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Visibility (wipers, defrost, mirrors)Part report

2021 Toyota 4RUNNER Visibility (wipers, defrost, mirrors) Problems

Complaints
3about this part
Share
8%of 36 total for the year
Median mileage
1,718miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the visibility of the 2021 Toyota 4RUNNER, 8% of the 36 complaints for this model year. Where a mileage was given, the median is 1,718 miles.

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.

“While driving in a snowstorm on an interstate highway at night on 1/25/2021, two important safety systems failed due to ice and snow buildup on the vehicle. Failure 1: the pre collision system (pcs) warning light illuminated indicating temporary failure of the pcs system (see photo 1). This was due to ice and snow buildup on the forward sensor, located on the front grille (see photo 2). Problem could only be rectified by stopping and physically removing the ice buildup, as referenced in the Toyota owner's manual, page 252. …”

NHTSA complaint #11390053, filed 2021-01, 637 miles

“I was driving my new car with less than 500 miles on a highway with no other cars around and nothing overhead. It sounded like a gun went off then I could hear the glass falling sliding around on the sunroof shade. The glass was blown outward proving nothing fell and broke it. A Toyota dealers is replacing the sunroof but refuse to accept responsibility and let warranty pay. My 2 year old daughter was in the cover and I’m so thankful I had the sun roof shade closed because glass would have been sprayed over all of us.”

NHTSA complaint #11429331, filed 2021-08

“The contact owns a 2021 Toyota 4Runner. The contact stated while driving approximately 70 MPH, the sunroof exploded, sending glass inside the cabin of the vehicle. The vehicle was taken to a local dealer where it was diagnosed with needing the sunroof to be replaced however, the vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 2,800.”

NHTSA complaint #11448221, filed 2022-01, 2,800 miles

Related service bulletins

Visibility (wipers, defrost, mirrors): other model years

YearComplaintsShare of year
2026114%
202523%
202313%
202138%
202013%
201946%
201823%
201645%
201533%
201434%
201132%
201011%
200844%
2007106%
2006226%
2005266%
2004142%
2003183%
200221%
200111%
2000102%
199931%
199810%
199731%
199674%
199521%
199423%
199324%
199248%
199112%
199011%

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
Back-over prevention (rear camera)
2 complaints
Forward collision avoidance
2 complaints
Other or unknown
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