This manual provides essential information for 2021 Honda Accord owners, detailing features, operation, maintenance, and safety—crucial for a positive driving experience;
The 2021 Honda Accord continues its legacy as a benchmark mid-size sedan, offering a compelling blend of practicality, reliability, and driving enjoyment. Notable updates for this model year include refined styling with a wider LED headlight design and an updated grille. Available in various trims, the Accord caters to diverse preferences, offering both 1.5L turbocharged and 2.0L turbocharged engine options.
The 2021 Accord prioritizes passenger comfort and boasts a spacious interior. Technology features are abundant, including an available infotainment system with smartphone integration and a wireless charging system (though limited to 2.5A/7.5W output). Safety is paramount, with Honda Sensing suite standard across all trims, providing advanced driver-assistance features.
Your 2021 Honda Accord’s owner’s manual is a vital resource, serving as a comprehensive guide to understanding your vehicle’s features and operation. It details everything from basic controls and safety systems – like Honda Sensing – to maintenance schedules and troubleshooting common issues. Familiarizing yourself with this manual ensures safe and efficient driving.
Ignoring the owner’s manual can lead to improper vehicle operation, potentially causing damage or voiding warranty coverage. It provides crucial information regarding fluid specifications, tire pressure, and the correct procedures for jump-starting the battery. Accessing the manual, whether in print or as a downloadable PDF, empowers you to maximize your Accord’s performance and longevity.

Locate your vehicle’s unique VIN, master key and remote functions, and decipher dashboard symbols for optimal awareness and safe operation of your 2021 Accord.
Your 2021 Honda Accord’s Vehicle Identification Number (VIN) is a unique 17-character code crucial for identification, warranty claims, and vehicle history reports. Locating it is straightforward. You can find the VIN on the driver’s side dashboard, visible through the windshield. It’s also imprinted on the driver’s side doorjamb, on the vehicle registration, and your insurance documents.
Additionally, the VIN is often found on the engine compartment brace and may be present on certain maintenance records. Always verify the VIN matches across all documents to ensure accuracy. Protecting this number is vital, as it’s linked to your vehicle’s complete history and ownership details. Knowing its location ensures easy access when needed for service or legal purposes.
Your 2021 Honda Accord utilizes a sophisticated key and remote control system for convenient access and operation. The remote allows for locking/unlocking doors, activating the panic alarm, and opening the trunk. Battery replacement is essential for continued functionality; refer to the manual for specific instructions. The key operates the ignition and doors manually.
Smart entry functionality, if equipped, enables keyless unlocking and starting. Ensure the key fob battery has sufficient charge for optimal performance. Familiarize yourself with the remote’s button layout and functions. Proper key and remote operation enhances security and simplifies vehicle access. Always keep spare keys in a secure location.
The 2021 Honda Accord’s dashboard features a comprehensive array of symbols and indicators providing crucial vehicle information. Understanding these alerts is vital for safe operation. Warning lights signal potential issues – check engine, oil pressure, battery, and brake system warnings require immediate attention. Indicator lights confirm system activation, such as headlights, turn signals, and cruise control.
Informational displays show data like fuel level, temperature, and odometer readings. Refer to the owner’s manual for a detailed explanation of each symbol’s meaning and appropriate action. Ignoring warning lights can lead to more significant damage. Regularly monitoring the dashboard ensures proactive vehicle maintenance and safety.

This section details how to safely and effectively operate your 2021 Accord, covering starting, driving modes, transmission use, and proper fueling procedures.
Starting your 2021 Honda Accord is straightforward: ensure the parking brake is engaged, insert the key or confirm keyless entry system functionality, and depress the clutch pedal fully (for manual transmissions). Turn the ignition key to the “START” position and release once the engine ignites. Avoid prolonged cranking to prevent starter damage.
To stop the engine, bring the vehicle to a complete halt, shift the transmission into neutral, and engage the parking brake. Turn the ignition key to the “LOCK” position, or press the engine stop/start button if equipped. Always ensure the vehicle is fully stopped before shifting into park or neutral.
The 2021 Honda Accord offers three distinct driving modes: Normal, Sport, and Eco, selectable via a button on the center console. Normal mode provides a balanced driving experience for everyday conditions, optimizing fuel efficiency and performance.
Sport mode enhances throttle response and steering feel, delivering a more engaging and dynamic driving experience. This mode prioritizes performance over fuel economy. Eco mode maximizes fuel efficiency by adjusting engine and transmission settings for gentler acceleration and earlier upshifts.
Experiment with each mode to find the setting that best suits your driving style and current conditions. The selected mode is indicated on the instrument panel.
The 2021 Honda Accord’s 6-speed manual transmission requires smooth and precise clutch and shifter operation for optimal performance. Depress the clutch pedal fully when shifting gears to prevent grinding. Ensure complete clutch engagement when releasing the pedal to avoid stalling.
Downshifting should be performed smoothly, matching engine speed to road speed for a seamless transition. Avoid abrupt downshifts, which can cause instability. Hill starts require coordinating the clutch, throttle, and handbrake to prevent rollback.
Regularly check clutch fluid levels and inspect the clutch disc for wear. Proper technique extends transmission life and enhances driving enjoyment.
The 2021 Honda Accord recommends using 87 octane regular unleaded gasoline for optimal engine performance. However, it is capable of utilizing fuels with higher octane ratings, though it won’t yield noticeable benefits. Avoid fuels containing ethanol exceeding 10% (E10), as higher concentrations can damage fuel system components.
Fuel tank capacity is 12.3 gallons. Always use a clean funnel when refueling to prevent spills. Ensure the fuel filler cap is securely tightened after each fill-up to prevent fuel vapor emissions. Never top off the fuel tank beyond the automatic shut-off point.
Refer to your owner’s manual for a complete list of approved fuel types.

Regular maintenance is vital for your 2021 Accord’s longevity and performance; follow the recommended schedule for oil changes, fluid checks, and tire upkeep.
Maintaining your 2021 Honda Accord according to the recommended schedule is crucial for its reliability and longevity. Every oil change (using the specified grade) should occur every 7,500 to 10,000 miles, depending on driving conditions. Tire rotations are recommended every 5,000 miles to ensure even wear.
Inspect brake pads, rotors, and fluid levels during each oil change. Coolant should be flushed every 30,000 miles, and the transmission fluid every 30,000-60,000 miles. Air filter replacement is typically needed every 15,000-30,000 miles. Regularly check belts and hoses for wear and tear. Following this schedule helps prevent costly repairs and ensures optimal performance.
Regularly checking fluid levels is vital for your 2021 Honda Accord’s health. To check the oil, park on level ground and wait for the engine to cool. Locate the dipstick, wipe it clean, reinsert fully, and then check the level – it should be between the minimum and maximum marks.
For coolant, check the reservoir when the engine is cold; the level should be between the “MIN” and “MAX” lines. Brake fluid is found in a translucent reservoir – ensure it’s near the “MAX” line. Low fluid levels indicate potential leaks, requiring immediate attention from a qualified mechanic.
Maintaining proper tire pressure is crucial for safety, fuel efficiency, and tire longevity in your 2021 Honda Accord. The recommended tire pressure is found on a sticker located on the driver’s side doorjamb – do not use the pressure listed on the tire sidewall.
Check tire pressure monthly and before long trips using a reliable gauge. Regularly inspect tires for wear and tear, including uneven tread wear, cuts, or bulges; Rotate tires every 5,000-7,500 miles to ensure even wear and extend their lifespan. Proper alignment also contributes to even tire wear.
Your 2021 Honda Accord’s battery provides the power to start the engine and operate electrical components. To prolong battery life, avoid leaving lights on when the engine is off and minimize short trips, which don’t allow for full recharging. Corrosion on the terminals should be cleaned regularly with a baking soda and water solution.
If the battery is discharged, jump-starting is possible. Ensure the booster vehicle is not touching your Accord. Connect the cables in the correct order: positive to positive, negative to a grounded metal surface on your vehicle. Follow the proper sequence to avoid damage.

The 2021 Honda Accord prioritizes occupant protection, featuring Honda Sensing, an airbag system, and provisions for secure child safety seat installation for peace of mind.
Honda Sensing is a suite of advanced safety and driver-assistive technologies standard on the 2021 Accord; Collision Mitigation Braking System (CMBS) helps avoid or lessen the severity of frontal collisions, while Road Departure Mitigation System (RDM) assists in steering when detected leaving the road.
Adaptive Cruise Control (ACC) maintains a set speed and following distance. Lane Keeping Assist System (LKAS) helps keep the vehicle centered in its lane. Traffic Sign Recognition System (TSR) displays speed limit and other road sign information. These features enhance driver awareness and contribute to a safer driving experience, but are not substitutes for attentive driving.
The 2021 Honda Accord is equipped with a sophisticated airbag system designed to provide occupant protection in various collision scenarios. This includes front airbags, side airbags, and side curtain airbags. The system intelligently deploys airbags based on the severity and type of impact, working in conjunction with seatbelts for optimal safety.
It’s crucial to understand that airbags are supplemental restraints and are most effective when used with properly fastened seatbelts; Never place rear-facing child seats in the front passenger seat if there is an active front airbag. Refer to the owner’s manual for detailed information regarding airbag system components and safety precautions.
Proper child safety seat installation is paramount for protecting young passengers in your 2021 Honda Accord. The vehicle features LATCH (Lower Anchors and Tethers for CHildren) lower anchors and upper tether anchors in designated seating positions. Always consult both the child safety seat manufacturer’s instructions and the Accord’s owner’s manual for correct installation procedures.
Never place a rear-facing infant seat in front of an active airbag. Ensure the seat is securely fastened and does not move more than one inch side-to-side or front-to-back. Regularly check the installation to confirm it remains secure as the child grows. Prioritize safety and follow all guidelines diligently.

The 2021 Accord boasts an advanced infotainment system, Bluetooth connectivity, and a wireless charging pad (2.5A, 7.5W)—enhancing convenience and connectivity on every journey.
The 2021 Honda Accord’s infotainment system is a central hub for connectivity and control. It typically features a touchscreen display, offering access to audio, navigation, and smartphone integration via Apple CarPlay and Android Auto. Users can seamlessly stream music, make hands-free calls, and utilize voice commands for a safer driving experience.
The system’s interface is designed for intuitive operation, with customizable settings to personalize the user experience. Higher trims may include a larger touchscreen, premium audio systems, and additional features like a Wi-Fi hotspot. Understanding the layout and functionalities of this system is key to maximizing the enjoyment and convenience offered by the 2021 Accord.
Connecting your smartphone to the 2021 Honda Accord via Bluetooth enables hands-free calling, audio streaming, and voice control. To initiate pairing, access the “Phone” menu on the infotainment touchscreen and select “Add Device.” Ensure your phone’s Bluetooth is enabled and discoverable. The Accord will then search for available devices.
Select your phone from the list, and a PIN may appear on both screens – confirm the match to complete pairing. Once connected, you can make calls by voice command or through the touchscreen. Audio streaming is accessible through the “Audio” menu. Managing paired devices and troubleshooting connection issues are also outlined within the infotainment system settings.
The 2021 Honda Accord offers a convenient wireless charging pad located within the center console. This feature supports Qi-compatible smartphones, eliminating the need for cables. However, it’s important to note the system delivers only 2.5A (approximately 7.5W) of power – it is not a fast wireless charger.
Consequently, charging speeds will be slower compared to wired connections or faster wireless chargers. Some users have reported phones becoming warm during charging due to the limited wattage. Cases thicker than 5mm may impede charging. The system is designed primarily for maintaining charge, rather than rapidly replenishing battery levels. Refer to the owner’s manual for a list of compatible devices and optimal placement.

This section details common 2021 Accord issues and solutions, alongside explanations of warning lights—helping owners diagnose and address potential vehicle problems efficiently.
Addressing typical concerns with your 2021 Honda Accord is straightforward with this guide. One frequently reported issue involves the infotainment system occasionally freezing; a simple system reset often resolves this. Some owners have noted the wireless charger generating excessive heat, though it operates at a standard 2.5W – avoid prolonged charging in such instances.
If experiencing difficulty with Bluetooth pairing, ensure the device is in discovery mode and remove previously paired devices. For minor electrical glitches, checking the battery connections and fuses is recommended. Remember to consult a qualified technician for complex issues or those beyond your comfort level, prioritizing safety and proper vehicle maintenance.
Understanding your 2021 Honda Accord’s dashboard symbols is vital for safe operation. A solid illumination of the check engine light indicates a potential engine issue requiring diagnosis. The low oil pressure light signals insufficient lubrication – stop driving immediately. A flashing airbag light suggests a system malfunction, potentially compromising safety.
The brake warning light can indicate low brake fluid or a parking brake engagement. A battery light signifies charging system problems. Ignoring these warnings can lead to more significant damage. Refer to the owner’s manual for a comprehensive list and recommended actions, ensuring prompt attention to maintain vehicle health and driver safety.
The 2021 Honda Accord manual models boast a 1.5L or 2.0L engine, offering varied horsepower and torque, alongside specific dimensions and cargo capacities.
For the 2021 Honda Accord with a manual transmission, two engine options are available. The standard engine is a 1.5-liter turbocharged inline-4, producing 192 horsepower at 5,500 rpm and 192 lb-ft of torque at 1,600-5,000 rpm. This engine utilizes direct injection and a single scroll turbocharger for enhanced efficiency and responsiveness.
Alternatively, a more powerful 2.0-liter turbocharged inline-4 is offered, delivering 252 horsepower at 6,500 rpm and 273 lb-ft of torque between 3,000-4,000 rpm. This engine also features direct injection and a dual-scroll turbocharger. Both engines are paired with a 6-speed manual transmission, providing drivers with a connected and engaging driving experience. Fuel requirements for both engines are unleaded premium gasoline.
The 2021 Honda Accord boasts generous dimensions for passenger comfort and cargo space. Its overall length measures 196;1 inches, with a width of 73.4 inches and a height of 57.1 inches. The wheelbase is 111.0 inches, contributing to a stable ride.
Interior passenger volume reaches 102.7 cubic feet, offering ample legroom and headroom. Trunk capacity is a substantial 16.7 cubic feet, easily accommodating luggage and groceries. Fuel tank capacity is 12.5 gallons. Curb weight varies depending on the trim and transmission, ranging from approximately 3,183 to 3,337 pounds. These dimensions provide a practical and spacious vehicle for daily use and longer journeys.

Honda provides comprehensive warranty coverage for the 2021 Accord, including a basic warranty and powertrain coverage, plus roadside assistance for peace of mind.
The 2021 Honda Accord comes with a robust warranty package designed to protect your investment. The basic warranty typically covers 3 years/36,000 miles, safeguarding against defects in materials and workmanship. Powertrain coverage extends to 5 years/60,000 miles, protecting the engine, transmission, and other vital components.
Additionally, Honda offers corrosion protection for 5 years/unlimited miles. These warranties are transferable to subsequent owners, potentially increasing the vehicle’s resale value; It’s important to review the full warranty booklet for specific terms, conditions, and exclusions, ensuring you understand your rights and responsibilities as an owner. Maintaining proper vehicle maintenance is crucial for warranty validity.
Honda provides a comprehensive Roadside Assistance Program for 2021 Accord owners, offering peace of mind on the road. This program typically includes services like jump-starts, tire changes, lockout assistance, fuel delivery, and towing to the nearest Honda dealership. Coverage duration varies, often extending for 3 years/36,000 miles from the original purchase date.
To access assistance, owners can simply call the dedicated Honda Roadside Assistance hotline. It’s crucial to have your vehicle identification number (VIN) readily available. The program aims to minimize disruptions caused by unexpected breakdowns, ensuring a swift and safe return to driving. Review the program details in your owner’s manual for complete terms and conditions.