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Forward collision avoidancePart report

2021 Toyota Sienna Hybrid Forward collision avoidance Problems

Complaints
1about this part
Share
2%of 45 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the forward collision avoidance of the 2021 Toyota Sienna Hybrid, 2% of the 45 complaints for this model year.

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.

“The car jerks when coming to a stop. Like when the regenerative system is disengaged it jerks. For the Adaptive cruise control the car will accelerate instead of braking when another car merges in front of you.”

NHTSA complaint #11717402, filed 2026-02

Related service bulletins

Forward collision avoidance: other model years

YearComplaintsShare of year
202616%
202521%
202457%
202311%
202215%
202112%

Other parts of the 2021 Toyota Sienna Hybrid

Air bags
13 complaints
Brakes
9 complaints
Seats
5 complaints
Body and structure
5 complaints
Visibility (wipers, defrost, mirrors)
5 complaints
Electrical system
4 complaints
Engine
3 complaints
Other or unknown
3 complaints
Exterior lighting
2 complaints
Suspension
2 complaints
Transmission and drivetrain
2 complaints
Back-over prevention (rear camera)
1 complaints

← All problems reported for the 2021 Toyota Sienna Hybrid

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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