IllustrationTHE FRAME OF THE VEHICLE IS ROTTING OUT WITH RUST. THE 4RUNNER HAS NEVER BEEN IN SNOW AND HAS BEEN TAKEN WELL CARE OF AND THE FRAME IS STILL ERODING AWAY WITH RUST AT AN UNNATURAL RATE. THIS ISSUE MUST BE ADDRESSED FOR THE SAKE OF SO MANY UNAWARE OWNERS!
2002 Toyota 4RUNNER
Owner reports · Recalls · Investigations
More warning signs than most 4RUNNER years
Owner complaints for the 2002 Toyota 4RUNNER are substantially higher than the model-year median of 58.
About this comparison →How this year compares
Owner complaints by model year
Compare all 4RUNNER years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
40–25K
325–50K
1550–75K
1375–100K
57100–150K
54150K+
146 reports with mileage · 46 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Structure. Review the 88 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Suspension. Review the 43 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 29 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
12 crash reports2 fire reports9 injury reports
What owners actually said
192 reportsI VISITED A TOYOTA DEALERSHIP FOR ROUTINE MAINTENANCE (OIL CHANGE) AND INSPECTION OF 4 WHEEL DRIVE SYSTEM. AFTER THE VEHICLE WAS RAISED ON THE LIFT, THE SERVICE ADVISOR ASKED ME TO JOIN HIM AND THE SHOP MECHANIC IN THE SERVICE BAY WHERE I WAS SHOWN THAT THE FRAME / CHASSIS OF THE VEHICLE HAS RUSTED THE POINT WHERE IN THEIR OPIN…
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I VISITED A TOYOTA DEALERSHIP FOR ROUTINE MAINTENANCE (OIL CHANGE) AND INSPECTION OF 4 WHEEL DRIVE SYSTEM. AFTER THE VEHICLE WAS RAISED ON THE LIFT, THE SERVICE ADVISOR ASKED ME TO JOIN HIM AND THE SHOP MECHANIC IN THE SERVICE BAY WHERE I WAS SHOWN THAT THE FRAME / CHASSIS OF THE VEHICLE HAS RUSTED THE POINT WHERE IN THEIR OPINION IT WAS NO LONGER SAFE TO OPERATE. AFTER CLOSE INSPECTION, I HAD AGREED WITH THEIR ASSESSMENT. AN ONLINE SEARCH FOR A RECALL NOTICE WAS PERFORMED, BUT NONE WAS FOUND. OTHERWISE, THIS VEHICLE IS IN METICULOUS CONDITION WITH NO BODY DAMAGE OR RUST OR ANY MECHANICAL PROBLEMS.
FRAME IS RUSTED THROUGH ON RIGHT SIDE FROM MIDDLE OF THE FRAME TO JUST OVER THE REAR AXEL. THERE ARE LARGE HOLES AND RUSTED SLOTS THAT ARE OVER 10 INCHES LONG DAMAGE STARTS BEFORE THE REAR SUSPENSHION SUPPORT AND CONTINUES TO THE OTHER SIDE AND THE SIDE WHERE THE RUST HAS CAUSED HOLES AND LONG SLOTS THE WHOLE FRAME CAN BE SQUEEZ…
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FRAME IS RUSTED THROUGH ON RIGHT SIDE FROM MIDDLE OF THE FRAME TO JUST OVER THE REAR AXEL. THERE ARE LARGE HOLES AND RUSTED SLOTS THAT ARE OVER 10 INCHES LONG DAMAGE STARTS BEFORE THE REAR SUSPENSHION SUPPORT AND CONTINUES TO THE OTHER SIDE AND THE SIDE WHERE THE RUST HAS CAUSED HOLES AND LONG SLOTS THE WHOLE FRAME CAN BE SQUEEZED EASILY WITH YOUR HAND.
RUST THROUGH ON THE FRAME.
I HAVE A 2002 TOYOTA 4 RUNNER THAT WAS TAKEN IN FOR YEARLY STATE INSPECTION AND THE TECHNICIAN INFORMED THAT THE FRAME IS ROTTED THROUGH. HE STATED THAT THE VEHICLE WAS UNSAFE TO DRIVE AND A REJECTION STICKER HAS BEEN PLACED ON THE VEHICLE. NOT SURE WHAT TO DO NOW. THE VEHICLE STILL LOOKS AND RUNS VERY WELL, BUT UNABLE TO DRI…
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I HAVE A 2002 TOYOTA 4 RUNNER THAT WAS TAKEN IN FOR YEARLY STATE INSPECTION AND THE TECHNICIAN INFORMED THAT THE FRAME IS ROTTED THROUGH. HE STATED THAT THE VEHICLE WAS UNSAFE TO DRIVE AND A REJECTION STICKER HAS BEEN PLACED ON THE VEHICLE. NOT SURE WHAT TO DO NOW. THE VEHICLE STILL LOOKS AND RUNS VERY WELL, BUT UNABLE TO DRIVE.
FRAME RUSTED THROUGH. THERE IS A HOLE IN FRAME BECAUSE OF RUST.
VEHICLE WAS STATIONARY. WHILE REPLACING EXHAUST SYSTEM COMPONENTS. FOUND WHAT APPEARED TO BE MINOR RUST ON THE PASSENGER (RIGHT) SIDE REAR SUSPENSION MOUNT. FURTHER INVESTIGATION UNCOVERED A LARGER AREA OF RUST ALONG THE 3 WELDS ON THE INNER FRAME RAIL. CUT / GROUND THE METAL BACK TO GOOD METAL AND AM IN THE PROCESS OF PATCHING …
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VEHICLE WAS STATIONARY. WHILE REPLACING EXHAUST SYSTEM COMPONENTS. FOUND WHAT APPEARED TO BE MINOR RUST ON THE PASSENGER (RIGHT) SIDE REAR SUSPENSION MOUNT. FURTHER INVESTIGATION UNCOVERED A LARGER AREA OF RUST ALONG THE 3 WELDS ON THE INNER FRAME RAIL. CUT / GROUND THE METAL BACK TO GOOD METAL AND AM IN THE PROCESS OF PATCHING FOR MY YEARLY MAINE VEHICLE INSPECTION. EITHER TOYOTA HAS BUILT AN INFERIOR FRAME OR THE NEWER CHEMICALS BEING USED TO KEEP THE ROADS CLEAR IN THE WINTER TO BE THE CAUSE OF THIS RUST WHICH COULD CAUSE THE REAR SUSPENSION TO FAIL AT THIS POINT IN THE FRAME AND CAUSE A ACCIDENT.
FRAME AND SOME SUSPENSION PARTS ARE VERY RUSTED, FRAME HAS HOLES AND IS BECOMING UNSAFE TO DRIVE. VEHICLE IS ONLY 13 YEARS OLD, ONLY 100100 MILES. PASSENGER SIDE FRONT SUSPENSION POP'S WHEN STRESSED IN CORNERING. WHEN AT IDLE, YOU CAN HEAR THE VIBRATION FROM RUST CHUNKS IN THE FRAME. ALL HEAT SHIELDS RUSTED. SKID PLATES ON …
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FRAME AND SOME SUSPENSION PARTS ARE VERY RUSTED, FRAME HAS HOLES AND IS BECOMING UNSAFE TO DRIVE. VEHICLE IS ONLY 13 YEARS OLD, ONLY 100100 MILES. PASSENGER SIDE FRONT SUSPENSION POP'S WHEN STRESSED IN CORNERING. WHEN AT IDLE, YOU CAN HEAR THE VIBRATION FROM RUST CHUNKS IN THE FRAME. ALL HEAT SHIELDS RUSTED. SKID PLATES ON FRONT AND FUEL TANK SO RUSTED MUST REMOVE. NOW NOTHING IS PROTECTING THE FUEL TANK.
MY FRAME IS ROTTING OUT. I JUST HAD TO REPLACE MY REAR AXLE BECAUSE IT HAD ALMOST ROTTED THROUGH. IT WAS ACTUALLY WEAPING GEAR OIL OUT OF SMALL HOLES THROUGH THE ROT. SOME OF THE FRAME HAD TO BE WELDED TO PASS INSPECTION.
TL* THE CONTACT OWNS A 2002 TOYOTA 4RUNNER. THE CONTACT STATED THAT THE REAR TRAILING ARM ON THE VEHICLE PREMATURELY DETERIORATED AND FRACTURED. THE VEHICLE WAS TOWED TO THE CONTACT'S RESIDENCE AND THEN TOWED TO AN INDEPENDENT MECHANIC. WHO DIAGNOSED THAT THE REAR END HOUSING AND AXLE DIFFERENTIAL NEEDED TO BE REPLACED. THE VEH…
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TL* THE CONTACT OWNS A 2002 TOYOTA 4RUNNER. THE CONTACT STATED THAT THE REAR TRAILING ARM ON THE VEHICLE PREMATURELY DETERIORATED AND FRACTURED. THE VEHICLE WAS TOWED TO THE CONTACT'S RESIDENCE AND THEN TOWED TO AN INDEPENDENT MECHANIC. WHO DIAGNOSED THAT THE REAR END HOUSING AND AXLE DIFFERENTIAL NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 64,000. UPDATED 11/20/15*LJ THE CONSUMER STATED THE VEHICLE SHOULD NOT HAVE TO BE REPAIRED AT THE OWNER'S EXPENSE. THE REAR DIFFERENTIAL HAD TO BE REPLACED. THE FRAME OF THE WAS ALSO BADLY RUSTED. UPDATED 2.3.16 *JS *CN
Official recalls
105V225000 · Suspension:front:control Arm:lower Ball Joint
May 17, 2005
ON CERTAIN SPORT UTILITY VEHICLES, DUE TO A MANUFACTURING ISSUE IN THE FRONT SUSPENSION LOWER BALL JOINT, THERE IS A POSSIBILITY THAT THE SURFACE OF THE BALL OF THE JOINT MAY HAVE BEEN SCRATCHED. THE BALL JOINT MAY EVENTUALLY EXPERIENCE EXCESSIVE WEAR AND LOOSENESS, RESULTING IN INCREASED STEERING EFFORT.
Consequence & remedy
Consequence: THE LOWER BALL JOINT MAY SEPARATE FROM THE KNUCKLE CAUSING LOSS OF STEERING CONTROL AND A CRASH COULD OCCUR.
Remedy: DEALERS WILL REPLACE THE FRONT SUSPENSION LOWER BALL JOINTS FREE OF CHARGE. THE RECALL BEGAN ON JULY 5, 2005. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
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