2000 Toyota 4runner — Known Issues & Recalls

Your truck's frame has rusted through, which was discovered when your daughter noticed the vehicle wobbling over small bumps. Your mechanic found the frame damage severe enough that it cannot be safely repaired. A compromised frame can affect vehicle stability and control, particularly at highway speeds, creating a serious safety risk.

The frame on the front left (passenger) side of your 4Runner has developed rust and rot. While driving on the highway, the frame gave way, nearly causing an accident and leaving your vehicle undriveable. Repairing or replacing a rusted frame is a major structural repair that typically costs thousands of dollars.

Your 4Runner's frame has developed severe rust that makes it unsafe to drive. The owner notes this is a common problem with this model year. The frame may need extensive repair or replacement to restore structural integrity.

When you accelerated at an intersection, your 4Runner jolted and then swerved, making it difficult to stop. Your mechanic found that the frame had broken loose due to rust damage from manufacturing defects rather than normal wear and tear. The frame repair will likely involve welding or frame replacement depending on the extent of the rust damage.

Your 4Runner's sub frame has become completely rusted, according to a mechanic's inspection. This is a structural component that supports major parts of your vehicle. The rust will need to be addressed to maintain your vehicle's safety and integrity, which typically involves either removing rust, treating it, or replacing the affected sub frame sections.

Your truck's frame is rusting severely, and this is a widespread problem affecting many 2000 4Runners—even at lower mileages like yours at 99,000 miles. The frame damage is extensive enough that it may compromise the structural integrity of your vehicle. This is a known issue in the 4Runner community that has persisted for years without a manufacturer resolution. Addressing this would require professional frame inspection and potential frame replacement or rust treatment, which is a major repair.

Your 4Runner experienced a critical safety failure when a defective frame weld caused the rear differential support to separate from the frame while driving at 55-60 mph. This caused severe, uncontrolled swaying of the vehicle and nearly resulted in loss of control. The repair will likely require professional frame welding and inspection of the differential mounting points.

While driving at highway speed, you heard a loud pop and lost control of your vehicle—the rear end swayed dangerously across lanes and you nearly hit other cars. When inspected, the frame had snapped due to rust, and the rear control arm detached from the frame, causing the loss of control. The frame rust was extensive despite no other visible rust on the vehicle. Fixing this would require frame repair or replacement and reattaching or replacing the rear control arm.

Your truck's handling became poor, and your mechanic found that the rear upper control arm brackets on both the passenger and driver sides had rusted through and broken. While driving on the highway at 70 mph, you heard a clunk and the rear of the truck started bouncing and swerving, indicating the rear axle was no longer properly connected to the frame. Your vehicle is now unsafe to drive and will likely need welding repairs to reattach the broken brackets to the frame.

Your 4Runner's frame has developed rust and holes. This is a structural issue that affects the vehicle's integrity and safety. Addressing this will likely require professional inspection to assess the extent of the damage and may involve rust treatment, welding, or frame replacement depending on severity.

Your 4Runner's frame has developed serious rust and structural damage, including soft spots that have caused pieces to break off and fall while driving. The vehicle bounced and went off the road, damaging the front bumper, turn signal, and headlight, and both rear shocks are severely rusted and broken. Even after replacing the shocks, the frame damage is expected to worsen over time, creating a safety hazard for continued driving.

Your 4Runner's spare tire mounting bracket rusted and fell off while driving on the highway, creating a safety hazard. The frame rust issue (known as 'Toyota rot') caused the bracket to fail completely. Fixing this would involve replacing the rusted spare tire carrier bracket and potentially treating or replacing the affected frame section.

Your vehicle's frame has severe rust and corrosion that has weakened it significantly. A mechanic determined the frame is too damaged to be safe to drive. This is a structural integrity issue that affects the overall safety and stability of your vehicle.

Your vehicle's underframe has rusted through and broken, causing severe instability at highway speeds. When driving at 65 mph, your 4Runner suddenly started weaving violently side-to-side, and the problem continues whenever you exceed 45 mph, putting you at risk of losing control. The shop indicated the damage is not repairable, which suggests the structural integrity of your vehicle has been compromised.

Your 4Runner has significant rust damage underneath the frame with extensive welding repairs that make it unsafe to drive. The frame integrity is compromised by corrosion, which affects the structural safety of the vehicle and its steering and suspension systems.

Your 4Runner's frame has severe rust damage that a mechanic determined is unsafe to drive and poses a safety risk. The car lot is attempting repairs using welds and foam, but the vehicle continues to sway dangerously when driven over 45 mph despite repeated repair attempts. The structural integrity is compromised and the vehicle should not be driven in this condition.

A professional inspector found a severe crack running 7 feet along the passenger side frame of this 4Runner, extending across the rear leaf spring shackle support, which made the vehicle unsafe to drive. The damage had been concealed with wire mesh and foam spray. This structural damage compromises the vehicle's integrity and safety.

Your 4Runner's frame has rusted through in multiple locations, particularly where the rear axle is mounted and along the side rails. The suspension arm has rusted severely and broken free from the frame, which affects your vehicle's structural integrity and suspension support. A frame restoration or replacement will be needed to safely repair this damage.

Your airbag warning light started flashing about a month ago, even though your vehicle hasn't been in an accident. You took it to a Toyota dealer, but they couldn't fix it because they can't get the airbag control module part anymore—Toyota Customer Service confirmed this unavailability. Your airbag system may not function properly in a crash until this control module is replaced.

After disconnecting your battery, you found that both front doors and the hatch wouldn't open—either by hand or with the remote. The cause wasn't identified, and the dealer couldn't help. This happened at 200,000 miles.