Attaching equipment to a vehicle diagnostic port is a standard third-party practice. In the US, the Moss Magnuson Warranty Act of 1975 specifically prohibits manufacturers from voiding the vehicle warranty due to aftermarket additions. In addition, Samsara is read-only and does not attempt to modify a vehicle’s ECU and is specifically designed not interfere with a vehicle’s operation.
Samsara is a member of Electrical Training Institute (ETI), an organization that includes both diagnostics vendors and vehicle manufacturers, providing Samsara with diagnostics information directly from the manufacturers. Samsara is thoroughly tested for interoperability with a wide variety of vehicles.