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Other or unknownPart report

2016 Toyota 4RUNNER Other or unknown Problems

Complaints
18about this part
Share
22%of 81 total for the year
Median mileage
27,300miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 18 complaints about the other or unknown of the 2016 Toyota 4RUNNER, 22% of the 81 complaints for this model year. Where a mileage was given, the median is 27,300 miles. 1 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.

“While driving from austin, tx to corpus christi, tx and as we were entering the cc-city limits going about 65 MPH on ih 37 sb (center lane) with traffic on the right lane, we heard a loud pop like a gun shot then we heard glass rattling around overhead. Quickly pulled over to a safe spot to check things out. The sunroof had exploded. Weather was sunny, dry and outside temperature was about 65-degrees. …”

NHTSA complaint #11169901, filed 2019-01, 22,600 miles

“There is a problem with the windshield, it's easy to crack. I had the vehicle only 6 months and the windshield cracked after a rock hit it. The windshield cracked again after a small pebble hit the windshield when I was headed onto 85 south off of exit 93 in atlanta, georgia.the windshield is too thin or made with cheap materials. Toyota needs to take a look at these windshields. Because it causes a safety problem with the windshield. The windshield is too thin and cracks easily.”

NHTSA complaint #11194162, filed 2019-04, 10,000 miles

“The day after we purchased this 4RUNNER in october 2015 the 4 wheel drive stopped working and when we took it back to the dealer they said that rodents had chewed through the wire housing connected to the drive train. Initially they were not going to warranty the issue but after further aggressive discussion by me it was covered. Apparently Toyota uses a soy based spray or coating on the wiring that attracts rodents. The vehicle was operable but the 4wd warning light was flashing and 4wd did not engage. …”

NHTSA complaint #10892686, filed 2016-08, 100 miles

“I was going straight down a highway when my sunroof suddenly exploded and shattered. I did not see any debris hit it. It was early morning and there were few cars on the road and I was not in a construction zone. There was no evidence of impact to the sunroof or body/roof of the vehicle. The sunroof was bulging outward, as if someone punched it from the inside but I was the only person in the vehicle and had the sunroof shade closed. After investigating, there have been incidents just like this happening with other people's sunroof as well, so this was not just a one random occurrence. …”

NHTSA complaint #11208704, filed 2019-05, 52,000 miles

“The vehicle was traveling approximately 55-60 MPH (constant speed w/o acceleration) in 2wd in a 75 MPH zone on hwy 29 southbound when the rear tires lost traction (w/o audible skidding) causing the vehicle to veer to the left into the left lane at an angle exceeding 40 degrees. The vehicle brakes weren't used and I removed my foot off of the accelerator during the incident while gently trying to correct the problem. The vehicle did not cause an accident or strike anything and traction was abruptly regained (w/o warning) before hitting the guard rail allowing the vehicle to regain control. …”

NHTSA complaint #11174765, filed 2019-02, 32,000 miles

Related service bulletins

Other or unknown: other model years

YearComplaintsShare of year
2026229%
2025915%
2024220%
20231236%
2022821%
202126%
2020927%
20191218%
2018915%
20171439%
20161822%
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 2016 Toyota 4RUNNER

Electrical system
18 complaints
Air bags
10 complaints
Body and structure
9 complaints
Suspension
9 complaints
Engine
6 complaints
Transmission and drivetrain
6 complaints
Brakes
5 complaints
Fuel system
4 complaints
Steering
4 complaints
Visibility (wipers, defrost, mirrors)
4 complaints
Wheels
4 complaints
Back-over prevention (rear camera)
3 complaints

← All problems reported for the 2016 Toyota 4RUNNER

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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