Problems · by component
1999 Toyota 4Runner structure problems
112 owner complaints to NHTSA about the 1999 Toyota 4Runner cite structure, 34% of all 332 complaints for this model year.
Complaints
112
34% of all complaints
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
1
Reported by owners
What owners say about the structure
Verbatim from NHTSA complaints, newest first
“The component that is failing is the frame. The vehicle is available for inspection upon request. The safety of myself and others is at risk due to the frame falling apart due to the lack of integrity. The lack of integrity and strength is from oxidation or major rust. The vehicle has not been inspection by a 3rd party. The rust is a common issue in this year/model from other owners and has appeared to be a manufacturing error.”
“MY FRAME IS RUSTED ALMOST TO PIECES. I KNOW THIS IS A COMMON PROBLEM WITH 4RUNNER OF THE SAME YEAR MODELS. AND I HOPE TO GET A RECALL BECAUSE IT'S PUTTING ME AND OTHERS AT RISK OF WRECKING THE CAR AND POSSIBLE INJURIES.”
“I HEARD RUBBING NOISES FROM MY LEFT FRONT WHEEL.I THOUGHT BRAKES BUT WHEN I INSPECTED THE UNDERSIDE OF MY VEHICLE I NOTICED THAT THE RUBBING WAS COMING FROM A RUSTED AND BROKEN OFF BRAKE SHIELD.I AM OLDER WITH BACK ISSUES SO GETTING UNDER THE CAR FOR A GOOD LOOK M IS TOUGH AT BEST.WHAT I COULD SEE USING A RIGID SEESNAKE BOROSCOPE WAS EXTENSIVE RUST .RUST ALL OVER KEY STRUCTURAL FRAME COMPONENTS FROM MOTOR MOUNTS TO STEERING LINKAGE THE CHASSIS IN SOME AREAS HAS COMPLETELY DISAPPEARED.LOOKING AT THE BODY YOU WOULD THINK THE CAR WAS IN REALLY GOOD SHAPE BUT NOT UNDERNEATH.TOYOTA DIDN'T HAVE 4RUNNERS AS PART OF THEIR RECALL BUT THEY SHOULD HAVE AS THE 4RUNNER USES THE SAME TRUCK CHASSIS AS THE TACOMAS .I NEED THIS TRUCK AND I NEED IT TO BE SAFE.THANKS FOR LISTENING”
“OUR 4RUNNER WENT IN FOR SHOCKS AND WE WERE TOLD WE HAVE A RUSTED FRAME. WE ONLY HAVE 89,000 MILES ON IT AND WE HAVE KEPT UP WITH ALL MAINTENANCE. THIS VEHICLE STILL HAS LOTS OF LIFE LEFT IN IT AND DISAPPOINTED ABOUT THE FRAME. I HAVE SEEN OTHER REPORTS OF THE SAME PROBLEM WITH 4RUNNERS.”
“MY 1999 4-RUNNER WITH ONLY 89,000 MILES HAS A RUSTED FRAME. IT NEEDS REPAIR OR IT WILL NOT BE DRIVEABLE. I HAVE TAKEN GREAT CARE OF THIS VEHICLE. WENT IN FOR SHOCKS, AND WAS TOLD BY DEALERSHIP THAT THE FRAME HAS RUSTED.”
“I WAS DRIVING MY 4 RUNNER AND IT STARTED TO LIKE IT WAS 'FLOATING' AND 'SWAYING' FRONT TO BACK. I WASN'T FAR FROM HOME SO I PARKED HER. THE NEXT DAY I WAS TAKING MY SON TO SCHOOL AND IT FELT LIKE THE FRONT RIGHT SIDE OF THE CAR DIPPED DOWN. WE WERE MAYBE 20 YDS FROM THE HOUSE SO I PARKED IT. MY HUSBAND DROVE IT TO SEE WHAT WAS WRONG AND HE RAN OFF THE ROAD AND ALMOST ROLLED THE TRUCK. I CALLED OUR MECHANIC AND HE CALLED A ROLL BACK TO PICK IT UP. THE OWNER DROVE IT AND HE RAN OFF THE ROAD AND ALMOST CRASHED. HE LOOKED AT IT AND SAW THE FRAME HAS RUSTED IN HALF.”
Showing 6 of 112 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 11, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.