2020 Honda Odyssey problems

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

I randomly received a series of 6 warning messages when starting the car on 9/3/26. They were all warnings related to the automatic safety features such as lane departure, collision detection, auto bright lights, etc.I took it to the dealer on 9/4/26 & they diagnosed an internal failure with a multi-purpose camera embedded in the rearview mirror. The dealer ordered a new part, installed and reprogrammed and recalibrated the camera. This vehicle has been owned only by me, is kept in a garage away from weather exposure, there is no reason for this part to fail on a 6 year old car with a hefty cost to the consumer.

NHTSA complaint #11763355 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

I randomly received a series of 6 warning messages when starting the car on 9/3/26. They were all warnings related to the automatic safety features such as lane departure, collision detection, auto bright lights, etc.I took it to the dealer on 9/4/26 & they diagnosed an internal failure with a multi-purpose camera embedded in the rearview mirror. The dealer ordered a new part, installed and reprogrammed and recalibrated the camera. This vehicle has been owned only by me, is kept in a garage away from weather exposure, there is no reason for this part to fail on a 6 year old car with a hefty cost to the consumer.

NHTSA complaint #11763355 — an unverified report by a vehicle owner.

LANE DEPARTURE: WARNING

I randomly received a series of 6 warning messages when starting the car on 9/3/26. They were all warnings related to the automatic safety features such as lane departure, collision detection, auto bright lights, etc.I took it to the dealer on 9/4/26 & they diagnosed an internal failure with a multi-purpose camera embedded in the rearview mirror. The dealer ordered a new part, installed and reprogrammed and recalibrated the camera. This vehicle has been owned only by me, is kept in a garage away from weather exposure, there is no reason for this part to fail on a 6 year old car with a hefty cost to the consumer.

NHTSA complaint #11763355 — an unverified report by a vehicle owner.

AIR BAGS

As per the attached there is a recall on this for the airbags and you are in charge of this On Sunday XXX I was driving in [XXX] and suddenly my air bags deployed. (all driver side airbags from front to back, not the steering wheel). I took the vehicle into a body shop they reached out to my insurance for a claim. On XXX my insurer send down an adjusted who inspected the vehicle and denied the claim as the car had no impact and its its not an accident it’s a manufactures defect. On Wednesday 8/5 we took the van into Honda dealer of [XXX]. [XXX] opened the case. I called on Friday and she told me case is being handled by [XXX] On Monday I called [XXX] she said I need to speak to [XXX]. I called [XXX] numerous times and left him messages with no response. For lack of a choice I sent my wife into the dealership to speak to [XXX]. He said its not his job to take care of this I need to reach out to Honda via [XXX]. She asked him why he didn’t call and he did not respond Just said I can take my car back if I want. I called Honda and told them my story they said they will open a case and they gave me a case number. This was a few weeks ago I don’t recall exact date. I called numerous to follow up and both times I was told told case has not been assigned yet but they will accelerate the case. after many times they finally said the opened a case. i should call Honda [XXX]. i drove down and went to [XXX] and he confirmed he was asked in email to say what happenned. still dont have anything. i am more than 5 weeks without a car and need to share my car with my wife and taking uber to work and all i am getting is run around with no clear answer please help me INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11762755 — an unverified report by a vehicle owner.

LANE DEPARTURE: BLIND SPOT DETECTION

​I am writing to issue a formal complaint regarding gross negligence, logistics failures, and deceptive service practices surrounding mandatory recall work on my 2020 Honda Odyssey. ​1. Failure to Complete Recall Software Work After Overnight Retention On Tuesday, September 1, your service department texted stating: "the software update did not finish. We do need it overnight." We agreed to leave the vehicle. However, upon pickup, the infotainment display confirmed that the update was never completed and remains stuck at Step 5/6 (System Update 24084.7 / Front Control Box B.1.4.6). Retaining a customer's vehicle overnight under the guise of completing software work and returning it unfinished is a direct misrepresentation of labor performed. ​2. Extreme Logistics Failure and Disregard for Customer Time At 12:55 PM on Wednesday, September 2, your department texted: "Ready to go now!" My wife arrived promptly, yet your staff forced her to wait until 2:40 PM—nearly two hours later—before physically releasing the car. This gross delay caused her to miss our children’s school pickup, forcing me to leave my workplace unexpectedly to handle child transportation due to your operational incompetence. ​3. Cascading Network Faults and Critical Safety Systems Disabled Prior to service, the dashboard displayed minor Sensing suite warnings, for which your department quoted an exorbitant $250 diagnostic fee. Upon picking up the vehicle, the dashboard warning count escalated from 5 to approximately 9 active system failures. Due to the interrupted ECU software installation corrupting the CAN-BUS network, the following primary vehicle controls are now completely inoperable: ​Supplemental Restraint System (SRS / Airbag) (Newly triggered post-service) ​Vehicle Stability Assist (VSA) System ​Automatic Brake Hold System ​Electric Parking Brake (EPB) System ​Electric Power Steering (EPS) ​Hill Start Assist ​Honda Sensing Suite (Lane Departure, Collision Mitigation, Road Departure) ​Releas

NHTSA complaint #11761879 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

​I am writing to issue a formal complaint regarding gross negligence, logistics failures, and deceptive service practices surrounding mandatory recall work on my 2020 Honda Odyssey. ​1. Failure to Complete Recall Software Work After Overnight Retention On Tuesday, September 1, your service department texted stating: "the software update did not finish. We do need it overnight." We agreed to leave the vehicle. However, upon pickup, the infotainment display confirmed that the update was never completed and remains stuck at Step 5/6 (System Update 24084.7 / Front Control Box B.1.4.6). Retaining a customer's vehicle overnight under the guise of completing software work and returning it unfinished is a direct misrepresentation of labor performed. ​2. Extreme Logistics Failure and Disregard for Customer Time At 12:55 PM on Wednesday, September 2, your department texted: "Ready to go now!" My wife arrived promptly, yet your staff forced her to wait until 2:40 PM—nearly two hours later—before physically releasing the car. This gross delay caused her to miss our children’s school pickup, forcing me to leave my workplace unexpectedly to handle child transportation due to your operational incompetence. ​3. Cascading Network Faults and Critical Safety Systems Disabled Prior to service, the dashboard displayed minor Sensing suite warnings, for which your department quoted an exorbitant $250 diagnostic fee. Upon picking up the vehicle, the dashboard warning count escalated from 5 to approximately 9 active system failures. Due to the interrupted ECU software installation corrupting the CAN-BUS network, the following primary vehicle controls are now completely inoperable: ​Supplemental Restraint System (SRS / Airbag) (Newly triggered post-service) ​Vehicle Stability Assist (VSA) System ​Automatic Brake Hold System ​Electric Parking Brake (EPB) System ​Electric Power Steering (EPS) ​Hill Start Assist ​Honda Sensing Suite (Lane Departure, Collision Mitigation, Road Departure) ​Releas

NHTSA complaint #11761879 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

​I am writing to issue a formal complaint regarding gross negligence, logistics failures, and deceptive service practices surrounding mandatory recall work on my 2020 Honda Odyssey. ​1. Failure to Complete Recall Software Work After Overnight Retention On Tuesday, September 1, your service department texted stating: "the software update did not finish. We do need it overnight." We agreed to leave the vehicle. However, upon pickup, the infotainment display confirmed that the update was never completed and remains stuck at Step 5/6 (System Update 24084.7 / Front Control Box B.1.4.6). Retaining a customer's vehicle overnight under the guise of completing software work and returning it unfinished is a direct misrepresentation of labor performed. ​2. Extreme Logistics Failure and Disregard for Customer Time At 12:55 PM on Wednesday, September 2, your department texted: "Ready to go now!" My wife arrived promptly, yet your staff forced her to wait until 2:40 PM—nearly two hours later—before physically releasing the car. This gross delay caused her to miss our children’s school pickup, forcing me to leave my workplace unexpectedly to handle child transportation due to your operational incompetence. ​3. Cascading Network Faults and Critical Safety Systems Disabled Prior to service, the dashboard displayed minor Sensing suite warnings, for which your department quoted an exorbitant $250 diagnostic fee. Upon picking up the vehicle, the dashboard warning count escalated from 5 to approximately 9 active system failures. Due to the interrupted ECU software installation corrupting the CAN-BUS network, the following primary vehicle controls are now completely inoperable: ​Supplemental Restraint System (SRS / Airbag) (Newly triggered post-service) ​Vehicle Stability Assist (VSA) System ​Automatic Brake Hold System ​Electric Parking Brake (EPB) System ​Electric Power Steering (EPS) ​Hill Start Assist ​Honda Sensing Suite (Lane Departure, Collision Mitigation, Road Departure) ​Releas

NHTSA complaint #11761879 — an unverified report by a vehicle owner.

LATCHES/LOCKS/LINKAGES

The contact owns a 2020 Honda Odyssey. The contact stated that while driving approximately 60 MPH, the rear hatch tailgate door opened unintendedly. The vehicle was previously taken to the local mechanic who diagnosed the vehicle with electronic tailgate door control module failure, which was caused by water intrusion from the roof drainage system. The control module was replaced but the failure reoccurred on two other occasions, and the electronic tailgate door control module was replaced by the owner. The local dealer and manufacturer were notified of the failures, but no assistance was offered. The failure mileage was 50,000.

NHTSA complaint #11761236 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: WARNINGS

Safety mitigation compoments failure that started as intermitent issues and now is consistent. Warning lights come on for Adaptive cruise control failure, Forward collision failure, Lane departure warning failure, high beam failure, lane keep assist failure and others all link back to the DTC U3000-49 internal multipurpose camera unit failure. This compenet failure puts all oppcpants and other vehicles at risk as driver have become reliant on all feature working properly to enhance safety for all. The problem has been diagnose and inspected by two different dealerships. No accident or vehicle comprimised, the camera component just fails and have talked to two other familes that have had same issue. The issues started as a inteitent flsh of all the warning lights and that moved to a constant issue. Currently you can drive the vehicle for a various amount of time and eventually the lights will go on or the dash will be lit up like a christmas tree as soon as you turn it on. Concerned as this is a vehicle that a majority of Moms and kids drive in, as is the case for our familiy.

NHTSA complaint #11761197 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

Safety mitigation compoments failure that started as intermitent issues and now is consistent. Warning lights come on for Adaptive cruise control failure, Forward collision failure, Lane departure warning failure, high beam failure, lane keep assist failure and others all link back to the DTC U3000-49 internal multipurpose camera unit failure. This compenet failure puts all oppcpants and other vehicles at risk as driver have become reliant on all feature working properly to enhance safety for all. The problem has been diagnose and inspected by two different dealerships. No accident or vehicle comprimised, the camera component just fails and have talked to two other familes that have had same issue. The issues started as a inteitent flsh of all the warning lights and that moved to a constant issue. Currently you can drive the vehicle for a various amount of time and eventually the lights will go on or the dash will be lit up like a christmas tree as soon as you turn it on. Concerned as this is a vehicle that a majority of Moms and kids drive in, as is the case for our familiy.

NHTSA complaint #11761197 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Safety mitigation compoments failure that started as intermitent issues and now is consistent. Warning lights come on for Adaptive cruise control failure, Forward collision failure, Lane departure warning failure, high beam failure, lane keep assist failure and others all link back to the DTC U3000-49 internal multipurpose camera unit failure. This compenet failure puts all oppcpants and other vehicles at risk as driver have become reliant on all feature working properly to enhance safety for all. The problem has been diagnose and inspected by two different dealerships. No accident or vehicle comprimised, the camera component just fails and have talked to two other familes that have had same issue. The issues started as a inteitent flsh of all the warning lights and that moved to a constant issue. Currently you can drive the vehicle for a various amount of time and eventually the lights will go on or the dash will be lit up like a christmas tree as soon as you turn it on. Concerned as this is a vehicle that a majority of Moms and kids drive in, as is the case for our familiy.

NHTSA complaint #11761197 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The contact owns a 2020 Honda Odyssey. The contact stated that the Traction Control, Adaptive Cruise Control, Lane Keeping Assist System, and Road Departure Mitigation warning lights illuminated. The vehicle was taken to a dealer, where the cause of the failure could not be determined. The contact continued to drive the vehicle as it passed state inspection. While driving approximately 65-70 MPH, the cruise control suddenly failed, requiring the contact to manually steer the vehicle. Additionally, the Collision Mitigation Braking System, battery, and ABS warning lights illuminated. The contact stated that the ABS light illuminated after the brake pads were recently replaced, and the ADAS calibration was not performed. The vehicle was taken back to a dealer, who informed the contact that the monocular camera burned out due to windshield brackets; however, the contact stated the failures occurred prior to the windshield replacement. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

NHTSA complaint #11760837 — an unverified report by a vehicle owner.

SERVICE BRAKES, HYDRAULIC

The contact owns a 2020 Honda Odyssey. The contact stated that the Traction Control, Adaptive Cruise Control, Lane Keeping Assist System, and Road Departure Mitigation warning lights illuminated. The vehicle was taken to a dealer, where the cause of the failure could not be determined. The contact continued to drive the vehicle as it passed state inspection. While driving approximately 65-70 MPH, the cruise control suddenly failed, requiring the contact to manually steer the vehicle. Additionally, the Collision Mitigation Braking System, battery, and ABS warning lights illuminated. The contact stated that the ABS light illuminated after the brake pads were recently replaced, and the ADAS calibration was not performed. The vehicle was taken back to a dealer, who informed the contact that the monocular camera burned out due to windshield brackets; however, the contact stated the failures occurred prior to the windshield replacement. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

NHTSA complaint #11760837 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE

The contact owns a 2020 Honda Odyssey. The contact stated that the Traction Control, Adaptive Cruise Control, Lane Keeping Assist System, and Road Departure Mitigation warning lights illuminated. The vehicle was taken to a dealer, where the cause of the failure could not be determined. The contact continued to drive the vehicle as it passed state inspection. While driving approximately 65-70 MPH, the cruise control suddenly failed, requiring the contact to manually steer the vehicle. Additionally, the Collision Mitigation Braking System, battery, and ABS warning lights illuminated. The contact stated that the ABS light illuminated after the brake pads were recently replaced, and the ADAS calibration was not performed. The vehicle was taken back to a dealer, who informed the contact that the monocular camera burned out due to windshield brackets; however, the contact stated the failures occurred prior to the windshield replacement. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

NHTSA complaint #11760837 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR

The contact owns a 2020 Honda Odyssey. The contact stated that five days after the vehicle was repaired under NHTSA Campaign Number: 26V332000 (Air Bags), while starting the vehicle, five warning lights were displayed. The Lane Assist warning light and the cruise control warning light was illuminated. The dealer was contacted, and the vehicle was diagnosed with a front-facing camera failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 55,000.

NHTSA complaint #11761043 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

The multipurpose camera located behind the rear view mirror gets too hot and has errors and then fails and is expensive to repair. I had the recall completed for the camera at the rear of the vehicle and then the multipurpose camera in front died the next day.

NHTSA complaint #11760751 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

2020 Odyssey Elite multipurpose camera unit internal electronic failure DTC U3000-49. Component is still installed and available for inspection upon request. Failure disabled Honda Sensing safety systems: Adaptive Cruise Control, Lane Keeping Assist, Lane Departure Warning, Forward Collision Warning, Collision Mitigation Braking, Road Departure Mitigation, Automatic Emergency Braking, and Auto High-Beam. Dash showed Honda Sensing system failure warnings. No crash, no injury. Vehicle remains drivable but without active safety features, increasing risk of crash, especially on highway. Dealer confirmed failure and reproduced it, recommended camera replacement plus ADAS static/dynamic calibration, quoted $2,243. No prior symptoms, no accident, no damage, well-maintained. First warnings appeared Aug 2026 and stayed on continuously. Manufacturer was notified and denied goodwill coverage, stated out of warranty. This is a known widespread defect — same U3000-49 failure documented in NHTSA complaints 11615376, 11584269, 11603801 for 2018-2020 Odyssey, Art's Automotive public statement on pattern, YouTube coverage 2016-2021, and eBay repair market with one seller showing 485 repairs for this exact camera and 111 watchers. Similar to prior Honda backup camera recall. Request NHTSA investigation / recall consideration.

NHTSA complaint #11759849 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

2020 Odyssey Elite multipurpose camera unit internal electronic failure DTC U3000-49. Component is still installed and available for inspection upon request. Failure disabled Honda Sensing safety systems: Adaptive Cruise Control, Lane Keeping Assist, Lane Departure Warning, Forward Collision Warning, Collision Mitigation Braking, Road Departure Mitigation, Automatic Emergency Braking, and Auto High-Beam. Dash showed Honda Sensing system failure warnings. No crash, no injury. Vehicle remains drivable but without active safety features, increasing risk of crash, especially on highway. Dealer confirmed failure and reproduced it, recommended camera replacement plus ADAS static/dynamic calibration, quoted $2,243. No prior symptoms, no accident, no damage, well-maintained. First warnings appeared Aug 2026 and stayed on continuously. Manufacturer was notified and denied goodwill coverage, stated out of warranty. This is a known widespread defect — same U3000-49 failure documented in NHTSA complaints 11615376, 11584269, 11603801 for 2018-2020 Odyssey, Art's Automotive public statement on pattern, YouTube coverage 2016-2021, and eBay repair market with one seller showing 485 repairs for this exact camera and 111 watchers. Similar to prior Honda backup camera recall. Request NHTSA investigation / recall consideration.

NHTSA complaint #11759849 — an unverified report by a vehicle owner.

LANE DEPARTURE: ASSIST

2020 Odyssey Elite multipurpose camera unit internal electronic failure DTC U3000-49. Component is still installed and available for inspection upon request. Failure disabled Honda Sensing safety systems: Adaptive Cruise Control, Lane Keeping Assist, Lane Departure Warning, Forward Collision Warning, Collision Mitigation Braking, Road Departure Mitigation, Automatic Emergency Braking, and Auto High-Beam. Dash showed Honda Sensing system failure warnings. No crash, no injury. Vehicle remains drivable but without active safety features, increasing risk of crash, especially on highway. Dealer confirmed failure and reproduced it, recommended camera replacement plus ADAS static/dynamic calibration, quoted $2,243. No prior symptoms, no accident, no damage, well-maintained. First warnings appeared Aug 2026 and stayed on continuously. Manufacturer was notified and denied goodwill coverage, stated out of warranty. This is a known widespread defect — same U3000-49 failure documented in NHTSA complaints 11615376, 11584269, 11603801 for 2018-2020 Odyssey, Art's Automotive public statement on pattern, YouTube coverage 2016-2021, and eBay repair market with one seller showing 485 repairs for this exact camera and 111 watchers. Similar to prior Honda backup camera recall. Request NHTSA investigation / recall consideration.

NHTSA complaint #11759849 — an unverified report by a vehicle owner.

AIR BAGS

when I start the car, I get 8 or so warnings: Adaptive cruise control, Automatic emergency braking, forward Collision warning, lane departure warning, lane keeping assistance, etc. the air bag warning for passenger also blinks. the dealer indicates this is a faulty front camera and will require about $2500 to fix it.

NHTSA complaint #11758803 — an unverified report by a vehicle owner.

LANE DEPARTURE: BLIND SPOT DETECTION

multipurpose camera stopped working. no direct physical damage to camera so it shouldn't need replacement after 6 years. others with honda odyssey have reported similar defect.

NHTSA complaint #11758675 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: WARNINGS

multipurpose camera stopped working. no direct physical damage to camera so it shouldn't need replacement after 6 years. others with honda odyssey have reported similar defect.

NHTSA complaint #11758675 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

when I start the car, I get 8 or so warnings: Adaptive cruise control, Automatic emergency braking, forward Collision warning, lane departure warning, lane keeping assistance, etc. the air bag warning for passenger also blinks. the dealer indicates this is a faulty front camera and will require about $2500 to fix it.

NHTSA complaint #11758803 — an unverified report by a vehicle owner.

LANE DEPARTURE: ASSIST

multipurpose camera stopped working. no direct physical damage to camera so it shouldn't need replacement after 6 years. others with honda odyssey have reported similar defect.

NHTSA complaint #11758675 — an unverified report by a vehicle owner.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

when I start the car, I get 8 or so warnings: Adaptive cruise control, Automatic emergency braking, forward Collision warning, lane departure warning, lane keeping assistance, etc. the air bag warning for passenger also blinks. the dealer indicates this is a faulty front camera and will require about $2500 to fix it.

NHTSA complaint #11758803 — an unverified report by a vehicle owner.