All cars with smart key have this button. It enables/disables the Smart Key/Smart Start system. (Cars without smart key do not have the button) It is basically near the driver's left knee on the lowest part of the dash. When the button is pressed out, smart key is enabled. When the button is pressed in, smart key is disabled.

Shop Now:

Get your vehicle checked by an authorized dealer to confirm if it is equipped with a remote start system. If the vehicle does not have the remote start system, it may have the remote start ready feature. This feature allows your dealer to add the manufacturer’s remote vehicle start system. Video Demonstration (key fob)

The automaker told Roadshow in a statement that remote starting won't be available on key fobs for new vehicles. You'll have to use the brand's mobile app, in other words. With that said, you

Press the LOCK button on the key fob of your Enclave. Then press and hold the REMOTE START button for at least four seconds on the key fob. The turn signal lights flash and the engine starts. Once started remotely, the engine will run for 15 minutes and then shut down automatically. The vehicle remains secured when you have remotely started the
To activate the remote start using the Remote Start key: Press and hold the “Engine Start Stop” button until the lock icon flashes, and release. Within 3 seconds, press and hold the button again for more than 2 seconds. The key icon will flash, and the vehicle will start. To remotely shut off the engine, press and hold the button for two
To remote start your Lexus RX 350, double-click the LOCK button on your key fob, then press and hold the LOCK button on your key fob for three seconds. You can also remote start using the Lexus app. QUICK LOOK uSSfMo.
  • usj76o1dhd.pages.dev/263
  • usj76o1dhd.pages.dev/42
  • usj76o1dhd.pages.dev/289
  • usj76o1dhd.pages.dev/108
  • usj76o1dhd.pages.dev/113
  • usj76o1dhd.pages.dev/255
  • usj76o1dhd.pages.dev/319
  • usj76o1dhd.pages.dev/306
  • usj76o1dhd.pages.dev/3
  • does my key fob have remote start