Privacy Policy

Last updated: 14.08.2026

1. Information Collection

OBD2HQ is a public diagnostic database. We do not require users to create an account or provide personal information to search for OBD2 codes. We may collect anonymous analytics data (such as pages visited or search queries) to improve our database accuracy.

2. Cookies and Advertising

We use third-party advertising partners (such as Google AdSense) to serve ads when you visit our website. These companies may use cookies to serve ads based on your prior visits to our website or other websites.

3. Data Security

While we do not store sensitive personal information, we employ industry-standard security measures to protect the integrity of our diagnostic database and ensure a safe browsing experience.

How privacy works across diagnostic tools

OBD2HQ is designed so most diagnostic tasks can be completed without an account. A driver can read an OBD2 code, compare symptoms, open a warning-light guide or use a calculator without submitting a VIN, plate number, phone number or address.

When anonymous analytics or diagnostic search logs are used, the purpose is editorial quality: finding broken journeys, improving unclear pages, detecting missing symptom language and understanding which vehicle guides need better first-check information.

  • Do not include VIN, license plate or personal contact details in public diagnostic messages.
  • Search data is reviewed in aggregate so weak guides can be improved.
  • Advertising and analytics partners may use cookies according to their own privacy controls.