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Forward collision avoidancePart report

2021 Honda Odyssey Forward collision avoidance Problems

Complaints
19about this part
Share
13%of 147 total for the year
Median mileage
380miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 19 complaints about the forward collision avoidance of the 2021 Honda Odyssey, 13% of the 147 complaints for this model year. Where a mileage was given, the median is 380 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.

“Hi the vehicle shows speed limit of 70 in 25 or 40mph zones. The vehicles system keeps going offline emergency braking and collision. Every time I take to Honda dealer I am being told to go see where the car was purchased and they can't find a issue.”

NHTSA complaint #11397134, filed 2021-02, 380 miles

“All of my assist lights just came.on one after another saying there was a malfunction with the emmision light continues to go.on go.off even after I paid 580 to have the car serviced for the assist lights. Now the lift gate stopped working three weeks ago yesterday with all the rain that poured now the lift gate is open and will.not latch.”

NHTSA complaint #11648579, filed 2025-03

“On numerous occasions the forward collision warning has caused hard braking when there is nothing close in front of me. I fear that a close following vehicle will hit me when this occurs. This has not caused an accident yet, but the following vehicle driver must think that I'm a terrible driver for unnecessarily hitting my brakes.”

NHTSA complaint #11465765, filed 2022-05

“While driving on a straight, wide open road at approximately 45mph with no vehicle in any close proximity in front, the forward Collision Mitigation Braking System alarmed and activated and strongly braked, slowing the car quickly down to about 20mph before releasing. Fortunately, there was no one behind me to react to the unexpected slowing down of my car. There was no apparent reason why this should have activated. …”

NHTSA complaint #11525332, filed 2023-06

“I am writing to urgently bring to your attention a critical issue plaguing the driver assist systems in Honda Odyssey 2018+ vehicles. Despite meticulous maintenance and adherence to manufacturer guidelines, I have encountered a persistent and alarming problem that appears to affect numerous other vehicle owners, as evidenced by online forums and discussions. The issue initially arose during a rainstorm, where I received a warning message stating, Some Driver Assist Systems Cannot Operate: Radar Obstructed. …”

NHTSA complaint #11582551, filed 2024-04

Forward collision avoidance: other model years

YearComplaintsShare of year
20261118%
2025143%
20241210%
20232625%
20222921%
20211913%
202018638%
201924024%
201821021%
201713%
2016135%
201521%
200710%
200610%
199715%

Other parts of the 2021 Honda Odyssey

Electrical system
56 complaints
Other or unknown
34 complaints
Engine
26 complaints
Air bags
16 complaints
Lane departure
10 complaints
Body and structure
10 complaints
Visibility (wipers, defrost, mirrors)
9 complaints
Back-over prevention (rear camera)
8 complaints
Suspension
8 complaints
Transmission and drivetrain
6 complaints
Fuel system
5 complaints
Vehicle speed control
3 complaints

← All problems reported for the 2021 Honda Odyssey

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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