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SuspensionPart report

2006 Toyota 4RUNNER Suspension Problems

Complaints
65about this part
Share
17%of 381 total for the year
Median mileage
125,000miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 65 complaints about the suspension of the 2006 Toyota 4RUNNER, 17% of the 381 complaints for this model year. Where a mileage was given, the median is 125,000 miles. 3 of these say a crash was involved, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I just had my 2006 Toyota 4RUNNER (85k miles) serviced at a-1 Toyota in new haven ct. My car is immaculate and serviced on a regular basis. As a result of the vehicle inspection, the mechanic identified frame rust issues on both sides of the front frame.”

NHTSA complaint #11405693, filed 2021-03, 84,499 miles

“Vehicle frame is rusting faster than normal. Have had to replace many suspension parts, welded front alignment tabs to keep vehicle in line, replaced vehicle suspension but unsure how long this will last due to frame still flaking. Toyota dealer states that the rust is severe and when I had my rear upper control arms replaced, stated that the mount bracket was very thin and causing movement in the rear of my vehicle.”

NHTSA complaint #11138847, filed 2018-10, 156,044 miles

“While driving my 2006 4 runner on the hwy. The frame collapsed by the rear wheel and I lost control as the rear end was wagging . Took to dealership they were not open or up front that this is a common problematic defect that Toyota has turned its back on. The tacoma, highlander, and tundra models of same year were notified and recalled. The 4 runner owners not even notified, very lucky there were no injuries. Toyota needs to step up and take ownership.”

NHTSA complaint #11312163, filed 2020-02, 212,000 miles

“I just purchased my 2006 4RUNNER and decided to take it to the shop where I work to have them do an oil change and fluid check, the mechanics brought me back and told me that my frame is rusting from the inside out and they think that in a matter of 2 yrs tops the frame will be rotted and collapse . I was terrified and in a panic my husband had taken my 4RUNNER it to his friends garage and had the whole underneath undercoated. …”

NHTSA complaint #11141373, filed 2018-10, 132,000 miles

“Rusted frame - while driving, the left front control arm broke free from the severely rusted frame. Thank god the driver was not injured. The repair will require welding to the frame to support a new control arm. This is unacceptable. Had this happened a highway speeds, this could have resulted in severe injury or death. Unacceptable! I have had it towed to a Toyota dealer but will not be conducting any repairs until Toyota's service manager responds to my questions regarding recalls on frames. …”

NHTSA complaint #11138767, filed 2018-10, 164,000 miles

Related service bulletins

Suspension: other model years

YearComplaintsShare of year
202512%
202339%
2022615%
20211028%
2020412%
2019711%
201847%
201726%
2016911%
20151011%
201434%
201313%
201222%
201132%
201053%
200929%
20081111%
2007149%
20066517%
20057718%
200411317%
200311416%
20024922%
20012715%
200010221%
19996620%
19986024%
19979536%
19963924%
199521%
199412%
199324%
199011%

Other parts of the 2006 Toyota 4RUNNER

Body and structure
143 complaints
Other or unknown
78 complaints
Brakes
34 complaints
Transmission and drivetrain
30 complaints
Air bags
24 complaints
Steering
22 complaints
Visibility (wipers, defrost, mirrors)
22 complaints
Electrical system
18 complaints
Vehicle speed control
17 complaints
Tires
13 complaints
Engine cooling
11 complaints
Engine
7 complaints

← All problems reported for the 2006 Toyota 4RUNNER

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology