IdeaWell

Project ideas from Hacker News discussions.

Can I disable all data collection from my vehicle?

Original Article

Hacker News Discussion

📝 Discussion Summary (Click to expand)

4 Prevalent Themes from the Discussion

Theme Supporting Quote
1. Explicit privacy toggle is now offered – Rivian (Canada) lets owners cut all data collection without dealer help. “Kudos to Rivian for making this a supported user privacy feature.” — dlenski
2. Users resent being forced to trade privacy for safety – many cite the “shouldn't have to” sentiment. “Shouldn't have to trade privacy for safety.” — cj
3. Distrust of built‑in voice assistants and “connected” features – seen as unreliable even in 2026. “This is the company whose flagship voice assistant, in 2026, can’t tell the intended recipient in a sentence like ‘Text Bob Mary signed the deal.’” — xp84
4. Desire for simple, non‑connected vehicles – some users would rather drive older ICE cars or avoid any telematics. “I wanted a car, not a computer on wheels.” — Testa

All quotations are presented exactly as written in the discussion, with HTML entities escaped.

🚀 Project Ideas

Telemetry Kill Switch Kit

Summary- Plug‑in hardware module that instantly cuts power to a vehicle’s cellular modem while leaving all other systems (audio, navigation, safety) intact.

  • Gives drivers a true “privacy‑first” toggle without dealer visits.

Details

Key Value
Target Audience Car owners who want to opt‑out of built‑in telematics but still use basic vehicle functions.
Core Feature Physical relay‑controlled disconnect that can be activated via a cabin button or mobile app.
Tech Stack 5 V automotive relay, ESP32‑based controller, custom firmware, optional OTA updates.
Difficulty Medium
Monetization Revenue-ready: $59 one‑time kit

Notes

  • HN users repeatedly ask for a simple way to “disable connectivity” – this product turns that request into a ready‑to‑install solution.
  • Potential for aftermarket kits, community firmware, and integration with existing vehicle OBD‑II adapters.

CarPrivacy Dashboard

Summary- Web and mobile dashboard that scans OBD‑II logs, identifies telemetry endpoints, and creates firewall rules to block data collection on demand.

  • Centralised view of all vehicle data flows, letting users toggle privacy settings instantly.

Details

Key Value
Target Audience Tech‑savvy vehicle owners, fleet managers, privacy‑conscious drivers.
Core Feature Real‑time telemetry map with one‑click “block” for cellular, Wi‑Fi, and Bluetooth services.
Tech Stack Node.js backend, React frontend, SQLite DB, Node‑RED for rule engine, Cloudflare Workers.
Difficulty Medium
Monetization Revenue-ready: $7/month per vehicle

Notes

  • Quotes from HN commenters like “Why would you need an appointment to turn it off?” align perfectly with the service’s value.
  • Could expand into a marketplace for third‑party privacy plugins and audits.

OpenCar Antenna Disconnector#Summary

  • Open‑source, 3‑D‑printable enclosure with a pull‑tab that physically removes the vehicle’s cellular antenna connector, combined with a configurable “privacy mode” button.
  • Allows users to disconnect telematics without dealer involvement.

Details| Key | Value |

|-----|-------| | Target Audience | DIY enthusiasts, vehicle modders, privacy advocates. | | Core Feature | Modular disconnect kit that snaps onto most OEM antenna ports; optional LED indicator and optional Wi‑Fi status API. | | Tech Stack | PLA/ABS 3‑D printing, 12 V automotive switch, simple firmware on ATtiny85, open‑source firmware on GitHub. | | Difficulty | Low | | Monetization | Hobby |

Notes

  • Directly addresses the “physical button” demand voiced in the discussion (“They could store data and then dump it later…”).
  • Community can share designs for different makes, creating a decentralized solution.

Unified Car Privacy Service

Summary

  • Cloud‑based subscription that monitors a vehicle’s firmware updates, automatically restores privacy toggles when manufacturers reset them, and provides alerts for new data‑collection features.
  • Guarantees persistent opt‑out across OTA updates.

Details

Key Value
Target Audience Vehicle owners, fleet operators, privacy‑focused consumers.
Core Feature Automated privacy‑state persistence and audit trail accessible via web portal or API.
Tech Stack Python/Django backend, PostgreSQL, background workers, push notifications, integration with vehicle telematics APIs (Rivian, GM, Ford).
Difficulty High
Monetization Revenue-ready: $12/month per vehicle

Notes

  • Mirrors the “toggle in settings” frustration by offering an always‑on privacy guardian. - Could partner with insurance telematics programs for data‑exchange incentives, creating a new revenue stream while protecting users.

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