Most common 2003 Toyota 4Runner problems
Share of the 696 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 →
2003 Toyota 4Runner recalls (3)
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.
Fuel system, gasoline
On certain sport utility vehicles equipped with v6 engines, the fuel pulsation damper, located on the fuel rail, May have been improperly assembled, causing a diaphragm in the pulsation damper to be damaged. If the diaphragm fails, fuel May leak.
Remedy: Dealers will replace the pulsation damper. Owner notification began May 5, 2003. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a…
Wheels
On certain sport utility vehicles equipped with five factory alloy wheels (model 6934 and 6936), with factory llat, and with port installed wr4, four alloy wheel upgrade processed at the jacksonville, florida port and distributed by southeast Toyota distributors in the states of alabama, florida, georgia, north and south…
Remedy: Owners will be provided with different style lug nuts, a warning label for the spare re/alloy wheel, and an owner's manual addendum.
NHTSA defect investigations
Federal safety investigators have looked into 2 possible defects involving the 2003 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 2003 Toyota 4Runner owners say
Body & structure all 284 →
The contact owns a 2003 Toyota 4Runner. The contact stated that while the vehicle was at the tire retailer for tire replacement, the technician informed him that the subframe was corroded. The vehicle was then taken to an independent mechanic, who diagnosed that the passenger's side front and rear subframes were severely corroded, as well as the cross member. The mechanic advised the contact to stop driving the vehicle. The dealer was made aware of the failure and informed the contact that there was no recall associated with the VIN. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 165,000.
The contact owns a 2003 Toyota 4Runner. The contact stated that upon taking the vehicle to several independent mechanics for servicing, he was informed that the subframe was significantly corroded and needed to be replaced. The vehicle was not repaired. The dealer was not notified of the failure. The manufacturer was notified of the failure and informed the contact the vehicle was not covered under recall. The failure mileage was approximately 115,000.
Suspension all 114 →
The contact owns a 2003 Toyota 4Runner. The contact stated that while driving at limited speeds of 45 mph, the vehicle would wobble and swerve and was very unstable. The vehicle was taken to a Certified Auto Mechanic Shop and an independent mechanic who diagnosed that the failure was caused by severe rusting, perforation and corrosion of the rear subframe and suspension system. The vehicle was also driven to Muffler Shops in Bladensburg, MD on 8-20-2021, and on 10 -22-2021 to Hyattsville Toyota's Certified Toyota Collision Center for Repair Estimates of $4,000.00 and $7,268.00. The vehicle frame manufactured by Dana Holding Corporation which really requires fixing or replacing was not yet repaired. The Toyota manufacturer and local dealer Global Auto Outlet were notified of the failure. The approximate failure mileage was 1 85,000. …
No Accident - Items need to be investigated for Safety Defects on Toyota's. 1> Front Brake Calipers (constant freezing of the front brake calipers). 2> Dash Cover (excessive cracking on the dash covers especially areas that contain airbags). 3> Fuel Pump Connection (on top of fuel tank, connection to fuel pump appears to create a short, which in turn causes vehicle to stall also could cause a fire). 4> Excessive Frame Rust (frame has excessive rust outside and inside which is causing frame to fail. this is a manufacturing issue). These are ongoing issues with Toyota that have been reported and nothing is being done about it. Multiple 4runners are having big time Excessive Frame Rust, which are causing the frame coming apart during highway driving. These photo's show the rust on the outside and inside, all metal is having rust issues. …
Engine & cooling all 99 →
So first off I had a Ford Escape and one day it wouldn't crank up and started beeping loud so I called and got it towed it sat in the shop for 3 days and they told me it was fixed they fixed the abs lights and was told it was ready and I didn't even make it out of shop and the car was running hot and als realized the miles had been docked back a lot and had to be towed again a week came around and the fan stopped spinning and they said they offer me a trade in because they didn't know what was wrong well I got this 2003 4 runner and these both were under warranty 3 months in and both had to be taken into service this one for radiator busted only to go into service had it towed and then additional problems they put a new wheel hub and brakes without my authorization and also the gear clip / gear shift was broken and they were trying to fix that and told me my car was ready today went up …
The rust and corrosion underneath the vehicle continually gets worse year after year. The main components of vehicle relating to the engine, powertrain and suspension underneath vehicle are corroded; holes exist in the frame of the truck through out. The frame of truck is rotted due to not being sealed properly during the manufacturing process. Due to the rust and corrosion on the frame of truck, it is impossible to get work done on exhaust and muffler areas. I will send pictures for your reference. This makes driving a safety concern for myself and my son. At this time, I am unable to purchase a new car and do not have money to replace/fix the frame of truck. Inevitably, this problem will get worse and may cause a safety concern for myself and others on the road. …
2003 Toyota 4Runner engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.0L 6-cyl | 4-speed automatic | RWD | 16 / 20 / 18 |
| 4.0L 6-cyl | 4-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 / 17 / 15 |
EPA ratings. Class: SUV.
Frequently asked questions
Is the 2003 Toyota 4Runner a good car?
Based on 696 owner complaints filed with NHTSA, the 2003 4Runner rates avoid: 2.7× as many complaints as a typical year of the 4Runner at the same age. It is one of the 4Runner years we suggest avoiding. 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 2003 Toyota 4Runner?
The body & structure — 284 complaints, 41% of all complaints for this model year, most often about body. Next are the suspension (114) and engine & cooling (99).
How many recalls does the 2003 Toyota 4Runner have?
There are 3 recalls for the 2003 Toyota 4Runner, the most recent from February 24, 2011 (accelerator pedal). 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 2003 Toyota 4Runner problems happen?
The median mileage reported in complaints is about 106,000 miles; 26% 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.