Step-by-step guide to physically removing the DCM modem and GPS antenna from a 2024 RAV4 Hybrid to stop Toyota telemetry at the hardware level.
Key Takeaways
Removing the DCM (part 86741-06130) kills all Toyota cloud services, OTA updates, and SOS but leaves core driving functions intact.
Bluetooth tethering restores telemetry even without the modem; USB-only CarPlay is the workaround.
A $90 DCM Bypass Kit restores the in-car microphone by mimicking the modem harness pinout.
Disconnecting the GPS antenna (single black wire on head unit 86140-0R710) is required to fix a CarPlay bug that jumps position to Nevada.
Magnuson-Moss Warranty Act limits void-of-warranty claims to telematics-related repairs; unrelated failures like engine issues remain covered.
Hacker News Comment Review
The Bluetooth tethering claim is contested: commenters note iOS Personal Hotspot must be explicitly enabled and CarPlay switches from Bluetooth to a local WiFi network, making passive tethering unlikely without user action.
Several owners of other makes (VW, Honda Civic, Ford Maverick) confirmed parallel issues: a VW reportedly knew exact current mileage via Carfax despite user opt-outs, and Honda Android Auto exhibits the same bad GPS heading bug Toyota does.
Software-only paths exist but are underdocumented: Toyota Techstream coding can disable telematics without hardware removal; Kia has a hidden “Massachusetts mode” flag; Ford Maverick has a single fuse; these options are inconsistently available across model years.
Notable Comments
@everdrive: 2024 Ford Maverick telematics can be cut via a single fuse with no error codes thrown, no disassembly needed.
@sigio: In UK/EU, disabling connected safety features may cause mandatory MOT/APK inspection failure, making the car legally undriveable.
