appointments. I was never informed of any signs of rotting or corroding on the frame.

Under carriage and frame rust due to bad frames that caused a recall on other Toyota models that were settled, but not the 4 Runner.

I have a 2006 Toyota 4Runner. I also have a 2005 GMC Sierra, but this 4Runner's frame is absolutely toast, while the GMC is completely fine. Toyota issued recalls on the tacoma, tundra, and the sequoia, so why not the 4Runner? My car started swaying and violently shaking on the highway. I pulled over and looked underneath, only to see the rear section of the frame had completely disconnected. This could have caused a major accident or even death if I did not catch it soon enough. This is a MASSIVE safety issue, and if people do not know what to look for with these, Toyota will be seeing a lot of wrongful death lawsuits.

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

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.

Since an inspection Oct 2021 the rust/corrosive on the frame has become. Dangerously close to rotting thru the entire frame! It’s not driven in the winter months when snow or ice melt (salt) is on the roads to prevent situations like this. With only 75,000 miles always garage kept and maintained like it’s brand new this vehicle might be able to be saved for a model in a shop class to practice welding. Something needs to be done because this ifvvjj

The rear window shattered spontaneously while the rear defroster was on. There was no impact to the window and no prior chips/scratches. The tint held the shattered window together, but without the tint glass would have gone flying inside and outside the vehicle, putting passengers and cars traveling behind at risk. No warnings or issues were present for the rear window or defroster system prior to incident. The problem has been inspected by Toyota of Orlando. This problem is known to Toyota under their enhanced warranty program ZG7, but they refuse to cover the repair because the date to experience the shattering rear window has passed. There are numerous other cases reported of this issue. Toyota of Orlando confirmed this would fall under their ZG7 program, had the window shattered and brought to a dealer prior to 4/30/2018.

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.

It’s the frame! It’s completely rotting away the corrosion is unreal it has just over 75000 miles very clean no rust any wear else but underneath is completely gone makes it so unsafe that if not fixed the vehicle will split in half and kill somebody!!!!!!!

The frame is only the bottom 1/2 is Swiss cheese as they say from rust, the top 1/2 is sold. As the steel used was defective to rot out on 1/2 all the way around but not the other 1/2. Only the bottom 1/2 is rotten off

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

The rear window shattered and is not available for inspection because it's in a million pieces. There is now broken glass all inside the vehicle and on the ground. The car was inspected at the dealership, but not insurance. There was no warning leading up to the incident. The defroster for the rear window was on due to weather. The loud bang and sound of glass falling is how I was aware of the failure.

I have frame rust issues on my 2006 Toyota 4Runner. I first heard about the rust issue in 2018, I contacted Toyota and they send me to Huntington Toyota in New York to get it check. They said it's fine. A couple of weeks ago the frame cracked from rust. I've contact Toyota again and they denied the repair. It is vary obvious the frame issue was a flaw from the beginning. I like to see them replace the frame.

This morning my 4Runner rear window exploded inward all over my car while I was idling in a parking lot just after having driven on the highway. I had the defrost on. I lept out of car terrified covering my head thinking I was under attack. Nobody was near me and no projectile was found inside car. I was confused all morning Until I googled exploding forerunner window and saw that they had an extended warranty that has expired in 2018. Should absolutely be a safety recall, I can only imagine what would’ve happened if that had exploded while I was driving on the highway, or with my 2 yr old son who’s car seat is now covered in broken glass. A quick search online revealed several testimonies of it exploding while driving 2006 4runner. I contacted Toyota and have a case number with them it is case number 211228002935. They said that because the warranty was expired they can’t do anything, I don’t even care about getting reimbursement for window as much as I care about them addressing this as a real safety issue and recalling it. Although I’m am shell shocked and have anxiety condition and heart Condition already, I am more worried about this happening to somebody while driving or if somebody has a more dire heart condition or severe PTSD.

The component that failed is the frame of the car. The frame is disintegrated in some places, rusted through in others, and in general rusted all over. I went for an oil change and discovered that the pan holding the gas tank had rusted through and the gas tank was about to fall out of the car. I was told that had this occurred while I was driving the car could have started on fire. The vehicle has been inspected and repaired by a Toyota dealer and an independent service center on several occasions. No warning lamps or messages.

I own a 2006 Toyota 4Runner Sport and have major rust issue with the frame of vehicle. Toyota is aware of this issue and I believe it is a safety hazard. No way should it rust like it has.

The Frame and Suspension Components of the vehicle have corroded or rusted badly and prematurely even though the rest of the vehicle is in excellent condition. This is a known and common occurrence with the 4th Generation Toyota 4Runner Vehicles such as this 2006 model. - Currently the upper Rear Differential Stabilizer Arm has completely rusted off causing handling problems with the vehicle. Many areas of the frame are rusted through making it difficult to jack up or raise the vehicle on a hoist. - Problem has been observed and reported by Dealer(s) and Independent Shops I have visited. - This has NOT as yet been inspected by manufacturer representatives other than dealers. - This first appeared in late 2012 when I purchased the vehicle used with approx. 75,000 miles. - In May 2015 I struck a deer with the vehicle travelling on a US Trunk Hwy and the rust problem was reported as being severe by the body shop who repaired the front end damage. Note: The corrosion, in my opinion, did NOT cause the accident with the deer.

Crash

The Frame and Suspension Components of the vehicle have corroded or rusted badly and prematurely even though the rest of the vehicle is in excellent condition. This is a known and common occurrence with the 4th Generation Toyota 4Runner Vehicles such as this 2006 model. - Currently the upper Rear Differential Stabilizer Arm has completely rusted off causing handling problems with the vehicle. Many areas of the frame are rusted through making it difficult to jack up or raise the vehicle on a hoist. - Problem has been observed and reported by Dealer(s) and Independent Shops I have visited. - This has NOT as yet been inspected by manufacturer representatives other than dealers. - This first appeared in late 2012 when I purchased the vehicle used with approx. 75,000 miles. - In May 2015 I struck a deer with the vehicle travelling on a US Trunk Hwy and the rust problem was reported as being severe by the body shop who repaired the front end damage. Note: The corrosion, in my opinion, did NOT cause the accident with the deer.

Crash

FRAME HAS HOLES AT 150000 MILES. My car has 150,000 miles on it. We are the second owner, although we've had it for over 10 years. The frame has holes in it. It is dangerous to drive in its current condition. There's no way I could sell it and feel good consciously to give this car to someone else. My son has older cars with more miles whose frame does not look anything like this. This is an issue that has been recalled for all other cars in the Toyota lineup except for the 4Runners.

MY 2006 TOYOTA 4 RUNNER, I'VE FOUND A LARGE AMOUNT OF RUST THROUGH OUT THE FRAME OF THE VEHICLE. I FEEL THE VEHICLE IS NOT SAFE TO DRIVE. TOYOTA HAS FRAME REPLACEMENT RECALLS TO THE TUNDRAS, AND SEQUIAS BUT NOT THE 4RUNNER. I FEEL THIS IS AN ISSUE THAT TOYOTA IS AWARE OF. I ALSO FEEL THAT SOMETHING SHOULD BE DONE FOR MANUFACTURING A VEHICLE WITH DEFECTIVE CHASSIS.