What are the most common Honda Accord problems?
According to Au7o's analysis of 9,211+ owner reports, the 2021-2021 Honda Accord has 6 documented issues. The most frequently reported are: Denso Fuel Pump Impeller Failure - Safety Recall NHTSA 20V-374, ZF 9-Speed Transmission Rough Shifting, Shudder, and Hesitation (2.0T), 1.5L Turbo Engine Oil Dilution. Of these, 5 are rated critical and should be addressed promptly.
Is the Honda Accord reliable?
The 2021-2021 Honda Accord has 6 known issues documented across 9,211+ owner reports. 5 issues are rated critical: Denso Fuel Pump Impeller Failure - Safety Recall NHTSA 20V-374 and ZF 9-Speed Transmission Rough Shifting, Shudder, and Hesitation (2.0T) and 1.5L Turbo Engine Oil Dilution and Automatic Emergency Braking False Activation (CMBS) and Hybrid Inverter/Power Control Unit (PCU) Cooling System Failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Honda Accord problems?
Repair costs for known Honda Accord issues range from $0 to $8,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Denso Fuel Pump Impeller Failure - Safety Recall NHTSA 20V-374, typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2018-2021 Honda Accord Denso Fuel Pump Impeller Failure - Safety Recall NHTSA 20V-374?
The 10th generation Accord (2018-2021) is affected by the largest Honda fuel pump recall in history, covering over 5.7 million vehicles. Denso fuel pump impellers were manufactured with improperly molded low-density material. The impellers deform over time under fuel exposure, ex… Repairs typically run $0-$0. Severity: high.
What is the 2018-2022 Honda Accord ZF 9-Speed Transmission Rough Shifting, Shudder, and Hesitation (2.0T)?
The 10th generation Accord 2.0T uses the ZF 9HP48 9-speed automatic transmission - the same unit that caused widespread complaints in the Honda Pilot (2016-2019) and Acura TLX/MDX. Software-controlled dog clutches are incompatible with Honda's original calibration, causing violen… Repairs typically run $0-$7,000. Severity: high.
What is the 2018-2022 Honda Accord 1.5L Turbo Engine Oil Dilution?
The 1.5-liter turbo direct injection engine suffers from an oil dilution defect where unburned fuel enters the engine oil. This occurs when fuel is sprayed into the cylinder, drips down the cylinder walls past the piston rings, and accumulates in the oil pan. The problem is more… Repairs typically run $100-$8,000. Severity: high.
What is the 2018-2022 Honda Accord Automatic Emergency Braking False Activation (CMBS)?
The Collision Mitigation Braking System (CMBS), part of Honda Sensing, may activate randomly without warning even when no obstacle is present. NHTSA investigated over 278 complaints with 107 specifically for Accord models. The investigation covers nearly 3 million vehicles and ha… Repairs typically run $0-$1,500. Severity: high.
What is the 2018-2025 Honda Accord Hybrid Inverter/Power Control Unit (PCU) Cooling System Failure?
The 10th and 11th generation Accord Hybrid uses a dedicated liquid-cooled Power Control Unit (PCU/inverter) that manages power flow between the gas engine, electric motors, and high-voltage battery. The PCU cooling system uses a separate small coolant reservoir (distinct from eng… Repairs typically run $100-$6,000. Severity: high.
What is the 2018-2022 Honda Accord A/C Condenser Leak and Refrigerant Loss?
The 10th generation Accord (2018-2022) AC condenser develops pinhole leaks and hairline cracks at the aluminum fin-to-tube brazed joints, causing slow refrigerant loss. The condenser is located at the front of the vehicle behind the grille, where road debris (pebbles, sand, grave… Repairs typically run $600-$1,200. Severity: medium.
