Most common 2006 Toyota 4Runner problems
Share of the 381 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Toyota 4Runner complaints by model year
Best 4Runner years: 2013, 2017, 2024. Years to avoid: 2025, 2011, 2003, 2004. Compare all years →
2006 Toyota 4Runner recalls (5)
Seats › Front assembly › Seat heater/cooler
Southeast Toyota Distributors, LLC (SET) is recalling certain 2005-2011 4Runner, Highlander, Sequoia, and Sienna, 2005-2010 Avalon and Tundra, 2006-2008 Camry Solara, 2006-2010 Highlander hybrid, 2006-2011 Rav4 and Tacoma, 2007-2010 FJ Cruiser, 2007-2011 Camry hybrid, 2009-2010 Venza, 2010-2012 Prius, 1988-1990 and 2005-2010…
Remedy: SET will notify owners, and dealers will disconnect the seat heaters, free of charge, and refund the purchase price of the seat heater accessory. The recall began on July 14, 2016.
Air bags › Side/window
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2003-2006 Toyota Land Cruiser and Lexus LX470, 2005-2006 Toyota Tundra and Sequoia, 2004-2006 Toyota 4Runner and Lexus GX470 vehicles equipped with side curtain-shield-air bags.
Remedy: Toyota will notify owners, and dealers will replace the air bag control module with one that has improved programming, free of charge. The recall began on December 1, 2016.
Vehicle speed control › Accelerator pedal
Toyota is recalling certain model year 2008 through 2011 Lexus lx570, 2003 through 2009 Toyota 4runner, and 2006 through 2010 rav4 vehicles. The accelerator pedal can get stuck in the wide open position due to its being trapped by an unsecured or incompatible driver's floor mat.
Remedy: The remedy is now available. The safety recall began early April 2011. The remedy will involve modification or replacement of the accelerator pedal and replacement of any Toyota all-weather floor mat.
Equipment › Other › Labels
Gulf states Toyota is recalling certain model year 2005-2010 vehicles for failing to comply with the requirements of federal motor vehicle safety standard no. 110, "tire selection and rims." these vehicles were sold between September 1, 2005 and June 2, 2008 without the requisite load carrying capacity modification labels.
Remedy: Dealers will mail to consumers the corrected label or the customer will have the option for dealers to install the label free of charge. Dealers will also correct the owner's manual.
Equipment › Other › Labels
Southeast Toyota is recalling certain model year 2005-2011 passenger vehicles for failing to comply with the requirements of federal motor vehicle safety standard no. 110, "tire selection and rims." these vehicles were sold without the requisite load carrying capacity modification labels.
Remedy: Dealers will mail to consumers the corrected label or the customer will have the option for dealers to install the label free of charge. The safety recall began on May 27, 2010.
NHTSA defect investigations
Federal safety investigators have looked into 2 possible defects involving the 2006 Toyota 4Runner:
Unintended and Uncontrolled Acceleration
On February 16, 2010, NHTSA's Office of Defects Investigation (ODI) opened RQ10-003 to determine whether the scope of prior Toyota recalls relating to potential unintended acceleration were sufficiently broad, including, among others, Toyota recalls 07E-082, 09V-388, 10V-017, and 10V-023.NHTSA also requested information regarding potential electronic causes of unintended acceleration in Toyota and Lexus vehicles.I.
Frame corrosion
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…
What 2006 Toyota 4Runner owners say
Body & structure all 143 →
The contact owns a 2006 Toyota 4Runner. The contact stated that while driving approximately 25-35 MPH, the control arm detached. The contact was able to drive the vehicle to her residence. The vehicle was taken to an independent mechanic where the control arm was replaced. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted however, no further assistance was provided. Additionally, the contact stated that while a routine inspection was being performed on the vehicle, she was informed that the frame was corroded, and the vehicle was not drivable. The failure mileage was approximately 134,000.
The contact owns a 2006 Toyota 4Runner. The contact stated that after a State Inspection, the vehicle was declared unsafe to drive on the State roadways due to severe corrosion. The contact stated no warning light was illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the subframe needed to be replaced due to extensive corrosion. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 140,000.
Suspension all 65 →
The Frame and Suspension Components of the vehicle have corroded or rusted badly and prematurely even though the rest of the vehicle is in excellent condition. This is a known and common occurrence with the 4th Generation Toyota 4Runner Vehicles such as this 2006 model. - Currently the upper Rear Differential Stabilizer Arm has completely rusted off causing handling problems with the vehicle. Many areas of the frame are rusted through making it difficult to jack up or raise the vehicle on a hoist. - Problem has been observed and reported by Dealer(s) and Independent Shops I have visited. - This has NOT as yet been inspected by manufacturer representatives other than dealers. - This first appeared in late 2012 when I purchased the vehicle used with approx. 75,000 miles. …
The contact owns a 2006 Toyota 4Runner. The contact stated that while driving approximately 25-35 MPH, the control arm detached. The contact was able to drive the vehicle to her residence. The vehicle was taken to an independent mechanic where the control arm was replaced. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted however, no further assistance was provided. Additionally, the contact stated that while a routine inspection was being performed on the vehicle, she was informed that the frame was corroded, and the vehicle was not drivable. The failure mileage was approximately 134,000.
Brakes all 34 →
Corrosion of pistons in front brake calipers results in an increase in braking stopping distance. Everytime the front brake pads are replaced the same issue is encountered, defect has taken place three times. In the four piston brake caliper the inside pistons on both the left and right caliper are frozen in place . The brake pads on the outside position have twice as much wear as the inside pads. This is an indication of uneven braking leading to increased stopping distance . Toyota maintains , there is not a problem, yet in forums on the web there are many experiences with owners having the same problem , resulting in costly repair bills. There is no warning of reduced braking efficiency .
Corrosion related issues not found on other makes based on personal experience with other boxed ladder frame vehicles Extreme corrosion involving disintegration of the rear trailing arm already haphazardly repaired with steel doubler Ladder frame is disintegrating from interior of frame penetrating towards the exterior facade Compromises structural integrity and safety of vehicle that is seen beyond on many 4runners beside this particular example Brake calipers sticking due to corrosion requiring replacement on multiple occasions Binding of brake components cause severe pull under highway speed braking
2006 Toyota 4Runner engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.0L 6-cyl | 5-speed automatic | RWD | 16 / 20 / 18 |
| 4.0L 6-cyl | 5-speed automatic | 4WD/AWD | 15 / 19 / 17 |
| 4.7L 8-cyl | 5-speed automatic | RWD | 15 / 18 / 16 |
| 4.7L 8-cyl | 5-speed automatic | 4WD/AWD | 14 / 18 / 16 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2006 Toyota 4Runner a good car?
Based on 381 owner complaints filed with NHTSA, the 2006 4Runner rates average: 1.4× as many complaints as a typical year of the 4Runner at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2006 Toyota 4Runner?
The body & structure — 143 complaints, 38% of all complaints for this model year, most often about body. Next are the suspension (65) and brakes (34).
How many recalls does the 2006 Toyota 4Runner have?
There are 5 recalls for the 2006 Toyota 4Runner, the most recent from June 2, 2016 (seat heater/cooler). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Toyota 4Runner?
The best years by complaints, compared at the same age, are 2013, 2017 and 2024. Years to avoid or approach with caution: 2025, 2011, 2003 and 2004. See the full Toyota 4Runner years comparison.
At what mileage do 2006 Toyota 4Runner problems happen?
The median mileage reported in complaints is about 101,000 miles; 28% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.