Ripping Out the Modem and GPS From a 2024 RAV4 to Kill Telemetry at the Source

A RAV4 Hybrid owner documents physically removing the Data Communication Module (DCM) and built-in GPS from a 2024 model year car to stop Toyota’s constant telemetry stream at the hardware level rather than trusting opt-outs. The motivation is the now-familiar litany of automotive privacy failures: Subaru’s 2025 remote-unlock and location-tracking flaws, Tesla employees passing around customer camera footage, insurers buying driving data from brokers like LexisNexis, and Mozilla’s finding that automakers harvest everything from facial expressions to sexual activity. The teardown walks through trim removal, unbolting the DCM behind the head unit, and installing a $90 bypass kit that re-enables the in-car microphone, which is wired through the modem.

The tradeoffs are concrete: no over-the-air updates, no automatic crash notification or SOS, and a partial warranty exposure limited by Magnuson-Moss to the affected systems. The GPS unit has to come out too, because CarPlay accepts a location signal from the car and a disconnected modem makes the head unit feed phantom coordinates to the phone. The most important caveat is that pulling the modem alone does not stop the data flow — if the phone pairs over Bluetooth, the car tethers through it and ships telemetry to Toyota anyway. Wired USB CarPlay is the only reliable workaround, or a Bluetooth-to-USB adapter that masquerades as a wired device.

The piece is notable less as a how-to than as evidence of where automotive privacy has landed: meaningful consent now requires unbolting parts of the car, the wiring schematics needed to do it cleanly sit behind Toyota’s paywalled TIS portal, and a small cottage industry of bypass-kit makers exists because the manufacturers will not ship a working off switch.