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Electrical systemPart report

2021 Honda Odyssey Electrical system Problems

Complaints
56about this part
Share
38%of 147 total for the year
Median mileage
33,050miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 56 complaints about the electrical system of the 2021 Honda Odyssey, 38% of the 147 complaints for this model year. Where a mileage was given, the median is 33,050 miles.

Example complaints

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

“2021 Honda odessey lost power while driving 6 times. I ended up taking it to get service and the dealer couldn't replicate the issue in 3 different occasions. Ended up trading the odessey on thursday for a new one. However the the new 2021 Honda odessey that I bought thursday 4/8/21 lost power on me today as I was driving.”

NHTSA complaint #11407494, filed 2021-04, 200 miles

“When coming to a complete atop, the engine switches off (the idle stop function), which is ok, but when I release the brake the engine often fails to restart. I’ve replaced the battery but this appears to be a common problem. It’s been happening more now at the end of summer when it’s hot for some reason. I was told there is a similar investigation open: EA25004”

NHTSA complaint #11757074, filed 2026-08

“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

“Can has been making a popping noise that can be felt in the steering wheel for 2 years. Honda has told me nothing was wrong after taking it in 4 times. Now my car keeps stalling at lights, sometimes it takes a while to get it to restart, and they can not figure out why. They keep saying the battery is fine and diagnostics finds nothing.”

NHTSA complaint #11683344, filed 2025-08

“My rear hatch for the trunk was filling up with water every time it rained. Took it in to be looked at and they found the door wasn’t sealed during manufacturing and they sealed it. The water damage was already done and buttons for all things no longer lifts or opens the trunk door. My dash displays “ power tailgate problem” and nothing works to open it. I have to do it manually and I’m afraid it will cause further problems to the door.”

NHTSA complaint #11709146, filed 2026-01

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
20262338%
202523252%
20245746%
20233130%
20223726%
20215638%
202017335%
201922322%
201826326%
2017615%
20164015%
20152814%
20143110%
2013157%
20123715%
20116628%
20103112%
20092010%
2008337%
2007638%
2006446%
2005547%
2004539%
2003819%
2002354%
2001234%
2000386%
199911021%
19983447%
1997945%
19961724%
19952526%

Other parts of the 2021 Honda Odyssey

Other or unknown
34 complaints
Engine
26 complaints
Forward collision avoidance
19 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