The 2020 Odyssey with the 3.5L V6 (standard in US models) is generally solid but has emerging patterns around VCM/cylinder deactivation system failures, transmission fluid cooler line leaks, and some early-production electrical gremlins. The hybrid and 2.4L variants are overseas-market only and rarely seen stateside.
VCM (Variable Cylinder Management) System Failure Leading to Cylinder Head / Lifter Damage
Occasional · high severity
Typical onset: 80,000-140,000 mi
Symptoms: Rough idle, misfires on cylinders 1-3 (the deactivating bank), Check engine light with P0300-series misfire codes, Ticking/tapping noise from valve train, especially on cold start, Oil consumption increase
Fix: VCM solenoid/rocker arm failure fouls plugs and can wipe cam lobes or collapse lifters. Minor cases: VCM solenoid replacement and valve adjustment (3-4 hours). Severe: cylinder head R&R, resurface, new lifters, camshaft inspection/replacement (12-18 hours). Some techs disable VCM with aftermarket tuning to prevent repeat failures.
Estimated cost: $800-1,200 for solenoids/adjustment; $3,500-6,500 for head work with parts
Transmission Oil Cooler Line Leak at Quick-Connect Fittings
Common · medium severity
Typical onset: 60,000-100,000 mi
Symptoms: ATF puddle under front of vehicle, passenger side, Transmission slipping or delayed engagement when fluid gets low, Burnt ATF smell, Low fluid level on dipstick (if accessible)
Fix: The quick-connect plastic fittings on the cooler lines crack or O-rings fail. Replace both cooler lines (they're cheap, do both while you're in there) plus top off ATF. 2-3 hours labor. Sometimes the radiator-integrated cooler itself leaks and requires radiator replacement (add 1-2 hours).
Estimated cost: $400-700 for lines; $800-1,200 if radiator cooler section is leaking
Symptoms: Vibration/shudder during light acceleration at 30-50 mph, Feels like driving over rumble strips, Worse when transmission is warm, No check engine light typically
Fix: Honda issued TSB for this—9-speed ZF transmission fluid formulation issue. First step: drain/fill with Honda ATF-DW1 (3x flush recommended, 1.5 hours total). If that doesn't resolve it, torque converter replacement required (8-10 hours, transmission R&R). Most cases respond to fluid service if caught early.
Estimated cost: $300-450 for triple fluid flush; $2,800-4,200 for torque converter replacement
Rear Camera Intermittent Failure / Black Screen
Occasional · low severity
Symptoms: Backup camera shows black screen or 'Camera unavailable' message, Intermittent—works sometimes, not others, May correlate with cold weather or after car wash, Camera guidelines may freeze on screen
Fix: Two NHTSA recalls addressed this (camera housing moisture intrusion). Check if recall completed. If post-recall failure: camera module replacement—wiring harness connector corrosion is common culprit. Clean connectors first (0.5 hours), replace camera if needed (1.5 hours). Tailgate trim removal required.
Estimated cost: $150-250 for diagnosis/connector service; $500-750 for camera module replacement
Fuel Pump Failure (Low-Pressure In-Tank Pump)
Rare · high severity
Typical onset: 50,000-90,000 mi
Symptoms: No-start condition, cranks but won't fire, Stalling at idle or under load, Rough running, hesitation on acceleration, P0087 (fuel rail pressure too low) code
Fix: Covered by NHTSA recall for some VINs (check eligibility). If not recalled or out of warranty: in-tank fuel pump module replacement. Requires dropping the fuel tank. 3-4 hours labor. Honda extended warranty on some units to 10 years/150k miles—verify before paying out of pocket.
Estimated cost: $800-1,400 if not covered by recall/warranty
Engine Mount (Transmission Mount Specifically) Deterioration
Common · low severity
Typical onset: 70,000-110,000 mi
Symptoms: Clunk when shifting from park to drive or reverse, Excessive vibration at idle in gear, Engine rocks noticeably when revving in park, Transmission 'thud' on acceleration
Fix: The right-side transmission mount (hydraulic) wears out from the weight of the 9-speed. Replacement is straightforward—support powertrain, unbolt old mount, bolt in new. 1.5-2 hours. While you're there, inspect upper torque rod mount (also prone to tearing). Replace in pairs if both are soft.
Estimated cost: $350-600 for transmission mount; $700-1,000 for trans mount + torque rod
Owner tips
Disable VCM with an aftermarket tuner (VCM Muzzler, etc.) if you plan to keep the vehicle past 100k miles—prevents the cylinder deactivation carnage
Change transmission fluid every 30k miles with genuine Honda ATF-DW1, not 'lifetime fill' nonsense—the 9-speed is fluid-sensitive
Check transmission cooler lines and fittings every oil change for seepage—catch leaks early before you grenade the transmission
Keep fuel tank above 1/4—low fuel levels accelerate in-tank pump wear on these
Verify fuel pump and camera recalls have been completed before purchase
Solid family hauler if maintained properly, but the VCM system is a ticking time bomb after 100k—budget for eventual head work or disable it preemptively.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE:SOFTWARE · 26V227000
2026-04-09
Honda (American Honda Motor Co.) is recalling certain 2018-2022 Odyssey vehicles. A software programming error can cause the side and side curtain air bags to deploy unexpectedly.
Consequence: Air bags that deploy unexpectedly can increase the risk of injury.
Remedy: Dealers will reprogram the supplemental restraint system (SRS) electronic control unit (ECU) software or replace the ECU, as necessary, free of charge. Owner notification letters are expected to be mailed May 25, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's number for this recall is UNW. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning April 16, 2026.
The information in your report suggests that Honda (American Honda Motor Co.) may have been aware of this issue more than five business days before filing a report with NHTSA. Please be reminded that under Federal law, this agency is to be notified of all safety defect and/or noncompliance decisions within five business days. 49 CFR 573.6 Significant civil penalties can be assessed for this violation.
AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER · 24V064000
2024-02-01
Honda (American Honda Motor Co.) is recalling certain 2020-2022 Pilot, Accord, Civic sedan, HR-V, Odyssey, 2020 Civic coupe, Fit, 2021-2022 Civic hatchback, 2021 Civic Type R, Insight, 2020-2021 CR-V, CR-V Hybrid, Passport, Ridgeline, Accord Hybrid, 2020 Acura MDX, 2022 Acura MDX, 2020-2022 Acura RDX, and 2020-2021 Acura TLX vehicles. The front passenger seat weight sensor may crack and short circuit, failing to suppress the air bag as intended.
Consequence: An air bag that deploys unintentionally during a crash can increase the risk of injury.
Remedy: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed March 28, 2024, October 18, 2024, and August 2025. This is a phased recall. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for these recalls are XHP and VHQ.
Honda (American Honda Motor Co.) is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX, RLX, TLX, 2019-2022 Honda Insight, Passport, 2020 Honda CR-V Hybrid, 2018-2019 Honda Clarity PHEV, Fit, and 2015-2020 Honda Accord Hybrid, Pilot, Acura NSX vehicles. The fuel pump inside the fuel tank may fail.
Consequence: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Remedy: Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are KGC and KGD. This recall is an expansion of NHTSA recall numbers 21V-215 and 20V-314.
BACK OVER PREVENTION:DISPLAY FUNCTION · 23V431000
2023-06-15
Honda (American Honda Motor Co.) is recalling certain 2018-2023 Odyssey, 2019-2022 Pilot, and 2019-2023 Passport vehicles. Due to a faulty Media Oriented Systems Transport (MOST) communication coaxial cable connector, the rearview camera image may not appear on the display. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Consequence: A rearview camera that does not display an image can reduce the driver's rear view, increasing the risk of a crash or injury.
Remedy: Dealers will replace the MOST cable harness and install a straightening cover over the vehicle cable connector, free of charge. Owner notification letters were mailed July 24, 2023. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are EEL, ZEM, and SFC.
Honda (American Honda Motor Co) is recalling certain 2020-2021 Pilot and Ridgeline, and 2020-2022 Passport and Odyssey vehicles. The heating pads behind both side-view mirrors may not be bonded properly, allowing the mirror glass to detach. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Consequence: Detached mirror glass can reduce driver visibility, increasing the risk of a crash.
Remedy: Dealers will replace both left and right side-view mirrors, free of charge. Owner letters were mailed January 17, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is FE5.
SEAT BELTS:FRONT:BUCKLE ASSEMBLY · 23V158000
2023-03-09
Honda (American Honda Motor Co.) is recalling certain 2017-2020 CR-V, 2018-2019 Accord and Accord Hybrid, 2018-2020 Odyssey, 2019 Insight, and 2019-2020 Acura RDX vehicles. A manufacturing issue with the front seat belts may cause the seat belt buckle channel to interfere with the release button, preventing the seat belt buckle from latching.
Consequence: An unlatched seat belt cannot properly restrain the seat occupant during a crash, increasing their risk of injury.
Remedy: Dealers will replace the driver and front passenger seat belt buckle release buttons or the buckle assemblies as necessary, free of charge. Owner notification letters were mailed April 18, 2023. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are NDA, QDB, BDC, MDD, LD9. TDF, FDG, ODH, YDI, ZDE.
FUEL SYSTEM, GASOLINE:STORAGE · 21V010000
2021-01-14
Braun Corporation (Braun) is recalling certain 2018-2021 Braun-modified Honda Odyssey vehicles. The fuel tank assembly installed by Braun may be susceptible to the fuel tank overfilling into the charcoal canister. If the charcoal canister fills with a sufficient amount of fuel, fuel may leak out.
Consequence: A fuel leak in the presence of an ignition source may increase the risk of fire.
Remedy: Braun will notify owners, and dealers will inspect vehicles. If evidence of a fuel leak is present, a new fuel tank assembly and a new Honda charcoal canister will be installed, free of charge. The recall began February 22, 2021. Owners may contact Braun customer service at 1-800-488-0359.
LATCHES/LOCKS/LINKAGES:DOORS:LATCH · 20V437000
2020-07-28
Honda (America Honda Motor Co.) is recalling certain 2018-2020 Odyssey vehicles. Water may enter the outer door handle cables for the sliding doors. If this occurs, the outer door handle cables may freeze in cold temperatures, preventing the front and rear sliding door latches from securely latching.
Consequence: A power sliding door that fails to latch may open while moving, increasing the risk of injury.
Remedy: Honda will notify owners, and dealers will replace the power sliding door outer handle cables, free of charge. The recall began September 23, 2020. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is A88.
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA · 20V438000
2020-07-28
American Honda Motor Co. (Honda) is recalling certain 2019-2020 Odyssey vehicles. Water may get into the rearview camera mounting holes and enter the camera lens and cause a distorted image, or no image at all. Additionally, if the rearview camera view mode is set to top-down view, or switched from that view to another mode in a bright environment, the image may not display. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rearview Mirrors."
Consequence: A distorted or inoperative rearview camera display can reduce the driver's view of what is behind the vehicle, increasing the risk of a crash.
Remedy: Honda will notify owners, and dealers will replace the rearview camera, free of charge. The recall began September 23, 2020. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is W83.
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA · 20V439000
2020-07-28
Honda (American Honda Motor Co.) is recalling certain 2018-2020 Odyssey, 2019-2020 Passport, and 2019-2021 Pilot vehicles. Incorrect instrument panel control module software can cause the instrument panel to not display critical information, such as engine oil pressure, speedometer, and gear selector position until the next ignition cycle. Additionally, it can prevent the rearview camera image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 101, "Control and Displays" and 111, "Rearview Mirrors."
Consequence: Operating a vehicle without a functioning instrument panel or rearview camera display increases the risk of a crash.
Remedy: Honda will notify owners, and dealers will reprogram the instrument panel control module software, free of charge. The recall began September 23, 2020. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is T89.
ELECTRICAL SYSTEM:SOFTWARE · 20V440000
2020-07-28
Honda (American Honda Motor Co.) is recalling certain 2019-2021 Pilot, 2019-2020 Odyssey and 2019-2020 Passport vehicles. Incorrect central network software programming may cause several errors to occur that can delay or prevent the rearview camera image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rearview Mirrors."
Consequence: A delayed or inoperative rearview camera display can reduce the driver's view of what is behind the vehicle, increasing the risk of a crash.
Remedy: Honda will notify owners that updated software is available. Owners have the option to either follow the mailed instructions to download and update the software for free, or visit a dealer to have the software update performed, free of charge. The recall began September 23, 2020. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is Y7Y.
ELECTRICAL SYSTEM:WIRING · 20V066000
2020-02-06
Honda (American Honda Motor Co.) is recalling certain 2018-2020 Odyssey vehicles. 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.
Consequence: An intermittent electrical short could overheat the wire harness, increasing the risk of a fire.
Remedy: Honda will notify owners, and dealers will inspect the third row seat accessory power outlet wire harness for damage, replacing it as necessary. If no damage is found, the dealer will apply protective tape and re-route the harness. All repairs will be performed free of charge. The recall began March 16, 2020. Owners may contact Honda customer service at 1-888-234-2138. Honda's number for this recall is T6U.
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