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KLUNK
KLUNK

2003 Toyota 4runner

The Verdict

14 Total Klunk

The 2003 Toyota 4runner has 704 owner complaints filed with NHTSA. The most reported issues are body (467 complaints) and engine (114 complaints). With a Klunk Score of 14/100, it earns a "Total Klunk" rating. If you're shopping for a Toyota 4runner, consider the 2024 model year which has 98% fewer complaints.

Safe Bet

The 2024 has 98% fewer complaints

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14

Klunk Score: Total Klunk

Among the most complained-about vehicle years on record. Strongly consider alternatives.

How is this calculated?

The Klunk Score ranks this vehicle year against all others in our database based on total owner complaints filed with NHTSA. 100 = fewest complaints (top tier), 0 = most complained-about. Scores above 60 are better than average; below 40 means more problems than most.

Recalls 2

Active safety recalls from NHTSA for this vehicle year.

03V146000 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 B...

Risk

THIS COULD RESULT IN AN ENGINE COMPARTMENT FIRE IF A HEAT SOURCE OR AN IGNITION SOURCE IS PRESENT.

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 FR...

Reported Apr 11, 2026

11V113000 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 PO...

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 ...

Reported Apr 11, 2026

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Under the Hood

Each number is a complaint. Darker = bigger problem.

YearBodyBrakesElectricalEngineTransmission
200035434184739
2001123892030
200215726112335
2003467661711440
200446974514734
200531131243423
200626727362328
20078528191111
2008441071023
200950359
201031119245
201128611185
20126770100
20131351260
201427430151
201535329172
201634525106
2017169731
201828510142
20193158174
2020194811
2021236511
2022235821
2023222522
202452210
20252425731

By Category

Body
467
Engine
114
Brakes
66
Transmission
40
Electrical
17

By Severity

1
340
2
337
3
8
4
19

Worst Problems

Compare Against

See how the 2003 Toyota 4runner stacks up against rivals.

Complaints

Engine 2

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 there and they told me they didn’t even test drive it and that if it started running hot that to bring it back to service I felt unsafe and left the car and not only that the ABS lights and TRAC and maintenance and other lights were illuminated and it wasn’t that way when I brought it in I didn’t feel safe so I left it at service and I’m done dealing with this company . I want a resolution this is unsafe and I’m not the only one who has been done wrong . I have picture proof of the miles . Also the radiator fan shroud was left in the back of the car as well when I went to pick up. This is absolutely ridiculous!

11d ago
Engine 1

Many things are happening to my truck that’s why I am contacting you people to see if I got any callback thank you so much

8mo ago
Body 1

Severe frame rust. 2 large holes on the inside of the frame just back from the front wheels and 2 large holes at the ends of the rear crossmember.

9mo ago
Electrical 1

Odometer Fraud. The contact investigated a 2003 Toyota 4 Runner. The contact stated that during the investigation, he discovered a fraudulent scheme of approximately 15 vehicles with odometer fraud. The contact stated that the suspects targeted Facebook Marketplace victims by spraying oil on the engine prior to test-driving the vehicle, and when the vehicle began smoking, the suspects would ask for a discount for the vehicle. The contact added that after the vehicle was purchased, the odometer was rolled back and the vehicle was resold. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 150,000, and at the time of the vehicle being sold, it was discovered that the mileage was 306,000.

12mo ago
Body 1

While my mechanic was servicing a small exhaust leak on my vehicle he noticed that the chassis/frame of the vehicle was heavily corroded. He told me that he believe it was no longer safe to drive and that I contact Toyota. I had a local Toyota service center also look at it and they confirmed that the chassis/frame was heavily corroded and unsafe to drive.

13mo ago
Body 2

My vehicle: 2003 4Runner SR5 2WD VIN: [XXX] Issue: Front driver's side door will not open. Electronic locks are operating, but the door release is not functioning. Safety Concern: What if I was in a situation where I did need to get out of the vehicle immediately? Such as a high-water incident, fire, etc. Especially for a person [XXX], as myself, this would be a big issue. When attempting to exit the car after pulling into the driveway, I could not open the driver's door. The locks would release, but the door latch would not. I had to crawl over the console to get out through the passenger side. This was not easy as I had back fusion surgery and 8 disc replaced, fused. I had to open the sunroof to help with get over and out. After I did get out, I tried the key in the driver's door, it would actuate the door locks on all doors, but the driver's side door latch would still not release. I even disconnected the battery and reconnected. No help. And after knowing more, it was not an electrical issue, but mechanical failure. I now have it at the repair shop after talking with Toyota Service manage who admitted it was a poor design as the repair for this is to destroy the door panel to get to the actuator to attempt to release the door latch. The estimate for this work is 1,150.00. I am beyond frustration, and especially when I see there is no recall for this issue. There are penty of conversations on this same issue on 4Runner forums as well as all over YouTube. Thank you for looking into this. You can reach me at: [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

17mo ago
Body 1

Toyota has had issues with their frames rusting out and the 4th generation 4Runner is not exempt from this issue. My 2003 is requiring extensive work to keep it on the road safely due to frame rust. A recall to replace frames should be in place.

24mo ago
Body 1

There is major corrosion on the chassis, brake-power steering-transmission lines, and all metal brackets on the frame and engine. The corrosion is so bad there is holes on the chassis. Known issue, many complaints, Toyota Corp. says to keep calling back maybe something will be done in the future. Unable to upload photos!

34mo ago
Body 2

Severe frame rust, there was a recall for tacomas but 4Runners have the issue just as bad

36mo ago
Body 1

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.

39mo ago
Body 2

Frame is rotted from front to back

44mo ago
Body 1

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.

45mo ago
Brakes 2

The VSC system in the vehicle becomes disabled due to a firmware 'glitch' identified by Toyota when an emission system issue is detected by the onboard diagnostic system. The VSC system is listed as an 'essential safety feature,' so I'm curious why a recall was never ordered to patch defective firmware that can cause VSC to become disabled due to a completely unrelated emissions issue.

45mo ago
Body 1

Extensive rust through out frame, resulting in holes in structural members. Leaving frame in a weak and vulnerable state.

46mo ago
Body 2

I purchased this 2003 Toyota 4Runner in 2018 under what I assumed was prime condition, for a vehicle that spent the majority of its life in Nebraska/Kansas before I moved to Texas in 2021. At 87,400 miles at the time of purchase, the vehicle had no visible damage to the exterior besides a few paint chips, some minor hail damage and scratches, and some easily fixed surface rust in the paint on the tailgate. The previous owner had driven it leisurely and had kept the miles low after 15 years. The car has had some mechanical issues, but nothing out of the ordinary outside of some regular maintenance over the first few years. Being close to 100,000 miles, the timing belt and pump was replaced around 98,000 miles. Other issues have been fixed periodically, please reference the attached files. After joining a Toyota 4Runner 4th Generation Facebook group and seeing a post about another's issues with rust damage in October 2020, I decided to take a look at my own frame. I then inspected my own vehicle, and found significant frame rot damage. It is extensive, with significant rust to the frame, with large holes and soft patches that question the integrity of the frame and the safety of the vehicle on the road. Every time I hit a small bump or pothole, I fear the frame will crack and I will lose control as others have. I have not sought out professional repairs due to the extensive cost, and am awaiting the outcome of a current class action lawsuit by the Bell Legal Group. The 4th Generation Toyota 4Runner (2003-2009) is built on the exact same frame as the Toyota Tacoma of that era, yet while the Tacoma was recalled for frame rot, the 4Runner was not included, which I believe to be a gross oversight in previous legal proceedings. The 2003-2009 Toyota 4Runner is a reliable vehicle, but poses significant frame rot issues much earlier than should be expected.

46mo ago
Body 1

Vehicle frame has rusted through and has holes affecting structural condition.

47mo ago
Transmission 2

Complete corrosion of entire frame causing unavoidable damage to framework.

49mo ago
Body 1

There is severe rust on the frame, the rear is listing by 3/4 of an inch due to suspension rust, parts of the frame are perforated and lots of rust can fall out of drain holes when tapped. I am unable to steer the truck due to the intermediate steering column rust. The Tacoma was recalled for the same reason, I am assuming the 4runner has not been recalled because it was manufactured in greater numbers, and therefore more costly to repair, the danger of the severe rust is the same in both vehicles.

50mo ago
Body 1

Excessive frame rust causing difficulty to keep vehicle on the road. No warning lamps, I noticed the rust starting years ago, now the rust is so bad that the frame is rusted through causing difficulty steering and loud crunch noises. I contacted Toyota Consumer Affairs explaining the rust concern and asked if I needed to take the vehicle to a dealership for inspection, they said it wasn’t necessary (sounds like they don’t want to admit the existence of a possible manufacturing defect). The vehicle is available for inspection. I feel like I would be doing a disservice to society if I continue to drive this vehicle on public roads due to the danger of injuring a pedestrian or another motorist.

51mo ago
Body 1

Rusted frame

51mo ago

704 total

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