NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
192 reports102,000 miles · Sep 14, 2015
SuspensionUnknown Or Other
AFTER BUYING THIS VEHICLE I WAS UNDERNEATH VEHICLE TO REPAIR A AXLE SEAL LEAKING AND FOUND EXTENSIVE FRAME RUST ON PASSENGER REAR OF FRAME. BY EXTENSIVE I MEAN THE FRAME WAS RUSTED COMPLETELY THROUGH! I HAVE LIVED IN OHIO ALL OF MY LIFE AND HAVE NEVER SEEN A VEHICLE WITH THIS MILEAGE AND OF THIS YEAR HAVE SUCH SEVERE FRAME RUS…
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AFTER BUYING THIS VEHICLE I WAS UNDERNEATH VEHICLE TO REPAIR A AXLE SEAL LEAKING AND FOUND EXTENSIVE FRAME RUST ON PASSENGER REAR OF FRAME. BY EXTENSIVE I MEAN THE FRAME WAS RUSTED COMPLETELY THROUGH! I HAVE LIVED IN OHIO ALL OF MY LIFE AND HAVE NEVER SEEN A VEHICLE WITH THIS MILEAGE AND OF THIS YEAR HAVE SUCH SEVERE FRAME RUST! AFTER FURTHER INSPECTION I NOTICED REAR END HOUSING WAS ALSO SEVERELY RUSTED. THE RUST ON THE FRAME IS SEVERELY PERFORATED AT POINT WHERE TRAILING ARM FOR THE REAR END ATTACHES TO THE FRAME! I WAS NOT AWARE OF THIS ISSUE BEFORE BUYING VEHICLE BUT AFTER SOME RESEARCH HAVE FOUND THAT THIS IS DEFINITELY A MANUFACTURER DEFECT OF SOME SORT! THESE VEHICLES ARE NOT SAFE TO DRIVE WITH THESE FRAMES IN THIS CONDITION AND TOYOTA IS AWARE OF THIS!
NHTSA ODI #10763756
92,000 miles · Sep 10, 2015
Unknown Or Other
TOOK VEHICLE FOR INSPECTION, WAS TOLD IT NEEDED TO BE WELDED. TOOK IT TOOK A WELDING SHOP, THAT DOES THIS TYPE OF WORK. WE WERE THEN TOLD BY THE GENTLEMEN DOING THE WORK THAT IT WAS THE FRAME UNDER THE VEHICLE AND DIDN'T FEEL COMFORTABLE. BECAUSE HE HAS HEARD OF ISSUES WITH 4RUNNER RUSTING ISSUES AND SAID IT WOULD COST THOUS…
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TOOK VEHICLE FOR INSPECTION, WAS TOLD IT NEEDED TO BE WELDED. TOOK IT TOOK A WELDING SHOP, THAT DOES THIS TYPE OF WORK. WE WERE THEN TOLD BY THE GENTLEMEN DOING THE WORK THAT IT WAS THE FRAME UNDER THE VEHICLE AND DIDN'T FEEL COMFORTABLE. BECAUSE HE HAS HEARD OF ISSUES WITH 4RUNNER RUSTING ISSUES AND SAID IT WOULD COST THOUSANDS OF DOLLARS TO FIX IT. HE KNEW WE DIDN'T HAVE THE FUNDS TO SPEND THAT KIND OF MONEY. WE HAVE SOMEONE ELSE WHO SAW A PHOTO OF IT AND STATED JUST FROM THE PICTURES IT WOULD BE OVER $2,000 TO FIX IT. WE FEEL THAT TOYOTA SHOULD RECALL THIS. JUST BECAUSE IT WASN'T MANUFACTURED IN THE UNITED STATES THEN IN JAPAN. NOT A HAPPY CUSTOMER.
NHTSA ODI #10762899
Mileage unknown · Sep 9, 2015
Structure
FRAME RUSTED UNDER 4 RUNNER AND ON BUMPER TOLD BY PERSON WORKING ON SWAY BAR LINKS. STATED EXCESSIVE RUST ON FRAME AND REAR AXLE.
NHTSA ODI #10762726
180,000 miles · Sep 4, 2015
StructureUnknown Or Other
FRAME HAS EXCESSIVE RUST AND HAS HOLES IN PARTS OF IT. THE REST OF THE BODY AND INTERIOR ARE IN GREAT CONDITION. ENGINE RUNS WELL AND THERE ARE OTHERWISE NO MAJOR MECHANICAL ISSUES. UPON HAVING A MINOR REPAIR DONE, INSPECTION SHOWED THAT THE VEHICLE WAS UNSAFE TO DRIVE WITH THE FRAME IN THAT CONDITION AS IT IS ABOUT TO CRACK IN…
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FRAME HAS EXCESSIVE RUST AND HAS HOLES IN PARTS OF IT. THE REST OF THE BODY AND INTERIOR ARE IN GREAT CONDITION. ENGINE RUNS WELL AND THERE ARE OTHERWISE NO MAJOR MECHANICAL ISSUES. UPON HAVING A MINOR REPAIR DONE, INSPECTION SHOWED THAT THE VEHICLE WAS UNSAFE TO DRIVE WITH THE FRAME IN THAT CONDITION AS IT IS ABOUT TO CRACK IN HALF. THIS SEEMS TO BE PREMATURELY FAILING COMPARED TO THE REST OF THE VEHICLE.
NHTSA ODI #10761742
120,000 miles · May 14, 2015
SteeringStructure
TL* THE CONTACT OWNS A 2002 TOYOTA 4RUNNER. THE CONTACT INSPECTED THE VEHICLE AND DISCOVERED THAT THE ENTIRE REAR END OF THE FRAME COMPLETELY RUSTED. IN ADDITION, THE RACK AND PINION WAS FAULTY AND REPLACED BY AN INDEPENDENT MECHANIC. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILRUE MILEAGE WAS 120,000.
NHTSA ODI #10716412
142,059 miles · May 3, 2015
Unknown Or Other
THE ENTIRE FRAME AND OTHER PARTS OF THE UNDERBODY ARE RUSTED. THE BRAKES BOTH FRONT AND BACK WERE ALSO RUSTED. I PULLED OFF FROM THE HIGHWAY AND STOPPED TO PICKUP MY DOGS. WHEN I TRIED TO LEAVE MY BRAKES WERE GONE. WHEN THE CAR WAS TOWED TO MY MECHANIC HE SAID BOTH FRONT AND REAR BRAKE LINES WERE RUSTED THROUGH AND HAD TO BE REP…
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THE ENTIRE FRAME AND OTHER PARTS OF THE UNDERBODY ARE RUSTED. THE BRAKES BOTH FRONT AND BACK WERE ALSO RUSTED. I PULLED OFF FROM THE HIGHWAY AND STOPPED TO PICKUP MY DOGS. WHEN I TRIED TO LEAVE MY BRAKES WERE GONE. WHEN THE CAR WAS TOWED TO MY MECHANIC HE SAID BOTH FRONT AND REAR BRAKE LINES WERE RUSTED THROUGH AND HAD TO BE REPLACED. I COULD HAVE BEEN KILLED. HE ALSO SAID THAT THE FRAME IS RUSTED AND IS DANGEROUS TO DRIVE. I AM AFRAID TO DRIVE THIS CAR. *TR
NHTSA ODI #10714231
115,000 miles · Apr 28, 2015
Suspension
THE FRAME ON THE 2002 4-RUNNER HAS COMPLETELY CORRODED AND CAUSED THE TOYOTA DEALERSHIP TO DEEM THE VEHICLE UNSAFE FOR DRIVING. EVEN THOUGH THIS A RECOGNIZED DESIGN FAILURE, TOYOTA REFUSES TO COVER THE COST OF REPLACEMENT. TOYOTA HAS RECALLED TUNDRA MODELS FOR THIS DEFECT, BUT REFUSES TO ACKNOWLEDGE THE 4-RUNNER DESIGN FLAW SIN…
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THE FRAME ON THE 2002 4-RUNNER HAS COMPLETELY CORRODED AND CAUSED THE TOYOTA DEALERSHIP TO DEEM THE VEHICLE UNSAFE FOR DRIVING. EVEN THOUGH THIS A RECOGNIZED DESIGN FAILURE, TOYOTA REFUSES TO COVER THE COST OF REPLACEMENT. TOYOTA HAS RECALLED TUNDRA MODELS FOR THIS DEFECT, BUT REFUSES TO ACKNOWLEDGE THE 4-RUNNER DESIGN FLAW SINCE IT WAS MANUFACTURED COMPLETELY AT THEIR HINO JAPAN PLANT. *TR
NHTSA ODI #10713384
194,000 miles · Apr 24, 2015
SteeringSuspension
VEHICLE BUCKED AND SWAYED AS REAR FRAME SEPARATED AT THE JOINT ON DRIVER SIDE WAS UNAWARE OF ISSUE BEFORE THIS TRIED TO FIND SWAY BAR ISSUE IT WAS SPOTTED AT A DISTANCE BY COWORKER. *TR
NHTSA ODI #10712754
60,000 miles · Mar 24, 2015
Power TrainStructureSuspension
THE FRAME IS RUSTING ALMOST IN TWO. LOOKS LIKE IT COULD BREAK ANY TIME. REAR AXEL IS ALSO VERY RUSTED WITH PIECES FALLING OFF. *TR
NHTSA ODI #10701395
99,000 miles · Mar 12, 2015
Structure
2002 TOYOTA 4 RUNNER SR5, 98,000 MILES. ALWAYS DEALER SERVICED. THIS WILL BE MY LAST STATE NYS INSPECTION AS I WILL BE UNABLE TO HAVE THE TRUCK INSPECTED IN 2015 DUE TO BODY FRAME ROT, NEED TO INCUR COSTS TO REPLACE BODY FRAME. TRUCK IS IN EXCELLENT CONDITION WITH THE EXCEPTION OF FRAME ROT. HAVE ALSO REPLACED THE BUMPER, T…
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2002 TOYOTA 4 RUNNER SR5, 98,000 MILES. ALWAYS DEALER SERVICED. THIS WILL BE MY LAST STATE NYS INSPECTION AS I WILL BE UNABLE TO HAVE THE TRUCK INSPECTED IN 2015 DUE TO BODY FRAME ROT, NEED TO INCUR COSTS TO REPLACE BODY FRAME. TRUCK IS IN EXCELLENT CONDITION WITH THE EXCEPTION OF FRAME ROT. HAVE ALSO REPLACED THE BUMPER, THE GAS TANK SHIELD AND HAVE BEEN TOLD FRONT OIL PAN SHIELD NEEDS REPLACING AS DEALER CAN NOT PERFORM OIL CHANGE, DUE TO THIS PROBLEM. I HAVE CONTACTED TOYOTA WAITING FOR A REPLY. *TR
NHTSA ODI #10693770
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