There are 7 owner-reported body & structure complaints for the 2012 Toyota FJ Cruiserin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Noticed rust on suv/frame confirmed by Faulkner Toyota Dealership, mechanic informed too address this problem soon.
Excessive underbody and frame rust.
GENERAL PERSONAL USE. FRAME IS RUSTING AT AN ALARMING RATE. I FEEL IT IS CRUCIAL FOR ME TO GET THE EXISTING RUST REMOVED AND THE FRAME PROTECTED IF I WANT THIS VEHICLE TO LAST ME A REASONABLE AMOUNT OF YEARS WITHOUT ANY STRUCTURAL FAILURES. IT HAS A LITTLE OVER 100K MILES ON IT.
I AM ONE OF THE MANY WHO ARE EXPERIENCING RUST PROBLEMS WITH MY FJ. RECENTLY HAD TO HAVE ALL CALIPERS REPLACED DUE TO RUST. OIL PAN COVER AND COMPONENTS AROUND IT ARE STARTING TO SHOW SIGNIFICANT RUST. RUST IS IN THE EARLY STAGES IN SEVERAL AREAS OF THE FRAME BUT VERY EARLY STAGES. I AM CONCERNED THAT THE RUST WILL BEGIN TO AFFECT THE SAFETY OF THE VEHICLE.
EXCESSIVE RUST ON THE UNDERSIDE OF CAR - ALL OVER THE FRAME AND AXELS
Frame and undercarriage compromised by excessive rust on 2012 Toyota FJ Cruiser. Substandard materials/process used in manufacturing by Toyota on the FJ cruiser undercarriage and frame, causing excessive rust damage. Widespread problem in the United States with excessive rust compromising the stability and safety of the vehicles. Toyota authorized Dealerships are no help. Expect consumers to pay out of pocket to repair frame.
TL* THE CONTACT OWNS A 2012 TOYOTA FJ CRUISER. THE CONTACT STATED THAT THERE WAS A WHEEL CHAIR LIFT INSTALLED IN THE VEHICLE AND WHEN IT WAS BEING UTILIZED, THE REAR BUMPER WOULD SINK TWO INCHES. THE FRONT END OF THE VEHICLE WOULD RISE BY TWO INCHES. THE TOTAL WEIGHT FOR THE WHEEL CHAIR LIFT AND THE WHEEL CHAIR WAS 300 POUNDS. THE WEIGHT CAPACITY FOR THE VEHICLE WAS LABELED AS 500 POUNDS. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION HOWEVER NO ASSISTANCE WAS OFFERED. THE FAILURE WAS REPORTED TO THE MANUFACTURER. THE FAILURE MILEAGE WAS 41. THE CURRENT MILEAGE WAS 3,600.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026