Problems · NHTSA complaints

2003 Toyota 4Runner problems

Owners filed 708 complaints about the 2003 Toyota 4Runner with NHTSA between Oct 2002 and Oct 2026. The most-cited component is structure (285).

Complaints
708
Filed with NHTSA
Crashes
19
Reported by owners
Fires
0
Reported by owners
Injuries
28
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Structure285
  2. Suspension114
  3. Engine and engine cooling91
  4. Service brakes46
  5. Power train43
  6. Steering35
  7. Vehicle speed control32
  8. Service brakes, hydraulic28
  9. Seats21
  10. Wheels16
  11. Visibility16
  12. Air bags12
  13. Electrical system12
  14. Engine11

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Oct 28, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20021
200391
200458
200516
200611
200713
20087
200911
201036
201117
201214
201311
201417
201533
201644
201746
201872
201991
202041
202148
202215
20238
20241
20253
20263

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Structure

285 reports3 crashes
“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.”
Owner complaint to NHTSAFiled Oct 10, 2024StructureODI 11619222

Suspension

114 reports1 crash
“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…”
Owner complaint to NHTSAFiled Jan 3, 2023Suspension, Structure, Unknown or otherODI 11500005

Engine and engine cooling

91 reports1 crash
“I BOUGHT MY 2003 TOYOTA 4RUNNER LESS THAN A YEAR AGO FROM AN AUTO GROUP (TOYOTA, HONDA, ECT) AND HAD THEM PERFORM A SAFETY INSPECTION. SINCE IT WAS USED I KNEW THERE WOULD BE SOME ISSUES, THE ONLY PROBLEM IT HAD WAS THE RECOMMENDED SERVICE WASN'T COMPLETED AT 90K MILES (TIMING BELT, WATER PUMP, ECT). I WORKED THAT INTO THE DEAL AN WAS ON MY WAY. AFTER DEPARTING THE U.S. AND SHIPPING MY CAR TO HAWAII, THE INSPECTORS HERE FOUND A LOT OF RUST ON THE FRAME AND SAID IT COULD BE AN ISSUE GETTING AN APPROVED SAFETY INSPECTION (REQUIRED FOR REGISTERING THE CAR IN HAWAII). THEY SAID IT ISN'T SEVERE NOW, BUT CAN BE LIVING IN THIS STATE AS IT IS VERY RUSTED AND WILL CONTINUE TO DO SO IN SUCH A HUMID ENVIRONMENT. THEY ALSO SAID THAT TACOMAS FOR THAT YEAR HAD A RECALL DUE TO EXCESSIVE FRAME RUST (SIMILAR IF NOT THE SAME FRAMES) BUT 4RUNNERS DO NOT, SO THEY RECOMMENDED I TALK TO TOYOTA ABOUT IT. I CALLED THE TOYOTA SERVICE CENTER HERE AND THEY SAID THERE IS NO RECALL AND IF I WANTED THE FRAME FIXED OR REPLACED, IT'D HAVE TO BE AT MY EXPENSE. TOYOTA'S ARE FANTASTIC VEHICLES, I JUST HOPE THIS COMMENT AIDS IN THEIR DECISION TO APPROVE A RECALL ON 4RUNNER'S FRAMES DUE TO RUST…”
Owner complaint to NHTSAFiled Feb 18, 2015Engine and engine coolingODI 10683968

Service brakes

46 reports2 crashes
“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…”
Owner complaint to NHTSAFiled Oct 15, 2026Air bags, Service brakes, EngineODI 11771525

Power train

43 reports
“The frame of the car has been rusting at a significant rate in the last 4 years. Mechanic identified major rust issues that would make the vehicle not safe in case of an accident.”
Owner complaint to NHTSAFiled May 10, 2022Power train, Structure, EngineODI 11463988

Steering

35 reports1 crash
“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.”
Owner complaint to NHTSAFiled Aug 24, 2022Steering, Suspension, Unknown or otherODI 11481057
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.