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2005 Toyota 4RUNNER problems

The most common problem on the 2005 Toyota 4RUNNER is body and structure, typically around 129,000 miles. It has 4.9 times the complaints of a typical 4RUNNER model year.

Year to avoid4.9x the typical complaints
Year score
15/100
Owner complaints
425
Recalls
5
Service bulletins
227
Worst area
Body
Fuel economy
16-18mpg

The worst 2005 Toyota 4RUNNER problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

Specific symptoms reported on the 2005 Toyota 4RUNNER

Ball joint 12Sudden acceleration 11Harsh shifting 10Check engine light 9No deployment 6Brake failure 6Adaptive cruise 5

Recalls 5

Seats: front assembly: seat heater/coolerReported June 2, 2016 · 7,749 vehicles affected
What is wrong
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 Camry, and 1989 and 2009-2010 Corolla vehicles equipped with aftermarket accessory seat heaters with a copper strand heating element. The electrical wiring in the seat heaters may be damaged when the seat cushion is compressed.
Risk
If damaged, the copper strand heating element may short circuit, increasing the risk of a fire.
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. Owners may contact SET customer service at 1‑866‑405‑4226. SET number for this recall is SET16B.

Recall number 16V396000 · Recall details

Air bags: side/windowReported February 5, 2016 · 320,409 vehicles affected
What is wrong
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. The affected vehicles have an air bag control module that may be improperly programmed, causing the side curtain-shield-air bags to deploy inadvertently.
Risk
If the side curtain-shield-air bags deploy unexpectedly, it can increase the risk of occupant injury.
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. Owners may contact Toyota customer service at 1‑888‑271‑9371. Toyota's number for this recall is G0C and GLB.

Recall number 16V065000 · Recall details

Vehicle speed control: accelerator pedalReported February 24, 2011 · 1,363,244 vehicles affected
What is wrong
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.
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 death.
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. Owners may contact toyota at 1‑800‑331‑4331 or lexus at 1‑800‑255‑3987.

Recall number 11V113000 · Recall details

Equipment: other: labelsReported February 3, 2010 · 271,417 vehicles affected
What is wrong
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.
Risk
This does not meet the standard requirements.
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. The safety recall began on may 27, 2010. Owners may contact gulf states toyota at 713‑580‑3300.

Recall number 10V035000 · Recall details

Equipment: other: labelsReported February 3, 2010 · 153,418 vehicles affected
What is wrong
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.
Risk
A driver may overload a vehicle which may increase the risk of a crash.
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. Owners may contact southeast toyota at 1‑800‑301‑6859.

Recall number 10V036000 · Recall details

See all 5 recalls for the 2005 Toyota 4RUNNER

Defect investigations

Frame corrosionOpened August 17, 2018, closed March 18, 2022

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 the federal safety agency?s online complaint database. The petitioner submitted a complaint to the federal safety agency documenting his experience (the federal safety agency 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 the federal safety agency 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 the federal safety agency 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. the federal safety agency 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

DP18002

Unintended and Uncontrolled AccelerationOpened February 16, 2010, closed March 1, 2011

On February 16, 2010, the federal safety agency'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.the federal safety agency also requested information regarding potential electronic causes of unintended acceleration in Toyota and Lexus vehicles.I. Pedal Interference from Floor mats, Carpet Covers and Plastic Pads in Carpets.During the RQ10-003 investigation, ODI reviewed a large volume of documents to assess whether additional vehicles should be recalled.Following the agency's analysis, the federal safety agency requested that Toyota recall additional vehicles.Toyota complied with the agency's request.The details of these recalls are set forth more fully in Toyota's reports to the federal safety agency pursuant to 49 CFR Part 573.These recalls are as follows:Recall 11V‑112: (1) model year (MY) 2004-2006 Toyota Highlander and Highlander Hybrid; and, (2) MY 2004-2007 Lexus RX330,RX350, and RX400h (hybrid model). The total estimated population under this recall is 769,379 vehicles.This recall remedies potential accelerator pedal entrapment caused by a loose floor carpet cover (trim panel). Recall 11V‑113: (1) MY 2003-2009 through 2009 Toyota 4Runner; (2) MY 2006-2010 Toyota RAV4; and, (3) MY 2008-2011 Lexus LX570.The total estimated population under this recall is 1,381,000 vehicles.This recall supplements recall 09V‑388 and remedies potential accelerator pedal entrapment by an unsecured floor mat.Recall 11V‑115: (1) MY 2006-2007 Lexus GS300 (all wheel drive vehicles); and, (2) MY 2006-2007 Lexus GS350 (all wheel drive vehicles). The total estimated population under this recall is 19,647 vehicles.This recall remedies potential accelerator pedal entrapment caused by inadequate clearance between the pedal linkage and a plastic pad embedded in the vehicle's carpet.II. Potential Electronic Causes of Unintended Acceleration.After the federal safety agency opened RQ10-003, the federal safety agency launched a ten-month study of potential electronic causes of unintended acceleration in Toyota vehicles.the federal safety agency launched the study in the spring of 2010 in light of concerns aired in Congressional hearings.the federal safety agency enlisted engineers at the National Aeronautics and Space Administration (NASA) with expertise in areas such as computer controlled electronic systems, electromagnetic interference and software integrity to assess whether electronic systems or electromagnetic interference played a role in incidents of unintended acceleration in Toyota vehicles.That study has concluded.Two reports are associated with the study and are available on the federal safety agency's website.NASA's report is entitled Technical Support to the federal safety agency on the Reported Toyota Motor Corporation (TMC) Unintended Acceleration (UA) Investigation, NESC Assessment No. TI-10-00618 (Jan. 18, 2011).the federal safety agency's report is entitled Technical Assessment of Toyota Electronic Throttle Control (ETC) Systems (Feb. 2011).Both reports should be read in conjunction with each other. As stated in its report, NASA did not find an electronic cause of large throttle openings that can result in unintended acceleration incidents. the federal safety agency did not find a vehicle-based cause of unintended acceleration incidents other than the physical pedal interference causes that are being addressed by Toyota's recalls. This RQ is closed.

RQ10003

Technical service bulletins for the 2005 Toyota 4RUNNER 227

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 227 bulletins for the 2005 Toyota 4RUNNER

2005 Toyota 4RUNNER fuel economy

Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.

EngineDriveCityHighwayCombined
4.0L 6‑cylRWD162018
4.0L 6‑cyl4WD151917
4.7L 8‑cylRWD151816
4.7L 8‑cyl4WD141816

What 2005 Toyota 4RUNNER owners say

Most recent owner complaints, unedited.

Filed Sep 23, 2026 · Engine · TX

Head gasket failure. 2005 toyota 4runner generation are notorious for head gasket failure. Due to the poor manufacturing of the gasket it has been deteriorating and has allowed coolant to leak into the cylinder causing misfires and possibly more damage internally. including permanent mechanical breakdown or a completely ruined engine block. High risk of Hydrolock, Damaged Engine Bearings and Sludge, Severe Overheating, Catalytic Converter Failure. Any of these effects cause by this head gasket failure will be extremely dangerous to happen while driving. The vehicles is being taken to a independent mechanic 09/28/2026 for conformation diagnosis. And possible repairs. The check engine light showed the following code-P0300, P0302, P0304. The only symptom where misfiring and coolant levels depleting. The vehicle has not been inspected by the manufacturer, police nor insurance representative. Noticeable misfiring around the beginning of 2025 has just became more aggressive since 2026

Filed May 14, 2026 · Body, Suspension · WA

I have a 2005 Toyota 4runner with frame rust that has caused everything under my 4runner to rust. Toyota knows these frames have problems with rust and corrosion and have done nothing, I am far from being the only one with this complaint or problem. It is up for inspection anytime. I have taken it to get work done at shops and been turned away because of the amount of rust on all bolts, lines, all metal under truck causing it to be a liability. I cant even get my skid plates off to fully address the issue. The metal is starting to split on the main frame by the tire, it is rotting from inside. Rust has always been there but last couple years has gotten really bad. So much rust my gas tank strap has broken but so much rust I cant get the skid plate off to fix it.

Filed Jan 29, 2026 · Electrical · 342,912 miles · CA

Odometer Fraud. The contact purchased a 2005 Toyota 4Runner. It was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 217,000, and at the time of registration, it was discovered that the mileage was 342,912.

Filed Dec 5, 2025 · MA

Premature/unsafe frame rot

Filed Aug 4, 2025 · Acceleration, Body · 205,000 miles · OH

The contact owns a 2005 Toyota 4Runner. The contact stated that while driving at an undisclosed speed, the vehicle briefly hesitated and was unable to accelerate, prompting the contact to discontinue driving the vehicle. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the catalytic converter. The contact was also made aware that the mechanic discovered excessive corrosion covering the entire subframe of the vehicle. The contact was advised not to drive the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 205,000.

Filed Jul 9, 2025 · Body, Transmission · VA

- The undercarriage and frame have had premature rusting for years. The car is otherwise in excellent condition due to my care of it over the last 20 years. 5 years ago, a service person at my local Toyota dealership said, "I'm really disappointed in Toyota, I've never seen rust like this." I have now recently been told by a local service shop that it's time to get a new car. The lines are all corroded for the power steering, etc, and he was unable to even "touch them," and said that the rust issue is no longer safe, and we shouldn't drive far from home. - We are now unable to drive the car much, as we live in the country and have far communities. With a [XXX] , we are unwilling to drive the car over 45 mph, or more than 10 miles for fear of an accident after reading about the manufacturing defect in this model of the 4-Runner. - It has not been inspected by the above stated people. - no warnings, I would not have know the vehicle had such severe premature rusting issues if it weren't for a service person telling me such. -My vehicle has under 140k miles on it, and I've taken exceptional care of it over the past 20 years. I could have sold it for 10k given its condition, and low mileage, but it is now likely worth nothing given the manufacturing defect which caused premature rusting. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 27, 2025 · Body, Engine · TX

When I first saw the pictures on the internet, I noticed that the front underside appeared to have rust issues. (Frontal shot) I contacted that sales person and he blew me off when I requested photos of the underbody. After several attempts, he finally sent a couple of pictures. The pictures obviously did not show the major rust issues as I have provided. The pictures were carefully fabricated not to show the major rust issues. It was apparent that the vehicle was taken off the internet while they hid the rusty underbody by applying some coating. A short time later, the dealership reposted the vehicle on their website. The vehicle was not properly advertised as having this major rust issue. I asked the salesman if his family was driving the vehicle, would he feel safe. He replied, "Absolutely". With this said, I decided to purchase the vehicle. Also, my signature is not on the "We owe". Also, the vehicle has an exhaust leak from the manifold area. It makes a loud ticking noise. This is going to cost approximately $1,500 to fix. The air conditioner is not blowing cold and either has a leak or in need of freon. This is another repair out of my pocket. This is what kind of pre-owned vehicle they sold me. This vehicle should have never been listed for sale.

Filed May 29, 2025 · Suspension · MI

ENTIRE body frame has excessive rust, holes, and cracks. It is available for inspection. Toyota dealership says it is safe to drive for now but it is failing. I feel any cracks, rust, holes, separation of frame components places all occupants and anyone near the vehicle at risk for when anything fails - this could be when the vehicle is on the expressway in motion (such as when the GM ignition switch failures happened), causing catastrophic loss of life, injuries, and damage to all. It's not a matter of "if" it happens, it's "when" it will happen. There are no warning lamps, messages, or other symptoms of the problem. The exterior, interior, braking, engine of the vehicle are in remarkable shape so it's very misleading. There are also 4runners on dealership lots that have significant rust, holes, and cracks in the frames that the dealership does not warn about, rather, they still have high for-sale values because the vehicle looks good otherwise.

Filed May 27, 2025 · Body · OH

Frame rot. The frame on the 4Runner is a known problem for excessive rot. My frame is shot. There is no reason a frame on a 2005 should be rotted. I was advised by my mechanic that my frame is dangerously close to snapping in half. This needs fixed by Toyota!

Filed Jan 22, 2025 · Body · IL

Under frame is rusted. The area between the doors in the passenger side is gone. only the top face of the member is present.

Used buying checklistWhat to check on a 2005 Toyota 4RUNNER before you buy

Compare the 2005 Toyota 4RUNNER

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Other model years

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Questions about the 2005 Toyota 4RUNNER

Is the 2005 Toyota 4RUNNER reliable?

Owners have filed 425 complaints about the 2005 Toyota 4RUNNER, 4.9 times a typical 4RUNNER model year. It is one of the years we flag to avoid.

What is the 2005 Toyota 4RUNNER year score?

The 2005 Toyota 4RUNNER scores 15 out of 100 (poor). The score compares it with the other model years of the Toyota 4RUNNER: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.

What is the most common problem with the 2005 Toyota 4RUNNER?

Body and structure, with 185 complaints, typically around 129,000 miles. Next is suspension (77).

How many recalls does the 2005 Toyota 4RUNNER have?

5 recalls, covering seats, air bags and vehicle speed control.

What year does the Toyota 4RUNNER have the most body problems?

The Toyota 4RUNNER model years with the most body complaints are 2004 (310 complaints), 2003 (284 complaints) and 2000 (256 complaints).

What gas mileage does the 2005 Toyota 4RUNNER get?

Official estimates for the 2005 Toyota 4RUNNER range from 16 to 18 mpg combined. The most efficient version (4.0L 6-cyl, RWD) gets 16 city and 20 highway.

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