Rental car infotainment systems can retain drivers’ personal data
Connecting a phone to a rental car can leave personal information on its infotainment system for the next driver, including contacts, account details and navigation history. This matters because location data may reveal where someone stayed or works, while carmakers or rental firms may also receive data under their privacy policies.
Bluetooth pairing may prompt drivers to share contacts, which can be declined while still using music and navigation. A USB connection with Apple CarPlay or Android Auto is encrypted; before returning the car, drivers should unpair their phone and delete it, along with saved destinations and navigation history, from the car’s system. Some vehicles also offer a factory reset to erase stored data.
- Rental cars may retain contacts and location history.
- Decline contact sharing when pairing by Bluetooth.
- Unpair your phone and clear the car’s saved data before returning it.
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Rental car infotainment systems are the touchscreen interfaces in vehicles that control entertainment, navigation and connectivity features. Most modern drivers connect their mobile phones to these systems to stream music or access navigation applications during their journey.
When you pair or connect your phone to a rental car's system, the vehicle may automatically store personal information from your device. This creates a privacy concern because rental cars serve multiple drivers in succession, meaning each person's stored data could potentially remain accessible to the next customer or to the rental company.
Different connection methods handle this data differently. Connecting via Bluetooth may prompt your phone to share your contacts list, whilst cable connections using services like Apple CarPlay encrypt data in transit. Nonetheless, personal information such as navigation history and saved destinations typically persists in the car's system.
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Originally published by Engadget as “Why you shouldn’t sync your phone to a rental car”.