Problems · by component

1999 Toyota 4Runner suspension problems

66 owner complaints to NHTSA about the 1999 Toyota 4Runner cite suspension, 20% of all 332 complaints for this model year.

Complaints
66
20% of all complaints
Crashes
5
Reported by owners
Fires
0
Reported by owners
Injuries
4
Reported by owners
01 —Owner reports

What owners say about the suspension

Verbatim from NHTSA complaints, newest first
“The frame above the RT rear tire has rusted completely through. It's where the rear end bolts to the frame, at a wedge welded to the frame with bolt holes in it. It's like it wants to flip over and darts left or right every time there's a dip or rough spot in the road. I chained it and put a tow strap around everything I could to keep the rear end from coming out & killing me or someone behind me”
Owner complaint to NHTSAFiled Jun 25, 2023SuspensionODI 11528720
“The contact's wife owns a 1999 Toyota 4Runner. The contact stated that while his daughter was driving at a slow speed, the back end of the vehicle began to wobble. The contact stated that his daughter pulled the vehicle into a parking lot and had the vehicle towed to the contact's home. The vehicle was inspected and severe corrosion was discovered on the driver's side rear lower control arm mount. The dealer was notified of the failure and informed him that there are no recalls on the vehicle. The manufacturer was also notified of the failure and the contact was given the same information as the dealer. The vehicle had yet to be repaired. The failure mileage was approximately 240,000.”
Owner complaint to NHTSAFiled Sep 30, 2022SuspensionODI 11487184
“Over the years of ownership, my vehicle has been overwhelmed with rust issues. All four axles are rusted to include the brake components. I didn't realize how bad the rusting was until I heard "popping" noise when making turns The rear suspension sway bar link was rusted so bad, it broke free. I had the rack and pinion replaced in August of 2020 because rust ate through the lines. The frame appears to have separations due to rust as well.”
Owner complaint to NHTSAFiled Jun 14, 2021Steering, Suspension, Service brakesODI 11420795
“MY VEHICLE IS VERY CLEAN AND WELL MAINTAINED AND HAD NO INDICATION OF TROUBLE OR HANDLING ISSUES. A REPAIR SHOP WAS TAKING IT BACK TO FIX AN EXHAUST PROBLEM WHEN HE NEARLY LOST CONTROL. I COULDN'T BELIEVE IT WHEN HE NOTIFIED ME IT WAS UNSAFE TO DRIVE, BUT FOUND OUT THAT ONE SECTION OF THE FRAME HAD TOTALLY RUSTED THROUGH WHERE THE AXLE LINK MOUNTS TO THE FRAME. IT COULD HAVE TORN THE AXLE OUT FROM UNDER THE VEHICLE WITH NO PREVIOUS WARNING. I HAD BEEN DRIVING ON 4 LANE INTERSTATE AT 70 JUST DAYS BEFORE WITH NO HANDLING ISSUES AT ALL. I PERSONALLY HAVE CHANGED THE OIL AND GREASED THE DRIVE TRAIN ALL BUT ONCE OVER THE PAST FIVE YEARS AND NOT NOTICED THIS SMALL AREA OF SEVERE RUST THROUGH. I HAVE ALSO SPENT OVER $3000 ON EXHAUST, TIRES, AND MAINTENANCE REPAIR OVER THE PAST YEAR BECAUSE I THOUGHT IT WAS WORTHY OF 5-10 MORE YEARS AND 100,000 MORE MILES. MY 2001 CAMRY IS DRIVEN BY MY SON NOW AND HAS APPROXIMATELY 390,000 MILES ON IT. I JUST SOLD MY 1994 JEEP CHEROKEE WITH OVER 300,000 MILES ON IT AND THIS 4RUNNER BODY IS IN MUCH BETTER CONDITION THAN THOSE AND THAT WAS WHY I EXPECTED THIS WOULD TOO. THIS IS DEFINITELY A WEAK SPOT HARD TO DETECT BECAUSE MYSELF AND 3…”
Owner complaint to NHTSAFiled Oct 17, 2020SuspensionODI 11364832
“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”
Owner complaint to NHTSAFiled Aug 2, 2020Steering, Suspension, StructureODI 11342840
“THE MOUNT FOR THE REAR LOWER CONTROL ARM HAS RUSTED OFF. THIS IS CAUSING THE CAR TO VIOLENTLY ROCK BACK AND FOURTH AFTER HITTING A POT HOLE AND CONTINUE FOR A FEW SECONDS AFTER. IT IS VERY UNNERVING AND OBVIOUSLY A MATER SAFETY ISSUE. I HAVE ALSO SEEN SIMILAR COMPLAINTS ON WEBSITES SUCH AS T4R.ORG. PLEASE GIVE ME A CALL [XXX].”
Owner complaint to NHTSAFiled May 12, 2019Suspension, StructureODI 11207111

Showing 6 of 66 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.

Other 1999 4Runner problem areas