2021 Honda Odyssey
Vehicle Specs & Maintenance Data
The 2021 Honda Odyssey maintenance specs on this page cover the key fluids, torque values, and wear items you need for routine service. Use these numbers as a quick reference when performing oil changes, tire rotations, brake jobs, and other scheduled maintenance on your Honda Odyssey.
For oil changes, the 2021 Honda Odyssey takes 0W-20 Full Synthetic motor oil with a capacity of 4.5 quarts. Brake fluid type is DOT 3, the recommended coolant is Blue Type 2 Coolant (OAT), and transmission fluid is ATF DW-1. Always use the manufacturer-recommended fluids to maintain warranty coverage and engine longevity.
When mounting wheels on the Honda Odyssey, torque the lug nuts to 94 ft-lbs using a calibrated torque wrench. Over- or under-torquing can lead to warped brake rotors or loose wheels. Re-torque after 50 to 100 miles on newly installed wheels.
Owners of the 2021 Honda Odyssey have reported 5 common issues including "Power Sliding Door Malfunction", "Fuel Pump Failure (Recall)" and "Second-Row Seat Rail Locking Failure (Recall)". Scroll down to the Diagnostics tab for detailed descriptions, solutions, and estimated repair costs.
There are 6 NHTSA safety recalls on file for the 2021 Honda Odyssey. Check the Recalls tab below for full details.
Specifications on this page are compiled from multiple publicly available sources including manufacturer documentation, NHTSA data, and automotive databases. Always cross-reference with your owner's manual or official factory documentation before purchasing parts or performing any service.
The 2021 Honda Odyssey uses 0W-20 Full Synthetic motor oil (4.5 qt capacity), requires lug nuts torqued to 94 ft-lbs, takes DOT 3 brake fluid.
Manufacturer-recommended maintenance schedule for the 2021 Honda Odyssey. Always verify intervals against your owner's manual.
Enter a diagnostic trouble code to see causes, symptoms, and fixes for the 2021 Honda Odyssey.
Common problems reported by 2021 Honda Odyssey owners, with recommended fixes and estimated repair costs.
Power Sliding Door Malfunction
The power sliding doors may fail to open, fail to close, or stop and reverse direction mid-travel. The issue can affect one or both sides and is often intermittent. Some owners report the door opening on its own or the motor running without the door moving.
American Honda issued a service bulletin for 2020-2022 Odyssey models addressing power sliding door failures. The fix may involve replacing the door latch assembly, roller mechanism, or control module. In some cases, the wiring harness in the door track area needs repair.
Est. Cost: $200 - $800 (often covered under warranty)Fuel Pump Failure (Recall)
The low-pressure fuel pump inside the fuel tank may fail, causing the engine to stall while driving. This affects a broad range of Honda models. Symptoms include engine hesitation, loss of power, and sudden shutoff without warning.
Honda issued recall 23V-858 to replace the fuel pump module free of charge. Contact your dealer with your VIN to verify eligibility. Do not delay this repair as engine stalling poses a serious safety risk.
Est. Cost: Covered under recallSecond-Row Seat Rail Locking Failure (Recall)
The second-row outboard seats may have deformed seat rail locking mechanisms that prevent the seat rails from locking securely into position. An unsecured seat can move unexpectedly during normal driving or in a crash, increasing the risk of injury to occupants.
Honda issued a recall to replace both second-row outboard seat frames free of charge. Contact your dealer with your VIN to schedule the repair. Do not use the second-row outboard seating positions until the recall is completed.
Est. Cost: Covered under recallSide-View Mirror Glass Detachment (Recall)
The heating pads behind both side-view mirrors may not be bonded properly, allowing the mirror glass to detach from the mirror housing while driving. Loss of a side-view mirror reduces driver visibility and creates a road hazard.
Honda issued a recall to replace both left and right side-view mirror assemblies free of charge. Contact your dealer with your VIN to check eligibility.
Est. Cost: Covered under recallFront Damper Squeaking and Creaking Noise
A squeaking or creaking noise is heard from the front suspension when driving over bumps, speed bumps, or uneven road surfaces. The noise is caused by friction between the front damper body and the dust boot or bump stop, and is more pronounced in cold weather.
Honda issued a TSB for 2018-2024 Odyssey models. The dealer will apply silicone lubricant to the contact surfaces or replace the front damper dust boots with updated parts. The repair typically takes about one hour per side.
Est. Cost: $0 - $300 (often covered under warranty)6 NHTSA safety recalls for the 2021 Honda Odyssey. Check your VIN at NHTSA.gov
EQUIPMENT ADAPTIVE/MOBILITY:WHEELCHAIR RESTRAINTS/SECUREMENT:LATCH/ANCHOR:
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.
An unsecured wheelchair can move during transit, increasing the risk of injury.
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:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER
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.
An air bag that deploys unintentionally during a crash can increase the risk of injury.
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
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.
Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
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
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."
A rearview camera that does not display an image can reduce the driver's rear view, increasing the risk of a crash or injury.
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.
VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
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."
Detached mirror glass can reduce driver visibility, increasing the risk of a crash.
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.
FUEL SYSTEM, GASOLINE:STORAGE
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.
A fuel leak in the presence of an ignition source may increase the risk of fire.
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.