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Total NHTSA Complaints
270
Owner filings recorded
#1 Reported Problem
Driver Assistance & Safety Tech
87 reports (32.2%)
Crash Incident Reports
16
Filings citing a crash
Fire & Injury Reports
6
1 fire • 5 injury filings
Defect Investigation Analysis

Executive Problem Findings

AutoUtility currently tracks 270 official NHTSA owner defect complaints for the 2021 Honda Accord. Driver Assistance & Safety Tech issues are the most frequently reported category, appearing in 87 complaints (32.2% of submitted records). Among these NHTSA complaint records, 16 filings cite a crash, 1 cites a fire, 5 report one or more injuries.

Methodology Notice: Consumer complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Filings are not normalized for sales volume or vehicle mileage and do not constitute an audited component failure rate.
Incident & Severity Profile
  • • Total Owner Reports: 270 complaints submitted under federal penalty.
  • • Primary Subsystem: Driver Assistance & Safety Tech accounts for 32.2% of submissions (87 reports).
  • • Secondary Systems: Electrical System (64), Engine & Cooling (36).
  • • Crash Incidents: 16 filings cite an impact or collision.
  • • Thermal Incidents: 1 filings cite smoke or fire.
  • • Reported Casualties: 5 injury filings • 0 fatality filings.
Category Distribution

Reported Defect Categories for 2021 Honda Accord

Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records

Driver Assistance & Safety Tech
87
32.2%
Electrical System
64
23.7%
Engine & Cooling
36
13.3%
Brakes & Traction Control
32
11.9%
Air Bags & Restraints
25
9.3%
#1 32.2% SHARE

Driver Assistance & Safety Tech

87 owner complaints submitted to NHTSA ODI for this subsystem.

⚠️ 7 Crash 🩹 4 Injury
#2 23.7% SHARE

Electrical System

64 owner complaints submitted to NHTSA ODI for this subsystem.

⚠️ 3 Crash 🔥 1 Fire 🩹 2 Injury
#3 13.3% SHARE

Engine & Cooling

36 owner complaints submitted to NHTSA ODI for this subsystem.

⚠️ 2 Crash 🩹 2 Injury
#4 11.9% SHARE

Brakes & Traction Control

32 owner complaints submitted to NHTSA ODI for this subsystem.

⚠️ 4 Crash
Deterministic Text Analysis

Recurring Symptoms Identified in Owner Reports

Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis

Powertrain & Transmission 4.8%

Loss of Motive Power While Driving

13 complaint narratives describe this symptom.

NHTSA Narrative Match
Federal Oversight

Official NHTSA Defect Investigations (2)

Formal engineering analyses and preliminary evaluations opened by the NHTSA Office of Defects Investigation

ODI Action #EA24002 OPEN Engineering Analysis (EA)
Opened: 2024-04-15 • Active
Subject / Subsystem
Inadvertent Automatic Emergency Braking
Affected Component
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
Recall Linkage
No direct recall linkage
On February 21, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE22003) to assess reports of inadvertent activation of the Collision Mitigation Braking System (CMBS), an automatic emergency braking (AEB) system, in model year 2017-2019 Honda CR-V and 2018-2019 Honda Accord vehicles.  The reports allege that activation of the AEB system occurs while driving with no apparent obstruction in the vehicle's forward path, resulting in sudden vehicle deceleration. Honda indicated that they were aware of a total of X,XXX reports that may relate to the alleged defect. Honda provided analysis of the alleged defect and alleges that some customers possibly had an inadequate understanding of the CMBS and its limitations.  However, many consumer complaints allege that Honda dealerships were unable to reproduce the condition or state that they were informed that this is considered normal CMBS operation. To date, ODI has received a total of 1,294 consumer complaints of inadvertent activation of CMBS in 2017-2022 Honda CR-V and 2018-2022 Honda Accord vehicles. A total of 31 complaints alleged a crash and 50 alleged an injury.  The Total column in the Failure Report Summary removes duplicate reports and shows the total number of reports with unique VINs from all Manufacturer, ODI, and EWR data sources.  In some cases, there were multiple reports associated with a particular vehicle in which recurring failures were alleged.  In total, there were X,XXX reports, 93 injury incidents and 47 crashes involving vehicles with unique VINs that may relate to the alleged defect. PE22-003 has been upgraded to an Engineering Analysis to further assess the scope, frequency, and potential safety related consequences of the inadvertent AEB activations. The scope has been expanded to include assessment of model year 2020-2022 Honda CR-V and Accord vehicles. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.
ODI Action #DP22005 CLOSED Defect Petition (DP)
Opened: 2023-01-27 • Closed: 2023-08-07
Subject / Subsystem
Pedestrian alert sounds
Affected Component
ELECTRICAL SYSTEM:PROPULSION SYSTEM
Recall Linkage
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.
Consumer Filings

Recent NHTSA Owner Reports for 2021 Honda Accord

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Engine & Cooling ODI #11758597
Filed: 08/21/2026
Defect Report

"The contact owns a 2021 Honda Accord. The contact stated that while driving approximately 30 MPH, the message "Emission System Problem" was displayed. The vehicle was taken to the dealer, where it was diagnosed and determined that the turbocharger had failed and needed to be replaced. The contact..."

Powertrain & Transmission ODI #11757836
Filed: 08/18/2026
Defect Report

"My car currently has displayed all lights on panel. Went to auto zone to have codes read, shows powertrain-description is code PO299 suggests turbocharger assembly. Safety is put at risk because all of the safety features are now disabled."

Other / Miscellaneous ODI #11757660
Filed: 08/18/2026
Defect Report

"Infotainment system recieving phantom / ghost touches. Screen selects menu items on its own, plays, pauses music, causes major distraction and disruption. Screen flashes when changing menus and can pull attention from the road. Safety issue!"

Engine & Cooling ODI #11757216
Filed: 08/15/2026
Defect Report

"Emission system"

Engine & Cooling ODI #11757180
Filed: 08/15/2026
Defect Report

"40,000 miles and 5 years after original in service date - failure of 2021 ACCORD 1.5T headgasket system between cylinder s #1-2. Required full head disassembly, removal, rebuild of head, and replacement of head gasket and associated components. $6000 quote from Honda Corporate as I was 55 DAYS..."

Multi-Year Trend

Complaint History for Honda Accord

Reported defect complaint volume across sibling model years (2015–2026)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2015 Honda Accord 599 37 6 View 2015 Problems →
2016 Honda Accord 597 32 4 View 2016 Problems →
2017 Honda Accord 578 41 3 View 2017 Problems →
2018 Honda Accord 1972 38 6 View 2018 Problems →
2019 Honda Accord 764 28 6 View 2019 Problems →
2020 Honda Accord 391 17 6 View 2020 Problems →
2021 Honda Accord Current Page 270 16 4 Current
2022 Honda Accord 289 11 4 View 2022 Problems →
2023 Honda Accord 224 12 8 View 2023 Problems →
2024 Honda Accord 213 12 5 View 2024 Problems →
2025 Honda Accord 98 6 2 View 2025 Problems →
2026 Honda Accord 0 0 1 View 2026 Problems →
Exhaustive System Audit

Detailed NHTSA Component Breakdown for 2021 Honda Accord

Complete distribution of consumer defect reports across all 73 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Injury Entries Fatality Entries
Forward Collision Avoidance NHTSA category: FORWARD COLLISION AVOIDANCE 40 3 0 2 0
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 31 0 0 0 0
Electrical System NHTSA category: ELECTRICAL SYSTEM 24 1 1 0 0
Engine NHTSA category: ENGINE 19 0 0 0 0
Air Bags NHTSA category: AIR BAGS 15 1 0 0 0
ELECTRICAL SYSTEM,UNKNOWN OR OTHER 13 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES 11 1 0 0 0
Lane Departure Warning NHTSA category: LANE DEPARTURE 7 0 0 0 0
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 6 1 0 0 0
UNKNOWN OR OTHER,ENGINE 5 0 0 0 0
ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE 4 0 0 0 0
ENGINE,FUEL/PROPULSION SYSTEM 4 1 0 0 0
Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM 4 0 0 0 0
Powertrain NHTSA category: POWER TRAIN 4 0 0 0 0
Structure & Body NHTSA category: STRUCTURE 4 0 0 0 0
LANE DEPARTURE,FORWARD COLLISION AVOIDANCE 3 0 0 0 0
Seat Belts NHTSA category: SEAT BELTS 3 0 0 0 0
UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE 3 1 0 2 0
VEHICLE SPEED CONTROL,ENGINE 3 0 0 0 0
Visibility & Wipers NHTSA category: VISIBILITY/WIPER 3 0 0 0 0
ELECTRICAL SYSTEM,ENGINE 2 0 0 0 0
ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM 2 0 0 0 0
ELECTRICAL SYSTEM,UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE 2 0 0 0 0
Fuel System NHTSA category: FUEL SYSTEM, GASOLINE 2 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM,ENGINE 2 1 0 2 0
POWER TRAIN,ENGINE 2 0 0 0 0
Seats & Restraints NHTSA category: SEATS 2 0 0 0 0
SERVICE BRAKES,LANE DEPARTURE,FORWARD COLLISION AVOIDANCE 2 0 0 0 0
Steering NHTSA category: STEERING 2 1 0 2 0
UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM 2 0 0 0 0
VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE 2 0 0 0 0
AIR BAGS,SEAT BELTS,SEATS 1 0 0 0 0
AIR BAGS,SEATS 1 0 0 0 0
AIR BAGS,UNKNOWN OR OTHER 1 0 0 0 0
Back Over Prevention / Camera NHTSA category: BACK OVER PREVENTION 1 0 0 0 0
ELECTRICAL SYSTEM,AIR BAGS 1 0 0 0 0
ELECTRICAL SYSTEM,ENGINE,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM 1 0 0 0 0
ELECTRICAL SYSTEM,LANE DEPARTURE 1 0 0 0 0
ELECTRICAL SYSTEM,LANE DEPARTURE,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
ELECTRICAL SYSTEM,SERVICE BRAKES 1 0 0 0 0
ELECTRICAL SYSTEM,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
ELECTRICAL SYSTEM,SERVICE BRAKES,VISIBILITY/WIPER 1 0 0 0 0
ELECTRICAL SYSTEM,UNKNOWN OR OTHER,SERVICE BRAKES 1 0 0 0 0
ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,SERVICE BRAKES 1 0 0 0 0
ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,UNKNOWN OR OTHER 1 0 0 0 0
Engine & Cooling NHTSA category: ENGINE AND ENGINE COOLING 1 0 0 0 0
ENGINE AND ENGINE COOLING,FUEL SYSTEM, GASOLINE 1 0 0 0 0
Equipment & Accessories NHTSA category: EQUIPMENT 1 0 0 0 0
FUEL SYSTEM, DIESEL 1 0 0 0 0
FUEL/PROPULSION SYSTEM,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM,SERVICE BRAKES 1 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM,UNKNOWN OR OTHER 1 0 0 0 0
POWER TRAIN,EXTERIOR LIGHTING,SEAT BELTS 1 0 0 0 0
POWER TRAIN,SERVICE BRAKES 1 0 0 0 0
SEAT BELTS,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
SEAT BELTS,SEATS 1 0 0 0 0
SERVICE BRAKES, AIR 1 0 0 0 0
SERVICE BRAKES, AIR,FORWARD COLLISION AVOIDANCE 1 1 0 0 0
STEERING,ELECTRICAL SYSTEM 1 0 0 0 0
STEERING,ELECTRICAL SYSTEM,ENGINE 1 1 0 0 0
STEERING,LANE DEPARTURE 1 0 0 0 0
STEERING,SERVICE BRAKES 1 1 0 0 0
STEERING,SUSPENSION 1 0 0 0 0
STEERING,SUSPENSION,SERVICE BRAKES 1 0 0 0 0
Suspension NHTSA category: SUSPENSION 1 1 0 0 0
Tires NHTSA category: TIRES 1 0 0 0 0
TRACTION CONTROL SYSTEM,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
Vehicle Speed Control NHTSA category: VEHICLE SPEED CONTROL 1 0 0 0 0
VEHICLE SPEED CONTROL,UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE 1 1 0 0 0
VEHICLE SPEED CONTROL,UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM 1 0 0 0 0
Visibility / Glass NHTSA category: VISIBILITY 1 0 0 0 0
VISIBILITY,SERVICE BRAKES 1 0 0 0 0
Search Intelligence

Quick Answers: Common Problems & Reliability Questions for the 2021 Honda Accord

Direct, deterministic answers synthesized from verified United States government databases for the 2021 Honda Accord

What are the most common reported problems with the 2021 Honda Accord?

In official NHTSA consumer records, the most frequently cited issue area for the 2021 Honda Accord is Driver Assistance & Safety Tech, appearing in 87 records (32.2% of submitted filings).

Secondary reported categories include Electrical System (64) and Engine & Cooling (36).

Source: NHTSA Office of Defects Investigation (ODI)

Is the 2021 Honda Accord a reliable vehicle?

AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 270 consumer defect complaints and 4 safety recall campaigns for the 2021 Honda Accord.

Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.

Source: NHTSA ODI & Safety Recalls Databases

Are there crash, fire, or injury reports associated with the 2021 Honda Accord?

Among consumer complaint records on file with NHTSA for the 2021 Honda Accord, 16 filings cite a crash, 1 cite smoke or fire, and 5 report one or more injuries.

Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.

Source: NHTSA Office of Defects Investigation Consumer Logs

Has NHTSA formally investigated defects on the 2021 Honda Accord?

NHTSA ODI records list 2 formal defect investigations involving the 2021 Honda Accord (1 currently open).

Federal defect investigations are formal engineering evaluations opened when safety defect trends emerge, and do not by themselves establish a confirmed defect or mandatory recall.

Source: NHTSA Office of Defects Investigation Registry
Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.