2020 Honda Odyssey · symptom sheet
Battery dies or the car will not start
- 33owner reports
- 52,000median miles
- $2,000median quote
- 0involved a crash
Newest report Sep 28, 2026 · checked Oct 2, 2026
167 of the 473 complaints on this car are about the electrical system. 33 of those describe dead battery.
Tick what matches of 33 reports
Dead battery on other Odyssey years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2014, 2015, 2016, 2021, 2022, 2023, 2024, 2026.
What this problem usually is
These owners walk out to a car that's dead. Some find it drained after sitting only a day or two, some need a jump start every week, and some have had the battery replaced more than once without the problem going away. A good number describe the dealer testing the battery, calling it fine, and sending them home.
What got replaced
Owners who name the part that was replaced mention the battery (29 reports), the starter (3 reports) and the module (3 reports).
Recalls and investigations
2 recalls on the electrical system cover the 2020 model year. A recall on the same system isn't always the same failure, so read the defect text.
Incorrect central network software programming may cause several errors to occur that can delay or prevent the rearview camera image from displaying.
The wire harness for the third row seat accessory power outlet may get pinched between the unibody and rear trim panel, possibly damaging the wires and causing an electrical short.
All 14 recalls on the 2020 Honda Odyssey, with the owner complaints on each recalled system
NHTSA investigations into the electrical system on the Odyssey
Ignition interlock failure - rollaway. Closed jan 14, 2013, led to recall 12V-573.
None of these investigations covers the 2020 model year.
What owners paid
7 of the 33 reports quote a price. Each dot is one quote. The middle half runs $1,400 to $7,000.
When it happens
Too few of these reports state a mileage to give a range.
What owners wrote
“My car went completely dead while stopped in traffic on a busy street. My kids were in the car and thankfully I was able to crank it by pressing the start button. This issue has already been âfixedâ and the dealership âcannot replicateâ”
Filed Aug 25, 2025
Should you keep driving it?
This page can't tell you that. 0 of 33 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Paid for this repair before a recall covered it? How recall reimbursement works
Other problems on this car
- Adaptive cruise or lane keeping misbehaves 120 reports
- Infotainment, screen or backup camera fails 108 reports
- Brakes on its own (automatic emergency braking) 98 reports
- Forward collision warning goes off or the camera drops out 94 reports
- Engine stalls or loses power while driving 61 reports
- Multiple warning lights come on at once 29 reports