2021 Honda Odyssey Maintenance Schedule
Manufacturer-recommended service intervals for the Maintenance Minder and open recall alerts for your 2021 Honda Odyssey.
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How Honda schedules service: Maintenance Minder
Honda vehicles use the Maintenance Minder system — your dashboard displays a Code A (oil change) or Code B (oil change plus inspections) along with sub-codes 1-6 for additional services. Intervals adjust based on how you drive. The schedule below reflects Honda's underlying targets.
8 Open Recalls
Source: NHTSAFUEL SYSTEM, GASOLINE:STORAGE
Campaign #21V010000 · 14/01/2021
FUEL SYSTEM, GASOLINE:STORAGE
Campaign #21V010000 · 14/01/2021
Issue: 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.
Risk: A fuel leak in the presence of an ignition source may increase the risk of fire.
Fix: 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.
VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
Campaign #23V174000 · 16/03/2023
VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
Campaign #23V174000 · 16/03/2023
Issue: 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."
Risk: Detached mirror glass can reduce driver visibility, increasing the risk of a crash.
Fix: 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.
BACK OVER PREVENTION:DISPLAY FUNCTION
Campaign #23V431000 · 15/06/2023
BACK OVER PREVENTION:DISPLAY FUNCTION
Campaign #23V431000 · 15/06/2023
Issue: 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."
Risk: A rearview camera that does not display an image can reduce the driver's rear view, increasing the risk of a crash or injury.
Fix: 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.
AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER
Campaign #24V064000 · 01/02/2024
AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER
Campaign #24V064000 · 01/02/2024
Issue: 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.
Risk: An air bag that deploys unintentionally during a crash can increase the risk of injury.
Fix: 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.
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Campaign #23V858000 · 18/12/2023
FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
Campaign #23V858000 · 18/12/2023
Issue: 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.
Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Fix: 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.
EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:LATCH/ANCHOR:
Campaign #25V877000 · 17/12/2025
EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:LATCH/ANCHOR:
Campaign #25V877000 · 17/12/2025
Issue: Vantage Mobility, LLC (VM) is recalling certain 2021-2026 Honda Odyssey, 2021-2025 Chrysler Pacifica, and Toyota Sienna vehicles equipped with QRT-Deluxe and QRT-Max wheelchair restraints. The retractors may not lock, preventing the wheelchair from being properly secured.
Risk: An unsecured wheelchair can move during transit, increasing the risk of injury.
Fix: Dealers will inspect and replace the retractors, free of charge. Owner notification letters was mailed January 27, 2026. Owners may contact Vantage Mobility customer service at 1-800-488-9082.
AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE:SOFTWARE
Campaign #26V227000 · 09/04/2026
AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE:SOFTWARE
Campaign #26V227000 · 09/04/2026
Issue: 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.
Risk: Air bags that deploy unexpectedly can increase the risk of injury.
Fix: 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 were mailed May 27, 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
Campaign #26V332000 · 21/05/2026
AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER
Campaign #26V332000 · 21/05/2026
Issue: Honda (American Honda Motor Co.) is recalling certain 2018-2021, 2023 Acura TLX, 2019-2024 RDX, 2017-2020, 2022-2026 MDX, 2017-2021, 2023, 2025 Honda Ridgeline, 2017-2022 Pilot, 2019-2021 Passport, 2018-2026 Odyssey, 2019-2022 Insight, 2019-2021 HR-V, 2018-2020 Fit, 2020-2022 CR-V Hybrid, 2017-2022 CR-V, 2017-2018, 2021 Civic Type R, 2017-2021 Civic hatchback, 2016-2020 Civic coupe, 2016-2022 Civic, 2017-2022 Accord Hybrid, and 2016-2022 Accord vehicles. The front passenger seat weight sensor may crack and short circuit, which can cause the air bags to deploy unintentionally during a crash.
Risk: Air bags that deploy unintentionally during a crash increase the risk of injury.
Fix: Dealers will replace the seat weight sensors, free of charge. Owner notification letters are expected to be mailed July 6, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are BOL, WO9, OOA, WOM, XOH, NOC, POD, BOE, UOF, POB, EOG, AOI, QO8, TOJ, DO7, and SOK. This recall expands previous NHTSA recall number 24V064. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning May 29, 2026.
Essential maintenance
Critical for safety and preventing major damage
Engine Oil & Filter (Code A)
Every 7,500 miReplace 0W-20 full-synthetic oil and filter. The Maintenance Minder triggers Code A between 7,500 and 10,000 miles depending on driving conditions.
Estimated cost — typical U.S. ranges
Dealer
~$120–$160
Shop
~$85–$115
DIY
~$25–$55
Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.
Tire Rotation (Sub-code 1)
Every 7,500 miRotate tires front-to-back to even out wear. Honda triggers Sub-code 1 alongside every other oil change.
Estimated cost — typical U.S. ranges
Dealer
~$85
Shop
~$60
DIY
Free
Often free at the shop where you bought the tires — worth asking before paying.
Brake Inspection (Code B)
Every 15,000 miInspect brake pads, rotors, and parking brake. Code B includes a multi-point inspection of brakes, suspension, and fluids.
Estimated cost — typical U.S. ranges
Dealer
~$85
Shop
~$60
DIY
Free
Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.
Brake Fluid (Sub-code 5)
Every 45,000 miReplace DOT 3 brake fluid every 3 years regardless of mileage to prevent moisture absorption and corrosion of ABS components.
Estimated cost — typical U.S. ranges
Dealer
~$180–$200
Shop
~$125–$140
DIY
~$10–$25
DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.
Important maintenance
Keeps your vehicle running smoothly and efficiently
Automatic Transmission / CVT Fluid (Sub-code 3)
Every 30,000 miReplace ATF or CVT fluid. Honda CVT models (Civic, HR-V, Accord LX) use Honda HCF-2 — do not substitute. The Maintenance Minder triggers earlier under heavy stop-and-go.
Estimated cost — typical U.S. ranges
Dealer
~$330–$500
Shop
~$235–$355
DIY
~$60–$180
Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.
Rear Differential Fluid (AWD models, Sub-code 5)
Every 30,000 miAWD CR-V, Pilot, Passport, Ridgeline: replace rear diff fluid every 30,000 miles, sooner if towing.
Estimated cost — typical U.S. ranges
Dealer
~$150–$195
Shop
~$105–$135
DIY
~$20–$50
Drain plug + fill plug — straightforward DIY. AWD vehicles have two; budget for both.
Engine Air Filter (Sub-code 4)
Every 30,000 miReplace the engine air filter every 30,000 miles. Honda uses a long-life cellulose element on most port-injected engines.
Estimated cost — typical U.S. ranges
Dealer
~$60–$95
Shop
~$45–$70
DIY
~$15–$40
5-minute job on most cars; the airbox lid usually has clips, no tools needed.
Spark Plugs (Sub-code 6)
Every 105,000 miHonda uses iridium-tipped plugs rated for 100,000+ miles. Replace at 105,000 miles or whenever Sub-code 6 displays.
Estimated cost — typical U.S. ranges
Dealer
~$285–$390
Shop
~$200–$275
DIY
~$25–$100
Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.
Engine Coolant (Sub-code 5)
Every 60,000 miHonda Long-Life Type 2 (blue) coolant: first change at 120,000 miles, then every 60,000 miles. Do not mix with other coolant types.
Estimated cost — typical U.S. ranges
Dealer
~$285–$330
Shop
~$200–$235
DIY
~$25–$60
Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.
Recommended maintenance
Extends the life of your vehicle and improves comfort
Cabin Air Filter (Sub-code 3)
Every 15,000 miReplace the cabin air filter — accessible behind the glove box on most Hondas. Honda recommends 15,000 miles in dusty conditions, longer in clean climates.
Estimated cost — typical U.S. ranges
Dealer
~$60–$95
Shop
~$45–$70
DIY
~$15–$40
Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.
Valve Clearance Adjustment (Sub-code 6)
Every 105,000 miInspect and adjust valve clearances at 105,000 miles. Critical on K-series and L-series engines to prevent valve recession.
Estimated cost — typical U.S. ranges
Dealer
~$495–$535
Shop
~$345–$375
DIY
Pro only
Mechanical-bucket valvetrains (many Honda 4-cyls, older Toyotas) need this. Hydraulic lifters don't. Shop work — feeler-gauge precision required.
Timing Chain — No Replacement
On condition / lifetimeModern Honda engines (K-series, L-series, R-series, plus all Earth Dreams 1.5T and 2.0T) use a timing chain designed to last the life of the engine. No scheduled replacement.
Estimated cost — typical U.S. ranges
Dealer
~$85
Shop
~$60
DIY
Pro only
Timing chains are normally lifetime. Listen for rattle on cold start — that's the actionable signal. Replacement is major work, quote separately.
Known issues for this vehicle
What drivers and federal regulators have officially reported about the 2021 Honda Odyssey.
7 active NHTSA investigations
Source: NHTSANo Restart After Auto Start/Stop Engages
Action #EA25004 · opened Mar 26, 2025
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to r…
No Restart After Auto Start/Stop Engages
Action #EA25004 · opened Mar 26, 2025
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to r…
No Restart After Auto Start/Stop Engages
Action #EA25004 · opened Mar 26, 2025
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to r…
No Restart After Auto Start/Stop Engages
Action #EA25004 · opened Mar 26, 2025
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to r…
Inadvertent Deployment of Side Air Bags
Action #PE25018 · opened Oct 28, 2025
The Office of Defects Investigation (ODI) has received 18 complaints, and some Early Warning Reporting (EWR) field and death & injury reports alleging inadvertent air bag deployment. These inadvertent deployments relate to the side curtain and/or side thorax air bags in model yea…
Inadvertent Deployment of Side Air Bags
Action #PE25018 · opened Oct 28, 2025
The Office of Defects Investigation (ODI) has received 18 complaints, and some Early Warning Reporting (EWR) field and death & injury reports alleging inadvertent air bag deployment. These inadvertent deployments relate to the side curtain and/or side thorax air bags in model yea…
Inadvertent Deployment of Side Air Bags
Action #PE25018 · opened Oct 28, 2025
The Office of Defects Investigation (ODI) has received 18 complaints, and some Early Warning Reporting (EWR) field and death & injury reports alleging inadvertent air bag deployment. These inadvertent deployments relate to the side curtain and/or side thorax air bags in model yea…
Reported to NHTSA
NHTSA has 116 complaints on file for the 2021 Honda Odyssey (2021-02 → 2026-06). We haven't reviewed and grouped them yet for this specific YMM — for now, the full list lives on NHTSA.
Top reported components: ELECTRICAL SYSTEM (42) · UNKNOWN OR OTHER (25) · FORWARD COLLISION AVOIDANCE (19)
Issues on other model years
Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Jun 13, 2026. Investigation data refreshed Jun 13, 2026.
We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.
Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.
How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.
This maintenance schedule for the 2021 Honda Odyssey reflects Honda's published service intervals and the Maintenance Minder system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.