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Other or unknownPart report

2021 Toyota 4RUNNER Other or unknown Problems

Complaints
2about this part
Share
6%of 36 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the other or unknown of the 2021 Toyota 4RUNNER, 6% of the 36 complaints for this model year. 1 a fire, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

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

“Steering wheel shimmy and shake from around 55-63mph. Intermittently happens but is very well documented across forums. This affects 4runners that are brand new, and there is no clear answer to a fix.”

NHTSA complaint #11418568, filed 2021-05

Related service bulletins

Other or unknown: other model years

YearComplaintsShare of year
2026229%
2025915%
2024220%
20231236%
2022821%
202126%
2020927%
20191218%
2018915%
20171439%
20161823%
20151416%
20141114%
20131028%
201266%
201196%
201085%
200929%
20081213%
20072114%
20067820%
20056816%
200412118%
200311116%
20023214%
20012514%
20006012%
19993711%
1998166%
1997218%
1996127%
199595%
199446%
199023%
1988111%

Other parts of the 2021 Toyota 4RUNNER

Steering
13 complaints
Suspension
10 complaints
Brakes
6 complaints
Wheels
4 complaints
Electrical system
3 complaints
Exterior lighting
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Back-over prevention (rear camera)
2 complaints
Forward collision avoidance
2 complaints
Air bags
1 complaints
Fuel system
1 complaints
Latches, locks and linkages
1 complaints

← All problems reported for the 2021 Toyota 4RUNNER

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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