NHTSA owner reports · September 18, 2026 snapshot.
Suspension complaints
43 reportsClear category filter115,000 miles · Apr 18, 2022
StructureSuspension
The contact owns a 2002 Toyota 4Runner. The contact stated that while driving 60 MPH through a slight right curve, the vehicle independently shifted from side to side without warning nearly causing the vehicle to flip. The contact had an independent mechanic inspect the vehicle and the mechanic discovered severe corrosion throug…
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The contact owns a 2002 Toyota 4Runner. The contact stated that while driving 60 MPH through a slight right curve, the vehicle independently shifted from side to side without warning nearly causing the vehicle to flip. The contact had an independent mechanic inspect the vehicle and the mechanic discovered severe corrosion throughout the entire subframe of the vehicle. The mechanic informed him that the entire subframe needed to be replaced to ensure safe driving. Neither the dealer nor the manufacturer had been notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 115,000.
NHTSA ODI #11461138
Mileage unknown · Dec 15, 2021
StructureSuspension
Frame and rear passenger control arm bracket, rotted out .only there, 2 nd time this has happened, same spot but on my previous 2001 4runner
NHTSA ODI #11443916
Mileage unknown · Oct 28, 2021
StructureSuspensionUnknown Or Other
Had vehicle inspected on Oct. 1 ,2021 for road trip to North Carolina from Washington, DC. Was informed that my vehicle is unsafe by the automotive shop (name withheld) due to [rusting] frame front suspension components' threads rusted off on bolts that hold suspension, control arms, and shocks on both front and rear areas + bo…
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Had vehicle inspected on Oct. 1 ,2021 for road trip to North Carolina from Washington, DC. Was informed that my vehicle is unsafe by the automotive shop (name withheld) due to [rusting] frame front suspension components' threads rusted off on bolts that hold suspension, control arms, and shocks on both front and rear areas + body of vehicle located where shocks bolt to the body. I also had two other shops (names withheld) assess the state of the frame and suspension + and was told that the vehicle has maybe 1 year or so until the frame falls apart. Given I am the original owner, have gargage-kept my vehicle, have very low-mileage - 74,000 miles, and have maintained the vehicle immaculately and am aware of rusting problems with other Toyota [truck] frames, etc. this seems to be a defect in the manufacturing process. I know there have been recalls on Toyota's other trucks due to Toyota's failure to add [enough?] rust inhibitor/preventative to the molten steel when forming the frame for many models of their trucks.
NHTSA ODI #11438485
Mileage unknown · Jul 9, 2021
StructureSuspensionUnknown Or Other
After having my 4 runner in for routine maintenance, my mechanic informed me that my frame was in bad condition and rusting through. Doubtful it has a year left and he advised me to junk it as fast as I can. 180;000 miles - so much for Toyota’s lasting a long time.
NHTSA ODI #11424088
66,000 miles · Oct 22, 2020
Suspension
FRAME IS RUSTED. DEEMED UNSAFE TO DRIVE
NHTSA ODI #11365850
295,000 miles · Sep 15, 2020
Suspension
THE VEHICLE IS IN IMPECCABLE CONDITION. THE FRAME IS RUSTED THROUGH IN THE AREA OF THE PASSENGER SIDE ABOVE THE TRAILING ARMS AND THE MIDDLE SECTION OF THE RAIL. I BOUGHT THE VEHICLE IN 2006 AND HAVE BABIED THE VEHICLE.
NHTSA ODI #11355215
166,000 miles · Sep 5, 2020
SuspensionUnknown Or Other
I FOUND FRAME RUST WITH PERFORATION ON MY 02 TOYOTA 4RUNNER
NHTSA ODI #11353316
146,000 miles · Mar 12, 2020
Service BrakesSuspensionUnknown Or Other
WHEN I HAD MY STATE INSPECTION IN JANUARY OF 2020, THE MACHANIC TOLD ME THE FRAME OF THE VEHICLE WILL NOT PASS INSPECTION AGAIN. IT IS SEVERELY RUSTED THROUGH AND IN HIS OPINION IS UNSAFE TO DRIVE. A FEW WEEKS LATER, I WAS TRAVELLING TO MY FATHER'S RESIDENCE AND THE BRAKES GAVE OUT. THE TECHNICIAN THAT REPAIRED MY BRAKE LINE ALS…
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WHEN I HAD MY STATE INSPECTION IN JANUARY OF 2020, THE MACHANIC TOLD ME THE FRAME OF THE VEHICLE WILL NOT PASS INSPECTION AGAIN. IT IS SEVERELY RUSTED THROUGH AND IN HIS OPINION IS UNSAFE TO DRIVE. A FEW WEEKS LATER, I WAS TRAVELLING TO MY FATHER'S RESIDENCE AND THE BRAKES GAVE OUT. THE TECHNICIAN THAT REPAIRED MY BRAKE LINE ALSO TOLD ME AND DOCUMENTED ON THE BILL THAT THE TRUCK IS REALLY NOT SAFE TO DRIVE. I HAVE OWNED THIS VEHICLE FOR 18 YEARS, AND ONLY DRIVEN IT FIVE WINTERS. I WASH THE TRUCK NUMEROUS TIMES DURING THE WINTER TO REMOVE SALT. IT IS MY ONLY VEHICLE, AND I CANNOT AFFORD A NEW ONE. WHY WASN'T THIS INCLUDED IN THE FRAME RECALL FROM TOYOTA?!? NOW I'M NERVOUS ABOUT MY SAFETY AND THOSE ON THE ROADWAYS.
NHTSA ODI #11317745
Mileage unknown · Jan 16, 2020
Service BrakesSteeringSuspension
I HAVE A 2002 TOYOTA 4RUNNER WITH A SEVERELY RUSTED FRAME. MY VEHICLE HAS LESS THAN 70K ORIGINAL MILES ON IT, NO BODY RUST, BUT AN EXTREMELY RUSTED UNDERCARRIAGE AND FRAME. I FEEL IT IS UNSAFE TO CONTINUALLY DRIVE WITH THIS PROBLEM, AS IT WILL ONLY GET WORSE AND COULD AFFECT OTHER COMPONENTS SUCH AS STEERING, SUSPENSION, BRAKES,…
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I HAVE A 2002 TOYOTA 4RUNNER WITH A SEVERELY RUSTED FRAME. MY VEHICLE HAS LESS THAN 70K ORIGINAL MILES ON IT, NO BODY RUST, BUT AN EXTREMELY RUSTED UNDERCARRIAGE AND FRAME. I FEEL IT IS UNSAFE TO CONTINUALLY DRIVE WITH THIS PROBLEM, AS IT WILL ONLY GET WORSE AND COULD AFFECT OTHER COMPONENTS SUCH AS STEERING, SUSPENSION, BRAKES, ETC. SEEING AS HOW TOYOTA HAS ALREADY HAD A CLASS ACTION LAWSUIT AGAINST THEIR TRUCKS OF THE SAME YEAR FOR UNSAFE RUSTED FRAMES, I FEEL MY 4RUNNER SHOULD BE INCLUDED IN THE FRAME REPLACEMENT RECALL.
NHTSA ODI #11299973
Mileage unknown · May 16, 2019
StructureSuspensionUnknown Or Other
RIGHT FRAME RAIL IS VERY RUSTED TO THE POINT OF NON REPAIR. UNABLE TO REPAIR SUSPENSION DUE TO UNABLE TO REMOVE BOLTS THAT HOLD SUSPENSION TO FRAME.
NHTSA ODI #11208039
NHTSA investigations
1DP18002 · Frame Corrosion
Opened Aug 17, 2018 · Closed Mar 18, 2022
Status: closed (inferred from source dates) · Structure:frame And Members
On August 7, 2018, the Office of Defects Investigation (ODI) received a defect petition from Mr. Gary Weinreich alleging premature frame corrosion failure in model year (MY) 2002 - 2006 Toyota 4Runner vehicles. The petitioner based his request upon a corrosion-related front suspension failure he experienced in his MY 2005 Toyota 4Runner, a class action lawsuit settlement involving other Toyota products, and other complaints of underbody corrosion in Toyota 4Runner vehicles that he found in NHTSA?s online complaint database. The petitioner submitted a complaint to NHTSA documenting his experience (NHTSA ID 11098055). On August 17, 2018, ODI opened DP18-002 to evaluate the petitioner?s request. ODI?s evaluation included information provided by the petitioner regarding his vehicle, facts related to the class action lawsuit cited by the petitioner, and consumer complaint data received by NHTSA regarding underbody corrosion in third and fourth-generation Toyota 4Runner vehicles.The undercarriage of the petitioner?s vehicle exhibited severe corrosion damage indicative of seawater immersion. The vehicle?s service history shows that concerns with underbody corrosion were first noted by a Toyota dealer in a multi-point vehicle inspection performed on April 28, 2011. The invoice for that inspection noted ?severe and excessive amount of rust on the undercarriage and on the drive shaft transmission.? Two years later, on October 21, 2013, another multi-point inspection by a Toyota dealer observed further progression of underbody corrosion damage, noting: ?rust on shocks/struts and other components,? ?rust on exhaust system,? ?both splash shields severely rusted,? and ?undercarriage very rusty.? On July 17, 2017, approximately 10 months prior to experiencing the suspension failure incident, an independent repair facility performing routine oil change and brake maintenance informed the Petitioner of a concern with ?excessive frame corrosion? on his vehicle. The service history, severe general corrosion damage, failure age, and environment do not support the petitioner?s allegation of premature corrosion failure.ODI?s analysis of NHTSA complaint data identified fifteen incidents of front lower control arm failure in fourth-generation Toyota 4Runner sport utility vehicles. Two of the failures, including the petitioner?s vehicle, involve vehicles operated in ocean front communities with continuous exposure to aerosolized marine salts and potential exposure to seawater immersion. The remaining thirteen failures all involved vehicles owned or previously registered in states with the greatest use of deicing salts to treat road surfaces in winter months (?Salt states?). On average, the front lower control arm failures occurred after 13.1 years in service in highly corrosive environments. The failure ages and environments do not support the petitioner?s allegation of premature corrosion failure. NHTSA is authorized to issue an order requiring notification and remedy of a defect if the Agency?s investigation shows a defect in design, construction, or performance of a motor vehicle that presents an unreasonable risk to safety. 49 U.S.C. ?? 30102(a)(9), 30118. Since the information before the Agency is not indicative of a vehicle-based defect, it is unlikely that any investigation opened because of granting this petition would result in an order concerning the notification and remedy of a safety-related defect. Therefore, upon full consideration of the information presented in the petition and the potential risks to safety, the petition is denied. The denial of this petition does not foreclose the Agency from taking further action if warranted or the p
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