Front assembly: seat heater/cooler
Risk. If damaged, the copper strand heating element may short circuit, increasing the risk of a fire.
NHTSA has logged 381 owner complaints about the 2006 Toyota 4RUNNER, most often about the structure. It is covered by 5 safety recalls, and for recall 16V-396 the manufacturer reports only 24% of affected cars repaired.

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through September 4, 2026. Updated daily. Photo: Mr.choppers, CC BY-SA 4.0.
381 complaints grouped by the system owners reported.
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Structure | 143 | 3 |
| Suspension | 65 | 4 |
| Power train | 30 | 5 |
| Air bags | 24 | 8 |
| Steering | 22 | 2 |
| Service brakes | 19 | 1 |
| Electrical system | 18 | 3 |
| Vehicle speed control | 17 | 9 |
| Service brakes, hydraulic | 14 | 2 |
| 21 other systems | 88 | 11 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
Risk. If damaged, the copper strand heating element may short circuit, increasing the risk of a fire.
Risk. If the side curtain-shield-air bags deploy unexpectedly, it can increase the risk of occupant injury.
Risk. A STUCK OPEN ACCELERATOR PEDAL MAY RESULT IN VERY HIGH VEHICLE SPEEDS AND MAKE IT DIFFICULT TO STOP THE VEHICLE, WHICH COULD CAUSE A CRASH, SERIOUS INJURY OR…
Risk. A DRIVER MAY OVERLOAD A VEHICLE WHICH MAY INCREASE THE RISK OF A CRASH.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Toyota.
127kmiles, median
Based on the odometer reading in 96 structure complaints. 32% were reported before 100,000 miles.
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the 4RUNNER median. How we score
2006 Toyota 4Runner 4-DR. in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.

Federal investigations that included the 2006 Toyota 4RUNNER, and the recalls they led to.
Recent structure complaints filed with NHTSA, shortened. Personal details are removed.
Frame is rotting away. The tacomas, tundras, sequoia were recalled for this issue. The tacomas frame is very close in design to the 4runner. The main difference is the 4runner uses coil springs whereas the tacoma used leaf springs. Toyota stated that because the 4runner was made in Japan unlike the…
The frame under the car rusted so much that the gas tank literally fell through the frame to the ground. This put my son at risk and fortunately he was able to pull over in a residential area and exit the vehicle. A mechanic and welding company both assessed the vehicle and acknowledged the u…
We took the vehicle in for inspection and it failed due to the exhaust leaks, and more importantly the frame rusting out. We never received the recall notice for this issue. We have owned this vehicle for many years, so there is no reason we would not have been notified for the recall of the frame.…
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.