2020 Honda Odyssey · symptom sheet
Forward collision warning goes off or the camera drops out
- 94owner reports
- 58,000median miles
- $1,700median quote
- 0involved a crash
Newest report Sep 27, 2026 · checked Oct 2, 2026
94 of the 473 complaints on this car describe false collision warning.
Tick what matches of 94 reports
False collision warning 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, 2025, 2026.
What this problem usually is
This group is about the forward collision warning itself. Owners describe alarms with nothing ahead, a forward camera that fails or reports itself blocked, and other safety features shutting off at the same moment. A lot of them happen at highway speed, and a lot end with a dealer who couldn't reproduce it.
What got replaced
Owners who name the part that was replaced mention the forward camera (69 reports), the windshield (17 reports), the radar sensor (16 reports) and the software (13 reports).
Recalls and investigations
No recall on collision avoidance covers the 2020 model year as of Oct 2, 2026.
What owners paid
37 of the 94 reports quote a price. Each dot is one quote. The middle half runs $1,200 to $2,025.
When it happens
The middle half of failures fell between 40,000 and 76,000 miles, from the 17 reports that gave a mileage.
What owners wrote
“Front windshield mounted sensor failure on 2020 Honda Odyssey. Disabled Honda Sensing safety suite which included lane keep assist, adaptative cruise control, auto high beams which all triggered warning messages on the dashboard which all occurred at the exact same time. This problem has been reproduced an inspected by Honda of Frontenac.”
Filed Sep 24, 2026
“The monocular camera failed causing the car to lose all ADAS features. Honda said this not a recall issue and I have to pay for the repair which is significant. Not only are all the ADAS features lost, but the dashboard flashes warnings and beeps reflecting the lost features”
Filed Sep 18, 2026
“Camera failed after 65,000 miles and is a known problem out there with thousands of these requiring a $2000 dealer replacement.”
Filed Aug 12, 2026 · 65,000 miles
“The camera is faulty and I've brought it in once early on and the dealer said a wire needed to be tightened. It happened again and they said no such loose wire this time. The code says camera needs to be replaced. I don't even have 100k miles on this car and it's going bad. Faulty part and I know this is happening a lot.”
Filed May 13, 2025 · 100,000 miles
Should you keep driving it?
This page can't tell you that. 0 of 94 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 Taking it to a shop? How to describe this problem so it gets found
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
- Engine stalls or loses power while driving 61 reports
- Battery dies or the car will not start 33 reports
- Multiple warning lights come on at once 29 reports