Frequent engine shutdowns and restarts can be detrimental. After installation of the auto start stop eliminator, the car will automatically activate the auto-off button.The default setting of the car's automatic start-stop function is disabled to safeguard the engine. This auto start/stop off delete/disable/eliminator/canceller device effectively addresses issues such as automatic traffic light shut-offs, energy conservation, emission reduction, fuel cost reduction, and improved comfort. Easy to Install: Remove the fuse cover and push out the middle side clamp. Remove the wire plug from the button, install the automatic start stop device, and reconnect the wire plug to complete. Please wait for 15 seconds for the first installation, do not press any keys. LED Night Light Design: Upgraded button type, equipped with LED light, plug-to-plug, simple and nondestructive installation.The button pops up, the function is on; The button pops down, and the function is off. Compatible with Vehicle Models: The upgraded auto start stop eliminator is compatible with for Subaru Forester 2019-2022 (Note: Hybrid version is not compatible) Legacy 2017-2020 Outback 2015-2020 XV 2018-2022 Colour:Black Material:ABS Package Contents: 1 x Auto Start Stop Eliminator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.