The DCM became standard on the RAV4 with the 2020 model year. A 2014-2018 gas RAV4 without the nav-bundled Safety Connect option has no embedded modem; option bundles vary, so confirm with the SOS-button check and a VIN lookup rather than assuming. Cars that were optioned have been dead since the 3G retirement, same fallback logic as the Prius.
This rule covers gas models only. The RAV4 EV ran its own connected system and is excluded. Expect 26-29 mpg, available AWD, enormous parts availability, and the same longevity reputation as the rest of the Toyota lineup. The practical middle ground between a Corolla and a 4Runner.