Owner’s Manual - Event Data Recorders - How EDR Works and Data Access Rules

Oct 23, 2026

Owner’s manual section explains how the vehicle’s Event Data Recorder (EDR) captures specific vehicle and safety system data during certain crash or near crash events, typically for 30 seconds or less. It lists recorded items such as system operation status, seat belt buckling, driver accelerator/brake pedal input, and vehicle speed, and clarifies that EDR does not record under normal driving. It also describes requirements for special equipment to read EDR data, ownership and legal access limits, and related service diagnostic recording confidentiality.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages659

Reading Time27 h 41 min

AccessFree to download

Event Data Recorders (EDR)

Purpose and recorded data

When data is recorded and what is not recorded

Access, equipment, and ownership limits

Service Diagnostic Recorders

Purpose and confidentiality

Uploaded diagnostic information

California Perchlorate Contamination Prevention Act

NOTICE symbol information

Software End User License Agreement

Arbitration clause and opt-out

Privacy Notice

Location and usage information sharing

A Few Words About Safety

Safety labels, messages, and headings

Manual safety guidance

Owner’s Manual 2021 ACCORD Event Data Recorders This vehicle is equipped with an event data recorder (EDR) . The main purpose of an EDR is to record, in certain crash or near crash-like situations, such as an air bag deployment or hitting a road obstacle, data that will assist in understanding how a vehicle’s systems performed. The EDR is designed to record data related to vehicle dynamics and safety systems for a short period of time, typically 30 seconds or less. The EDR in this vehicle is designed to record such data as: • How various systems in your vehicle were operating; • Whether or not the driver and passenger safety belts were buckled/fastened; • How far (if at all) the driver was depressing the accelerator and/or brake pedal; and, • How fast the vehicle was traveling. These data can help provide a better understanding of the circumstances in which crashes and injuries occur. NOTE: EDR data are recorded by your vehicle only if a non-trivial crash situation occurs; no data are recorded by the EDR under normal driving conditions and no personal data (e.g., name, gender, age, and crash location) are recorded. However, other parties, such as law enforcement, could combine the EDR data with the type of personally identifying data routinely acquired during a crash investigation. To read data recorded by an EDR, special equipment is required, and access to the vehicle or the EDR is needed. In addition to the vehicle manufacturer, other parties, such as law enforcement, that have the special equipment, can read the information if they have access to the vehicle or the EDR. The data belongs to the vehicle owner and may not be accessed by anyone else except as legally required or with the permission of the vehicle owner. Service Diagnostic Recorders This vehicle is equipped with service-related devices that record information about powertrain performance. The data can be used to verify emissions law requirements and/or help technicians diagnose and solve service problems. It may also be combined with data from other sources for research purposes, but it remains confidential. Some diagnostic and maintenance information is uploaded to Honda upon vehicle start up. California Perchlorate Contamination Prevention Act The airbags, seat belt tensioners, and CR type batteries in this vehicle may contain perchlorate materials-special handling may [apply. See](apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate/)[ www.dtsc.ca.gov/hazardouswaste/perchlorate/](apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate/) As you read this manual, you will find information that is preceded by a NOTICE symbol. This information is intended to help you avoid damage to your vehicle, other property, or the environment. Software End User License Agreement Your vehicle comes equipped with software, which is governed by the End User License Agreement in Owner’s Manual, and which contains a binding arbitration clause. Please refer to the End User License Agreement for the terms and conditions governing your use of the installed software, as well as the applications, services, functions, and content provided through the software. Your use of the installed software will serve as your consent to the terms and conditions of the End User License Agreement. You may opt out within 30 days of your initial use of the Software by sending a signed, written notice to HONDA at American Honda Motor Co., Inc. Honda Automobile Customer Services Mail Stop 100-5E-8A, 1919 Torrance Blvd. Torrance, CA 90501-2746. Privacy Notice This vehicle may share location and usage information. To manage this setting, [visit](visit www.hondalink.com/vehicle-data-choices)[ www.hondalink.com/vehicle-data-choices](visit www.hondalink.com/vehicle-data-choices). To learn more about how we collect and use Personal Information, please read our Privacy Policy, accessible at [www.honda.com](www.honda.com). A Few Words About Safety Your safety, an

FAQs

What is the purpose of an Event Data Recorder (EDR) in this vehicle?

The EDR records data during certain crash or near crash-like situations to help understand how the vehicle’s systems performed.

What types of data does the EDR record, and when does it stop recording?

It records how systems operated, whether seat belts were buckled, how far the driver pressed accelerator/brake pedals, and vehicle speed. It is designed to record for a short period, typically 30 seconds or less, and only when a non-trivial crash situation occurs.

Who can access EDR data and what is required to read it?

Special equipment is required, and access to the vehicle or the EDR is needed. The data belongs to the vehicle owner and may be accessed by anyone else only as legally required or with the vehicle owner’s permission.

Oct 23, 2026

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